Michigan Medicaid Rates: Understanding the CHAMPS Rate Tool

Michigan’s Medicaid program is administered by the Michigan Department of Health and Human Services (MDHHS), with rate information housed in the CHAMPS Code and Rate Reference Tool rather than a single static public fee schedule document, reached through the provider billing and reimbursement section of michigan.gov/mdhhs.

What’s currently published

Current published rates tracked by MedicaidBench:

• 90791 (initial psychiatric diagnostic evaluation): $128.58 per encounter
• 90837 (individual psychotherapy, ~60 min): $64.48 per session

The gap between Michigan’s 90791 and 90837 rates is worth noting on its own — a roughly 2:1 ratio between the initial evaluation and an ongoing therapy session, wider than in several other states MedicaidBench tracks, where the two codes are often closer in value.

Format and access

Because CHAMPS functions as an interactive tool rather than a downloadable document, there’s no single file to bookmark or diff against a previous version — accessing current rate data means querying the tool directly for each code of interest, which is a meaningfully different workflow than states publishing static spreadsheets or PDFs.

What to watch for

States that rely on an interactive rate tool rather than a published document tend to be harder to monitor for changes specifically because there’s no artifact to compare over time — you only know the current value, not necessarily when or why it last changed, unless the tool itself surfaces an effective-date history.

Keeping current

Michigan’s reliance on an interactive tool rather than a static file is part of why MedicaidBench’s own internal documentation flags it as one of the harder states to source reliably — we track what CHAMPS currently shows, but recommend confirming directly with MDHHS before relying on any single cached figure for a compliance-consequential decision. As with every state we track, the goal is to get you as close to the current, correct number as possible while being transparent that some states are genuinely harder to monitor automatically than others.