# Medical Management Systems of Michigan

> Medical Management Systems of Michigan (MMSM) is a Lansing-based medical billing, EMS billing, and physician credentialing company helping Michigan providers get paid faster and stay compliant. Locally owned. 30+ years of experience.

Medical Management Systems of Michigan, Inc. ("MMSM") is a locally owned, U.S.-based medical billing, EMS/ambulance billing, and physician credentialing company headquartered in Lansing, Michigan, serving healthcare providers throughout Michigan since 1993. We help physicians, surgical groups, EMS agencies, and urgent care clinics increase collections, reduce claim denials, complete provider credentialing and enrollment, and start or improve their practices.

## Key facts
- Company: Medical Management Systems of Michigan, Inc. (MMSM)
- Headquarters: 1701 Lake Lansing Road, Suite 100, Lansing, MI 48912, USA
- Phone: (517) 485-0001 | Fax: (517) 485-0002 | Email: info@mmsm.com
- Hours: Monday–Friday, 8:00 AM – 5:00 PM ET
- Service area: All of Michigan — Lansing, East Lansing, Grand Rapids, Detroit, Ann Arbor, Flint, Jackson, Kalamazoo, Saginaw, Battle Creek, Traverse City and surrounding regions (within ~120 miles of Lansing and statewide).
- In business since: 1993
- Differentiators: U.S.-based (never offshore), HIPAA-compliant, specialty-specific coders, transparent reporting, named local account managers.

## Services
- [Medical Billing Services](https://www.mmsm.com/services/medical-billing/): End-to-end medical billing that lifts collections, cuts denials, and gives you complete visibility into your revenue cycle.
- [EMS & Ambulance Billing](https://www.mmsm.com/services/ems-ambulance-billing/): Specialized billing for emergency and non-emergency transports — built for the compliance and payer rules unique to EMS.
- [Physician Credentialing](https://www.mmsm.com/services/physician-credentialing/): Get your providers credentialed and enrolled with every payer — accurately, and far faster than doing it in-house.
- [Provider Enrollment](https://www.mmsm.com/services/provider-enrollment/): Get in-network and stay in-network — we manage payer enrollment, revalidation, and group linkage from start to finish.
- [Surgery Billing](https://www.mmsm.com/services/surgery-billing/): High-complexity surgical billing done right — because a single coding error on a surgical claim is expensive.
- [Urgent Care Billing](https://www.mmsm.com/services/urgent-care-billing/): High-volume billing that keeps pace with your clinic — accurate coding and fast claims for every patient who walks in.
- [New Practice Consulting](https://www.mmsm.com/services/practice-consulting/): Starting or restructuring a practice? We help you set up billing, credentialing, and operations so you're profitable from day one.

## Resources & guides
- [How to Switch Medical Billing Companies (Without Losing Revenue)](https://www.mmsm.com/blog/how-to-switch-medical-billing-companies/): Worried that switching billing companies will tank your cash flow? Here's how to make the move cleanly, step by step.
- [Steps to Start a Medical Practice in Michigan](https://www.mmsm.com/blog/steps-to-start-a-medical-practice/): Everything you need to start a medical practice, in the right order — including the credentialing step most physicians start far too late.
- [How to Credential a Physician: Steps, Timeline & Costs](https://www.mmsm.com/blog/how-to-credential-a-physician/): The credentialing process, demystified — what it involves, how long it takes, and how to keep it from delaying your revenue.
- [How Much Does a Medical Billing Service Cost?](https://www.mmsm.com/blog/average-cost-medical-billing-service/): Percentage of collections, flat fees, hidden charges — here's what medical billing really costs and how to judge whether it's worth it.
- [How to Reduce Medical Billing Costs (Without Losing Revenue)](https://www.mmsm.com/blog/reduce-medical-billing-costs/): Cutting billing costs the wrong way costs you revenue. Here are seven ways to lower costs while collecting more.
- [Offshore vs. Local Medical Billing: Which Is Right for Your Practice?](https://www.mmsm.com/blog/offshore-vs-local-medical-billing/): Offshore billing's low rate often hides higher real costs. Here's an honest comparison to help you choose.

## Company
- [About MMSM](https://www.mmsm.com/about/): Who we are, our history, and why Michigan providers choose us.
- [Service Areas](https://www.mmsm.com/service-areas/): Michigan cities and regions we serve.
- [Contact](https://www.mmsm.com/contact/): Request a free billing or credentialing review.

## Full content
- [llms-full.txt](https://www.mmsm.com/llms-full.txt): Full text of every page for LLM ingestion.

## Contact
To request a free, no-obligation revenue or credentialing review, call (517) 485-0001, email info@mmsm.com, or visit https://www.mmsm.com/contact/.