Dr. John Mark McLain, MD

Dr. McLain practices at CHRISTUS Mother Frances Hospital - Clinic Services - Douglas - HOPD in Tyler, Texas.

Dr. McLain's NPI, 1366857336, was assigned on June 27, 2014. Dr. McLain graduated from Boonshoft School of Medicine in 2014. Dr. McLain holds Texas license S5985.

Dr. McLain's primary practice is CHRISTUS Mother Frances Hospital - Clinic Services - Douglas - HOPD, at 520 Douglas Blvd, Tyler, TX 75702.

Dr. McLain's primary practice is CHRISTUS Mother Frances Hospital - Clinic Services - Douglas - HOPD in Tyler, Texas. Dr. McLain is also affiliated with CHRISTUS Santa Rosa Hospital - San Marcos. The medical group on file is CHRISTUS Trinity Clinic. Dmand AI also links Dr. McLain to 2 more hospitals, 1 group practice or clinic and 1 urgent care center, each named with a free account. Dr. McLain's employer is on file too: a hospital.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. McLain practices, 6 sites in all. Vendor and product names are available with a free account.

Surgery is Dr. McLain's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. McLain is board certified in surgery by the American Board of Surgery. Dr. McLain is licensed in Texas.

Dmand AI lists abdominal adhesion surgery, abdominal hernia repair surgery, acute gallbladder or bile duct inflammation, appendectomy, colon removal, esophagus, stomach, or upper small intestine surgery, gallbladder removal and gastrointestinal bleeding among the conditions Dr. McLain treats.

CMS data shows 134 Medicare services from Dr. McLain across 4 procedure codes in 2024, for 113 Medicare patients. Medicare paid $12,168 for them.

CMS counts 113 Medicare patients who saw Dr. McLain in 2024. The largest group is 65 to 74, with 61 patients. 75% of them have high cholesterol, and 73% have high blood pressure. Their average risk score is 1.37, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. McLain's median patient age at 60, with 54% women.

In 2024, Dr. McLain wrote 46 Medicare Part D claims for 35 patients. 96% of them were for generic drugs. CMS names the drug for 30 of them, across 1 drug with 11 or more claims each, at $37 in total drug cost. In 2023, CMS named 21 claims across 1 drug.

Dr. McLain accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)

Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)

Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)

Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)

Dmand AI links 3 papers to Dr. McLain. The most frequent topics are Diabetes Mellitus, Experimental, Diabetes Mellitus, Type 2 and Mice, Obese. Dr. McLain's most frequent co-author is Adrianna Elizabeth Eder.

CMS Open Payments shows 31 general payments to Dr. McLain from 9 drug and device companies from 2021 to 2025. Honoraria make up the largest share, 45% of the total. Pacira Pharmaceuticals Incorporated paid the most, $3,873.

Dmand AI lists 2 awards for Dr. McLain, most recently Kimball I. Maull Research Award, 1st place in 2018.

Dr. McLain graduated from Boonshoft School of Medicine in 2014. Dr. McLain is a member of ACS and SAGES.

Dr. McLain 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.