Dr. Jon Mark Johnson Sr., MD

Dr. Johnson practices at Stillwater Medical Center Authority in Stillwater, Oklahoma.

Dr. Johnson's NPI, 1598765497, was assigned on July 21, 2005. Dr. Johnson graduated from University of Oklahoma College of Medicine in 1984. Dr. Johnson holds Oklahoma license 15120.

Dr. Johnson's primary practice is Stillwater Medical Center Authority, at 608 S Hester St, Stillwater, OK 74074 in Payne County. The practice phone is (405) 372-1480.

Dr. Johnson's primary practice is Stillwater Medical Center Authority in Stillwater, Oklahoma. Dr. Johnson is also affiliated with Stillwater Medical Center. The medical group on file is Select Physical Therapy. Dmand AI also links Dr. Johnson to 3 more hospitals, 4 home health agencies, 1 group practice or clinic, 1 therapy and rehab clinic and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson practices, 10 sites in all. Vendor and product names are available with a free account.

Internal medicine is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Johnson is licensed in Oklahoma.

CMS data shows 3,414 Medicare services from Dr. Johnson across 22 procedure codes in 2024, for 746 Medicare patients. Medicare paid $233,904 for them.

CMS counts 746 Medicare patients who saw Dr. Johnson in 2024. The largest group is 65 to 74, with 291 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 5% are also on Medicaid. Their average risk score is 1.16, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Johnson's median patient age at 71, with 48% women.

In 2024, Dr. Johnson wrote 7,589 Medicare Part D claims for 552 patients. 90% of them were for generic drugs. CMS names the drug for 6,947 of them, across 108 drugs with 11 or more claims each, at $442,154 in total drug cost. In 2023, CMS named 6,371 claims across 109 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dr. Johnson for performance year 2024, reported through an alternative payment model (APM). Dr. Johnson accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Johnson as offering telehealth.

Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)

CMS Open Payments shows 401 general payments to Dr. Johnson from 48 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $944.

Dr. Johnson graduated from University of Oklahoma College of Medicine in 1984.