Dr. Joseph E. Johnson IV, MD

Dr. Johnson practices at San Antonio Gastroenterology Endoscopy Center North in San Antonio, Texas.

Dr. Johnson's NPI, 1477557072, was assigned on June 10, 2005. Dr. Johnson graduated from UT Southwestern Medical Center in 1983. Dr. Johnson holds Texas license G5224.

Dr. Johnson's primary practice is San Antonio Gastroenterology Endoscopy Center North, at 150 East Sonterra Blvd Suite 110, San Antonio, TX 78258. The practice phone is (210) 491-9998.

Dr. Johnson's primary practice is San Antonio Gastroenterology Endoscopy Center North in San Antonio, Texas. Dr. Johnson is also affiliated with Methodist Hospital. The medical group on file is Texas Digestive Disease Consultants. Dmand AI also links Dr. Johnson to 1 more ambulatory surgery center, named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson practices, 3 sites in all. Vendor and product names are available with a free account.

Gastroenterology is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Johnson is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Johnson's licenses on file in 2 states: Texas and North Carolina.

Dmand AI lists acid reflux, acute gastroduodenitis, chronic indigestion, chronic inflammatory bowel disease (IBD), cirrhosis of the liver, colonoscopy, fatty liver and gastroenteritis among the conditions Dr. Johnson treats.

CMS data shows 929 Medicare services from Dr. Johnson across 11 procedure codes in 2024, for 588 Medicare patients. Medicare paid $96,026 for them.

CMS counts 588 Medicare patients who saw Dr. Johnson in 2024. The largest group is 65 to 74, with 307 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 3% are also on Medicaid. Their average risk score is 1.05, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Johnson's median patient age at 65, with 52% women.

In 2024, Dr. Johnson wrote 2,078 Medicare Part D claims for 851 patients. 73% of them were for generic drugs. CMS names the drug for 1,943 of them, across 24 drugs with 11 or more claims each, at $251,027 in total drug cost. In 2023, CMS named 2,344 claims across 27 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 81 out of 100 for Dr. Johnson for performance year 2024, reported as part of a group. Dr. Johnson accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Johnson as offering telehealth. CMS counts 222 procedures of colonoscopy by Dr. Johnson, more than 95% of the clinicians it reports for that procedure.

Dmand AI links 7 papers to Dr. Johnson, published from 2010 to 2017. 2010 was the busiest year, with 2. The most frequent topics are Cell Line, Tumor. Dr. Johnson has published most often in Cancer Cell Int. Dr. Johnson's most frequent co-authors are Nazeel Ahmad, MD, Marilyn Yuanxin Ma Bui, MD and Jasreman Dhillon, MD.

CMS Open Payments shows 70 general payments to Dr. Johnson from 11 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 92% of the total. Janssen Pharmaceuticals, Inc paid the most, $599.

Dr. Johnson graduated from UT Southwestern Medical Center in 1983.

Dr. Johnson is in network with 23 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 14. Check the plan with the practice before a visit.