Service Areas — Michigan Medical Billing & Credentialing
Based in Lansing, serving medical billing and credentialing clients across the entire state of Michigan.
What areas does MMSM serve?
Medical Management Systems of Michigan is based in Lansing and serves healthcare providers throughout the entire state of Michigan — including Lansing, East Lansing, Grand Rapids, Detroit, Ann Arbor, Flint, Jackson, Kalamazoo, Battle Creek, Saginaw, Midland, Bay City, Mount Pleasant, and Traverse City. We also support practices elsewhere in the U.S. through secure remote service.
Michigan is home — and the whole state is our service area
Medical Management Systems of Michigan is based at 1701 Lake Lansing Road, Suite 100, Lansing, MI 48912, and we proudly serve healthcare providers across the entire state. From a solo physician in a small town to a multi-site urgent care group in a metro area, distance is never a barrier — our billing and credentialing are delivered securely and remotely, with the responsiveness of a local partner.
Michigan regions and cities we serve
Mid-Michigan (our home region)
Lansing, East Lansing, Okemos, Holt, Mason, Charlotte, St. Johns, Owosso, and the greater Capital region.
West Michigan
Grand Rapids, Wyoming, Kentwood, Holland, Grand Haven, Muskegon, and surrounding communities.
Southeast Michigan
Detroit, Ann Arbor, Dearborn, Livonia, Troy, Warren, Novi, and the metro Detroit area.
Mid & Northern Michigan
Flint, Saginaw, Bay City, Midland, Mount Pleasant, and the Traverse City / Grand Traverse region.
South-Central & Southwest Michigan
Jackson, Battle Creek, Kalamazoo, Portage, and surrounding areas.
Why a Michigan-based partner matters
Healthcare billing isn’t one-size-fits-all. Michigan Medicaid (CHAMPS), regional payers, and local practice patterns all shape how claims should be handled. A partner who knows Michigan — and who works in your time zone — catches things a distant or offshore vendor never will.
No matter where in Michigan you practice, you get the same thing: billing, credentialing, and enrollment handled by a U.S.-based team you can actually reach.
Request a free review or call (517) 485-0001.
Frequently asked questions
Straight answers to the questions Michigan providers ask us most. Don't see yours? Just ask.
Do you only work with providers in Lansing?
Do you serve rural and northern Michigan?
Can you help a practice outside Michigan?
Ready to get paid faster?
Talk with a Michigan-based billing and credentialing specialist. We'll review your current numbers and show you exactly where revenue is leaking — no cost, no obligation.