Dr. Mark James Johnson, DO

Dr. Johnson practices at Osceola Surgical Associates in Kissimmee, Florida.

Dr. Johnson's NPI, 1740783554, was assigned on March 18, 2018. Dr. Johnson graduated from Lake Erie College of Osteopathic Medicine - Bradenton in 2018. Dr. Johnson holds Florida license OS16811.

Dr. Johnson's primary practice is Osceola Surgical Associates, at 806 W Oak St, Kissimmee, FL 34741 in Osceola County. The practice phone is (407) 870-0808.

Dr. Johnson's primary practice is Osceola Surgical Associates in Kissimmee, Florida. Dr. Johnson is also affiliated with HCA Florida Osceola Hospital. The medical group on file is Hospital Medicine Services of Florida. Dmand AI also links Dr. Johnson to 2 more group practices and clinics, 1 hospice 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, 4 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 board certified in internal medicine by the American Board of Internal Medicine. Dr. Johnson is licensed in Florida.

Dmand AI lists acid reflux, acute respiratory failure, cardiac arrhythmia, chest pain, chronic diabetes, chronic hypertension, chronic kidney disease and circulation problems among the conditions Dr. Johnson treats.

CMS data shows 362 Medicare services from Dr. Johnson across 7 procedure codes in 2024, for 162 Medicare patients. Medicare paid $29,374 for them.

CMS counts 162 Medicare patients who saw Dr. Johnson in 2024. The largest group is 75 to 84, with 64 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 29% are also on Medicaid. Their average risk score is 2.81, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Johnson's median patient age at 56, with 52% women.

In 2024, Dr. Johnson wrote 278 Medicare Part D claims for 70 patients. 78% of them were for generic drugs. CMS names the drug for 54 of them, across 4 drugs with 11 or more claims each, at $369 in total drug cost. In 2023, CMS named 12 claims across 1 drug.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 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 Open Payments shows 25 general payments to Dr. Johnson from 12 drug and device companies from 2020 to 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $157.

Dr. Johnson graduated from Lake Erie College of Osteopathic Medicine - Bradenton in 2018.

Dr. Johnson is in network with 17 carriers, including Blue Cross Blue Shield of Michigan, Elevance and HCSC. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.