The GI professionals at San Antonio Gastroenterology Associates are dedicated to providing compassionate care to all of our patients. By utilizing new and innovative technologies and advanced treatment approaches, we are proud to be one of the largest gastroenterology groups in the San Antonio, TX area. We take the time to make sure our patients feel heard and that their treatment plans are created with their needs in mind. You don't have to take our word for it — please take some time to browse through reviews left by past and present patients.
"The infusion clinic at SAGA is comfortable and well staffed. The nurses Natalie and Valarie are very cordial and efficient. I am very pleased with my treatment."
"Have been a patient at this practice for several years. Dr. Franklin is wonderful. He’s attentive, thorough, caring and a great physician. His staff are always friendly. I highly recommend this group"
"After numerous procedures using Dr Joseph Johnson and his staff I continue to be totally happy with each step of my care. Everyone within the organization is friendly, always helpful and professional each step of the way. I would highly recommend SAGA."
"Dr. GUERRA and his staff are the best. Everyone is extremely professional and very kind, helpful. They didn't make me feel uncomfortable 😔. Dr. Guerra is very hands on making sure you are aware of procedure. Romanita Martinez."
"I recently had a procedure at this facility. It was handled very professionally and I had no issues. It was painless and was done in a timely manner. Everyone was very nice to me and concerned for my well being. I would definitely recommend coming here and you will be happy you did."
"I was treated with respect and my issues addressed. I actually met Dr. Johnson! I went to another GI and only dealt with the PA. The PA Ms. Guzman actually showed me in a picture where my problems are and it matches where I feel the pain. No one has ever done that. Very satisfied."
"I was referred to this office by my husband & was very impressed. Everyone was great! I felt really comfortable talking to Dr Johnson’s PA & Harley for scheduling. Thank you for being kind & easy to talk to."
"As usual, Patricia was so helpful. It's always a pleasure to meet with her. This time I didn't have any major problems but Dr Guerra and she were so helpful when I was actually very ill. Thanks be to God for such good health providers"
"My visit was good. Saw a nurse practitioner 1st time. She was very nice, and knowledgeable and about regarding my issues. The office staff always friendly. Very pleasant visit."
"They treated like I was family, very nice people that work their also the Dr I spoke to also said she's gonna get me all fixed up and figure out what's the problem with me.. She was very nice and concerned about my health.."
"Dr Harmon has been my doctor for the past 20 plus years, he is so kind and caring. He listens to all of my concerns and explains all treatments and medications in details, so I can understand. I wholeheartedly recommend him for anyone looking for an awesome Doctor 😀"
"I love this practice. It does take a while to be seen, but it’s worth the wait! Dr. Otero is very friendly, patient, and understanding. His PAs, which I’ve seen both, are excellent and very considerate of patient care and comfort. The nursing staff is always friendly and willing to listen and help. 12/10 highly recommend!"
"Waiting time was better than previous visits. Although P.A. Malone was informative, I feel rushed as if she has a 10-minute limit. I was used to Dr. Guerra's personal attention."
"The woman that took my payment was very rude and insensitive. "May I pull up a chair, I can't stand long" just few more questions. She ignored my request."
"Dr.Moreno & Staff are alwayz friendly & welcoming !!! Been to too many places where front desk staff just act like they honestly don't care or like what they're doing !! Like , why get in a career that makes You unHappy & in turn makes Patients \ Visitors feel horrible on top of what they're already experiencing ! Thankz to ALL of Ya !!!!!!!!!!!!!"
"Outstanding..,all contacts with staff were professional and courteous.:PA Moore expedited my tests and consequently the information information into my diagnosis."
"Excellent service, the results were very well explained. Dr's Guerra Assistant, Mrs Moore was very patient n attentive to my questions n concerns. They didn't took long to call me in. I was very pleased w my visit, thanks!"
"Very satisfied with consulation.Would like to see Dr. Ayala more often.I have a co pay of $15.00.,but the front desk always says I don't have a co pay n am billed later thru the mail, which is a hassle for me to have you mail payment."
"Welcome by very friendly and efficient staff. Doctor familiar with my case and explanation of procedures was very clear. Dr. Flores has taken care of my health for the last two decades. Highly recommended."
"There was some confusion on who was delivering the dishwasher, but the communication with the installer was amazing. When he installed the dishwasher, he was professional and courteous."
"I had to wait 6 weeks to see Dr. FLORES, but time went by quickly. I arrived at 12 for a 12:15 and it was no waiting. Appointment on time. Like that! Great consultation with the doctor. A colonoscopy scheduled to identify any problems I might have. Glad it's this year! Thank you doctor and staff. Everyone answered all my concerns and questions. I've been a patient for at least 20 years, recommend."
"San Antonio Gastroenterology this office was proficient with customer service friendly informative and the PA Moreno was insightful giving me information that I didn't have before making me feel at ease I would recommend this office to anyone that needs a GI doctor"
"Had 2 procedures done by Dr. Otero. Excellent anesthesia as well as pre and post procedure care by nursing staff. Dr.Otero explained results after procedures, very personable, answered any questions I had."
"Staff is very thoughtful and helpful and my PA and Doctor are very nice and explain everything very well, I’ve been with my Doctor for many many years, I trust him completely."
"Very kind everyone. And you feel very confident and secure that you are in good hands. The doctor is very friendly and his work is excellent, you don't feel anything."
"Everyone is very kind. And you feel very confident and secure that you are in good hands. The doctor is very kind and his work is excellent, you don't feel anything..."
"From the front desk to the medical staff, we’re all very helpful, informative, took time to listen to my concerns, and showed their true caring for my well being, all around awesome GROUP of Employees, GOD bless them all and their families"
"Exceptional experience from creating the appointment all the way until my procedure and after. Great care was given and everything was explained in detail, prior to and after my procedure. Thank you to the SA Gastro Team!!"
"I dealt with Travis Holloway to have my d gallbladder removed. I had other issues he was concerned with. He ordered a lot of tests including lab work. The day of surgery even more blood work. His demeanor was very pleasant and he asked a lot of questions. Thoroughly pleased with entire process."
"My visit to SAGA was excellent. The PA explained everything I needed to know very clearly about my condition which is colitis. I would certainly recommend SAGA to family and friends."
"(Translated by Google) Very kind everyone. And you feel very confident and secure that you are in good hands. The doctor is very friendly and his work is excellent, you don't feel anything. (Original) Muy amables todos . Y te sientes con mucha confiansa y seguridad que estás en buenas manos . El doctor muy amable y excelente su trabajo , no se siente nada.."
"Went to my Dr's. appt and met with the P.A. Ms. Moore for the first time and I found her to be kind and patient. Eager to get to the root of the problem! I really felt cared for! I truly liked her. 👍"
"Staff in the lobby area were professional and friendly, P.A was amazing, she was kind and understanding of my concerns! Bloodwork was drawn and once again staff was friendly and professional… didn’t feel a thing when my blood was drawn. Really would recommend this office."
"Very attentive staff. Everything is explained thoroughly in layman's terms. PA Ana Raygoza is an outstanding PA. Knowledgeable, thorough, and empathetic."
"Since I've been going to see Dr Guerra and his staff at SAGA, he has provided me with excellent medical care. Those who have him or anyone in the SAGA staff are fortunate."
"The staff was exceptional! From check-in to Dr. Otero, they were such a great team. Each handled their role so professionally. They worked together so well that my appointment went so smoothly. I would highly recommend Dr. Otero and his staff."
"Dr Moore was able to answer all my questions. She made me feel very comfortable. And took the appropriate time to explain everything to me. I’m very satisfied."
"PA Raygoza was extremely professional with genuine empathy. She looked at me while I spoke. She didn't rush me or interrupt me. She was incredibly professional and kind."
"All my respect for Dr Ernesto Guerra & Dr Karen Spencer for their good care of my health. I highly recommend "SAGA" to anyone with issues of the stomach.👍👍"
"Dr. Spencer and Dr. Guerra and all the staff there are fantastic. They are very friendly and make sure you are taken care of. They listen to your concerns and do their best to answer all questions you may have. I am very pleased with the care I receive from them."
"These wonderful people are downright angelic, from the CHRISTIAN lady who signs you in to all the efficient, professional, genuinely courteous and compassionate staff. Dr. Guerra and Ms, Karen Spencer are amazing CHRISTIANS."
"The doctors and staff are the most organized individuals I have ever known. My colonoscopy was a breeze follow up was even better. Everyone was so friendly."
"Soon I arrive to the clinic, somebody provide me with a mask and ask me to sign in and they call me right away. Everyone was very professional. And they new there post very well."
"The waiting time was minimal pleasant and caring staff, nurses and P.A. Spencer explained my endo. results and listened to my question and concerns. I’m glad she took her time to listen and explain. Great experience!"
"Everyone is friendly and helpful! I feel confident I can call my Dr for any serious issues I am experiencing. The PA Moore is the person I see for routine checkups. She is helpful and gives me good advice that I know I need to follow!"
"I was very pleased with the care that PA Becker gave me. She was very thorough in my examination and precise in explaining to me any questions that I had. Also very deligent in setting up my appointment for my procedure and prescribing me medications to help ease my discomfort. I would highly recommend SAGA to other people who have similar maladies as I do."
"Dr. Richard Otero is the best doctor along with the PA’s & NP’s. My husband is a patient of Dr. Otero for 10 years now & is very pleased with Dr. Otero. ❤️🙏✝️❤️ Thank you!"
"I've always been very satisfied with the services I've received from this clinic. The Dr's are very attentive, very knowledgeable & have very good bedside manners with the patients. Are very good listeners & very empathetic. The staff is very friendly & very knowledgeable & very professional. I'm very content with my Dr's there & very satisfied with all the staff. Keep up the great job. Thank you. 😊"
"The young ladies registering patients were very nice. The pregnant young lady was very friendly and pleasant. Once I was taken back to see PA Veronica she came in very quickly. She's very nice and knowledgeable. She asked questions and explained what I needed to have done. My whole experience was a quick process and very pleasant. I was very pleased since I was a new patient."
"Awesome visit everyone was very professional, friendly, and compassionate, like always. The visit went very smoothly and I was out at a reasonable time. I have been a patient of Dr. Otero for over 35 years and have never had a unpleasant visit."
"Dr. Otero is my Dr. But I had the pleasure of having my appointment with PA Reygoza. She made my visit very informative, and pleasant, and very thorough in my evaluation and explaining any questions I had. I definitely will recommend my friends and family to SAGA."
"(Translated by Google) All the staff are very friendly and very professional, Dr. Guerra is very professional and kind Thank you for everything (Original) Todo el personal es muy amable y muy profesional, el doctor Guerra es muy profesional y amable Gracias por todo"
"I have been going to SAGA for years! The staff is always amazing. They are quick to reach out and answer your questions. I would totally recommend them!!"
"All the staff is ready to make you feel comfortable and put you at ease by answering all your questions. They are caring when it comes to your needs before and after procedures by making sure the preparations before and after the procedures go smooth. They tend to your needs. I would highly recommend this place where they are not only professional but caring at the same time."
"I was very impressed with my PA Patricia Moore. She had me put my daughter on the phone so she could give her details on my visit. I thought that was wonderful since I usually forget what I am told. The office workers are all very nice.❤️"
"Soon after I arrived, the staff quickly got me ready for my appointment. Not in a rushed manner but in an efficient one. The wait was reasonable to try he the PA for my consultation. I was well informed of my procedure’s process and I had my next appointment in less than two weeks."
"PA Karen Spencer always takes the time to listen to you and whatever issues and concerns you have regarding your health. She is extremely patient and goes the extra mile to help you."
"Love coming here, staff is very friendly and the doctors really listen to your concerns and if something doesn't work for you they help you find something that will. They always make sure that you are well taken care of."
"I like everything. From the time I walk in the door to the time I leave is a very pleasant experience. Dr Spencer’s is sensitive and very caring. She looks into everything we talk about. She’s an awesome doctor,"
"The office was very helpful in my situation, everything went very smooth. I definitely recommend anybody to visit this location, very positive as well ! 😊"
"Was a friendly atmosphere excellent customer care service and my experience with the PA Physician Cardona was excellent also. There staff was very friendly and very helpful. EXCELLENT SERVICE... THANK YOU THANK YOU ALL"
"While I've only met Dr.Otero briefly prior to a procedure, I've had a few office visits with Ms. Reygoza. While I would rather not be going to the doctor in the first place, she makes every visit as informative, pleasant, efficient, and quick as possible. I appreciate her genuine concern and patience when answering my questions to put me at ease, because most likely I'm in the office for something unpleasant or worrisome. At my most recent office appointment she took a few extra moments to offer some words of wisdom that she really didn't have to take the time to do and I don't think she knows how much I appreciate her concern."
"My visit was very pleasant, professional and informative. Nurse Practitioner, Karen Spencer was very knowledgeable and offered to answer any questions I may have in the future."
"Excellent service and the staff with the up most care to the patients. Very cooperative and caring about us patients which I saw and very glad with the attention given Mostly thankful to Dr.Ernesto Gurrera for his service and been informative on my condition. Thanks Rosalio Gallegos"
"I am always treated professionally especially when running late with appointments. PA Moore is very knowledgeable and engages in conversation even when she is behind in appointments. I enjoy visits with her because she is real, truthful and doesn’t just tell me what I want to hear. Thanks"
"The office was very helpful in my situation, everything went very smooth. I definitely recommend anybody to visit this location, very positive as well ! 😊"
"(Translated by Google) The care of my DR. HE IS EXCELLENT, I like that he cares about my well-being, health and my economy!! (Original) La atención de mi DRA. ES EXCELENTE, me gusta que se preocupa por mi bienestar,salud y mi economía!!"
"Ms. Moore is always very friendly and thorough. She knows my history when she talks to me, and also asks questions. I feel that she is sincerely concerned with my digestive health. I feel very comfortable talking to her, and asking questions. Also, wait time is not long at all-- in the front waiting room and the back rooms."
"Thank you to all the staff at San Antonio Gastroenterology for being so professional and kind and considerate. Dr. Guerra for creating an amazing team who treat each patient with compassion. You guys do a wonderful job, stay humble."
"Staff, nurses are friendly and take the time with the patient. I have been a patient of Dr. Richard Otero and PA Ana Raygoza for years, both have treated me with respect and understanding. For that they both have my respect and appreciation!"
"The entire clinic staff, especially the caregivers are exceptional. They are very knowledgeable and are always willing to answer any patient questions."
"So great! Ms. Spencer takes time to answer all my questions, and is professional, yet warm. And Dr. Guerra is even better than his sterling reputation. I feel fortunate to have them as my providers."
"The nurses were the best .And the tech that did my Iv had such a good hand that I didn't even feel it when the needle went in.they all listen to you. There just so kind hearted. And the Dr that did the procedure was so kind also he made me feel so relaxed. The only thing I missed was the music they used to put on back 10 years ago.I almost forgot the dr that put me to sleep she was so sweet I thank you so very much."
"(Translated by Google) The staff is very attentive, my Dr. Guerra's assistant, very friendly, gives me very good answers to my questions, excellent service (Original) El personal muy atento ,la asistente de mi Dr. Guerra ,, muy amable me da muy buenas respuestas a mis preguntas,,excelente servicio"
"Dr. Richard Otero has been My n My Families Gastroenterologist and has always been very personable and professional . He Treats Myself and My Family Like An Extended Family. Dr. Raygoza is An Amazing Dr. . Thank You 🙏 Both"
"Office staff is very attentive , calm clean environment. Excellent doctors. Dr. Guerra explains in terms that you can understand. He is pleasant, professional ,caring, thorough and has patience"
"Excellent staff. Very helpful, but the office gets overwhelmed with patients. More Dr's needed. Dr. Otero was a pleasure. Made me feel so comfortable. His team was was a God send. My only concern was my lip getting busted from the mouth piece."
"This was my 4th or 5th visit and my first time to see the Doctor’s Assistant. She was very nice and very knowledgeable about this unfortunate subject to the problem I was having. I left the office feeling a lot better."
"I recommend highly San Antonio Gastroenterologist to everyone the staff were very helpful and the dr was very nice and helpful thank you for everything."
"I am very pleased with the care I recieved,was seen by Dr Guerra & Dr. Karen Spencer. I would recommend this facility to anyone. Dr Spencer explains ,hears me with my issues & genuinely cares. 💯% satisfied🙋♀️"
"I have seen Dr Otero & Dr Raygoza, both are amazing! Both give you undivided attention and address your questions. I would definitely recommend anyone to SAGA. It’s a place that treats you as a person and not as a number. ☺️"
"Dr.Karen spencer is the best doctor She listens to me and is always there to help me with all my pains anything the is going on with me she allways there to get me help ..help with anything swollowness pains surgurys anything I need done anytime I need her shes there .. Thankyou so much for being there ..and belive me I have löts of stomach issues and she helps me so much that I think I would be dead without her there for me thankyou.."
"My mother was a patient of Dr Guerra for many years, he always gave her the upmost professional yet sincere compassionate loving health care. I could never thank him enough for the peace of mind he gave her knowing her health was a priority & important to him as her doctor. Since losing my mom to a lung transplant...I have now developed health issues that I have become a patient of Karen Spencer with Dr Guerra’s practice. She is absolutely one of the best! I have been seeing her about 2years maybe longer & she is extremely professional yet also very personable, caring, extremely thorough with each visit. I never feel rushed or end an appointment with any sense of neglect. She faithfully returns phone calls daily, is a supreme plus especially during these times. She offers solutions from all avenues & is considerate of the cost of meds including over the counter meds. She is very kind, extremely knowledgeable & a sincere, genuine medical professional! I highly recommend her, so much so, my Son is also now a patient of hers."
"He is a really nice dr that takes time to listen to what is wrong with your body and tells you what he need to do to correctly find the issue to what is wrong ."
"I would definitely recommend Doctor Otero and his staff. They are knowlegable, professional, caring, orderly and quick. You feel you are in good hands."
"I rate this place at 10 Karen Spencer provided me with a lot of help I appreciate everything she had done for me and I would recommend other patients to come and see her"
"Dr Guerra is a very knowledgeable, thorough, and caring physician. He is an excellent diagnostician. He always gives every patient the time they need and answers all questions."
"Dr Ortero is the best Gastroenterologist, there is in San Antonio, Tx. He is very concerned about his patients. Always takes the time to reach out to you."
"K. Spencer is amazing, she has helped me every inch of the way, since diagnosed. I can always rely on her feedback qhen I am having an issue, she not only listens to my problem, she makes sure that you are able to get relief from a flare up or any other issue that reflects from your ailment."
"Dr Ernesto Guerra is an EXCELLENT Physician with outstanding bedside manner. He takes his time explaining procedures and care. He is professional and genuinely cares about his Patients. I highly recommend him."
"Extremely nice assistant very helpful and Dr. Johnson is very nice, comes across as a very considerate person. He explains your condition in detail and is concerned how you feel. He makes you feel welcomed and is attentive your concerns."
"Dr.Karen spencer is the best doctor She listens to me and is always there to help me with all my pains anything the is going on with me she allways there to get me help ..help with anything swollowness pains surgurys anything I need done anytime I need her shes there .. Thankyou so much for being there ..and belive me I have löts of stomach issues and she helps me so much that I think I would be dead without her there for me thankyou.."
"Dr. Steven Ramos listened to the problems I'm having, very understanding. His gentle with the treatment that he gives. He's awesome I will go to no one but him."
"I have been going with Dr. Ernesto Guerra for 25 years. I have been very pleased with his patience and understanding of my problems and his explanation to all my questions. Dr Guerra has always taken his time to listen to my needs and my concerns. He’s nursing staff have always been very respectful, kind and considerate. I’ve always recommended Dr Guerra to all my friends and relative. Many have gone with him and are very pleased and thanked me for referring them to him."
"Dr. Ramos is a very caring doctor. He listens, gives very good explanations, and is very thorough in his examinations. He has been my GI doctor for many years, and I highly recommend him."
"Dr Serna is excellent. He provided excellent care when I needed it the most. From what I remembered he listened to my history and was sympathetic to my story. THANK YOI DR SERNA!"
"I put complete trust in Dr Johnson. I went in and he and the staff were professional and kind he was there before the procedure started and after to explain his findings. I recommend him and the entire staff"
"Karen Spencer and Dr Geurra have always been a caring people when it comes to healthcare always been available to answer my questions and relieve me of any confusion. Other doctors may say they care when it comes down to you asking questions of your health and taking time to call you back Karen is a step above all other making sure she replies to all your questions and concerns."
"Dr. Otero and his staff have been extremely wonderful to me. I only wish I’d seen him much sooner when referred a few years back. When we’re younger, we tend to put things off; but now as I’m getting older Dr. appointments are extremely important and just wish everyone had the same mentality on the importance of keeping appointments and following Dr.’s orders! Thank you Dr. Otero! You guys ROCK!!"
"Exceptional experience and follow-up care. Kinda sad I've aged out of the colonoscopy! Thanks Dr. Otero, Dr. Raygoza and the always caring and professional staff. Thank you and God bless you all."
"Every experience at San Antonio Gastroenterology has been a positive one. Front desk, prep nurses, Dr. Belinda Ramirez and immediate staff are professional and courteous. Thank you for keeping the downtown office operating. Very convenient."
"My experience with the Staff at SAGA has always been professional and caring! Dr. Belinda Ramirez, She is caring and shows concern of my health. I have other family who are currently under care and feel the same way."
"Have seen Dr. Otero and staff for almost 20 years. Always the most courteous, professional, efficient medical office I’ve ever been to. Love Dr. Otero and his bedside manner. Very pleased with the level of detail service I’ve received."
"Dr. Otero was gave my information in an easily understandable manner & readily answered my questions. I had confidence in his skills. He treated me with respect. I reccomend anyone him to anyone needing his services."
"I have seen Dr Otero & Dr Raygoza, both are amazing! Both give you undivided attention and address your questions. I would definitely recommend anyone to SAGA. It’s a place that treats you as a person and not as a number. ☺️"
"I had a colonoscopy and endoscopy performed by Dr. Richard Otero in the past month. It was an incredibly positive experience from start to finish after arriving at the procedure center. Everything was handled extremely efficiently, professionally and in such a kind and caring manner. I have nothing but praise for each healthcare worker that I encountered. May I add that Dr. Richard Otero is one of the kindest and most compassionate doctors I have encountered in my 74 years of life!!! I highly recommend him as an excellent doctor, plus he is a wonderfully caring individual. You are not just a “number” to Dr. Otero. He has been my gastroenterologist for the past 20 years. He has consistently provided excellent medical care while caring about me as a patient/person. I highly recommend Dr. Otero and his associates with your gastroenterology needs. You will not be disappointed!!!! Judith M. Van Natter"
"Best care ever. P. A. Miss Spencer is super professional and very caring. She took all her time explaining my test results and answered my questions to my full satisfaction. I am 100% satisfied with the fare they provide and highly recommend them to my family and friends."
"I had a very informative FaceTime call with Karen. Of course, we reviewed medications and symptoms but she also gave me advice on obtaining a cardiac monitor. The call was pleasant, professional, and helpful."
"I recommend this establishment. The entire Staff is helpful, and thoughtful. DR.SERNA was amazing. The entire Staff made me feel like I mattered and my needs were met. Thank you."
"Physicians are absolutely wonderful. They make you feel like family. They do not rush you out. The office staff- they need some work. I call leave message they say they will get back never get back. So I show up at office and get a bit of a run around. Told the nurse will call you back. Never called back show up again next day then I get in to see Physician. While waiting another patient comes in little upset because no one called her back. So she did what I did showed up in person to get answers. This is unacceptable. I continue to go here for the fabulous physicians/practitioners."
"The care I've received has been great. Even when i have difficulty putting into words my symptoms, etc. she is still able to figure it out. She is very empathetic and doesn't make the appointment feel rushed but addressed my concerns and let me know i could contact her if additional concerns came up. Would have been 5 stars but sometimes getting through to office is difficult and got voicemail several times. 👩⚕️(Spencer gets 5 because she did tell me how to reach her directly about my treatment)🤗"
"I left a message for you that the Rx you prescribed cost too much and never received a call back an still taking the Dok back to 2xs a day want to make an appointment with Dr. Guerra ONLY on my next appt. Thank you"