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Joseph Johnson IV

He was destined to be a physician. He never thought of doing anything else. He comes from generations of doctors. They date all the way back to the 1800s. However, turning his studies was a little more interesting. Dr. Johnson says, “[Choosing gastro] was an accident. I ended up training under two men who were Nobel Prize in GI, their enthusiasm for the field was contagious.”

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Joseph Johnson IV, M.D.

He completed his Doctorate at the University of Texas. After this, he accepted a Fellowship at the University of North Carolina. During his career, Dr. Johnson served as Staff Physician at Murphy VA Hospital.

Dr. Johnson was also on a talk show in San Antonio. It had a 10-minute part where he helped viewers better understand and care for their health. Although the program is no longer on the air, he still spreads the word about colon cancer.

Dr. Johnson is a cancer survivor himself. He says that his own experience battling it only fueled his passion for the cause. He says to his patients in daily practice, “When you’re sick or struggling with your health, the last thing that you want to do is sit in a waiting room. Or be shuffled from room to room and talk to doctors who are busy. My experience only enhanced the human element that must exist in this practice. I am dedicated to being responsive, on time, and focused on my patient’s care. I’m focused during every moment I spend with them.”

Education, Memberships and Affiliations
  • University of Texas Health Science Center at Southwestern Medical School, Dallas, Texas, Doctor of Medicine
  • Bexar County Teaching Hospital, University of Texas Health Science Center, San Antonio, Texas, Residency, Internal Medicine
  • University of North Carolina, Chapel Hill, Fellowship, Gastroenterology
  • Medical Director, San Antonio Gastroenterology Endoscopy Center North
  • Fellow, American College of Physicians
I am dedicated to being responsive, on time, and focused on my patient’s care during every moment I spend with them.
Joseph Johnson, M.D.San Antonio Gastroenterology Associates & Endoscopy Centers
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  • Studying medicine since 1989
  • Languages spoken: English

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(210) 242-0021

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San Antonio, TX 78258

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