A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).
Learn more about Dr. Mark Rumans:
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Specialties & Research
Dr. Mark Rumans, MD is board certified in Internal Medicine and Gastroenterology.
- He has special expertise in 1 area:
- Hepatitis B
Education & Awards
Dr. Rumans graduated from University of Washington, Seattle.
Dr. Rumans has 2 hospital affiliations:
- St Vincent Healthcare
- Deaconess Billings Clinic
Accepted Insurance Plans
Dr. Rumans accepts these health insurances in at least one office:
- Blue Cross Blue Shield of Montana - 11 plans
- Humana - 3 plans
- Cigna - 2 plans
- Aetna - 1 plan
- United Healthcare - 20 plans
- Wellmark Blue Cross Blue Shield - 1 plan
- Great-West Healthcare - 2 plans