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Mary Margaret Johnson, MD is a Internal Medicine Physician physician currently practicing at Oaklawn Hospital in Marshall, Michigan. They hold admitting privileges at 1 hospital(s), including OAKLAWN HOSPITAL. To see all the affiliations of Mary Margaret Johnson, MD, start a free trial.

Mary Margaret Johnson, MD is a board-certified Internal Medicine Physician physician. They practice at Oaklawn Hospital in Marshall, Michigan.

Mary Margaret Johnson, MD performs procedures across 560 clinical categories. Their most commonly billed procedures based on Medicare claims data include , , and . Full procedure and CPT code data is available to Dmand AI subscribers, start a free trial.

Mary Margaret Johnson, MD's National Provider Identifier (NPI) is 1053400291. This is a public identifier issued by CMS and can be verified at the NPPES NPI Registry. Their primary taxonomy code is 207R00000X, corresponding to Internal Medicine Physician.

The EHR and practice technology used by Mary Margaret Johnson, MD at Oaklawn Hospital is available to Dmand AI subscribers. Sign up for a free trial to unlock the full technology stack.

Mary Margaret Johnson, MD accepts 0 insurance plans. A full list of accepted payers is available in the profile above.

Mary Margaret Johnson, MD holds hospital privileges at 1 institution(s). Their primary affiliation is OAKLAWN HOSPITAL in Marshall, Michigan.

Mary Margaret Johnson, MD is board certified by American Board of Internal Medicine in Internal Medicine. They have maintained this certification since .

Mary Margaret Johnson, MD's education history is available to Dmand AI subscribers.

Based on CMS Medicare Part B claims data, Mary Margaret Johnson, MD served approximately 323 Medicare beneficiaries in 2023. Total patient volume including non-Medicare patients is available to Dmand AI subscribers.

Mary Margaret Johnson, MD is affiliated with APOGEE MEDICAL GROUP MICHIGAN PC, a large (20+ physician) practice with 27 physicians based in Marshall, Michigan. The practice is independently owned.

Mary Margaret Johnson, MD has 0 indexed publications on record and no active clinical trial listings were found at time of last verification. Their research activity is available to Dmand AI subscribers. Sign up for a free trial to unlock their full research activity.