Supervision Ratio Rules by State — Retired NPPES Co-location Detector

Author: Minnesota Medicaid Transparency Project | Last updated: June 26, 2026

Behavioral health supervision ratio requirements by state, and the methodology of a retired detector that measured supervisee-to-supervisor enrollment ratios at shared NPPES addresses. The detector generates no referrals.

Part of the Minnesota Medicaid Transparency Project — an independent, data-driven investigation of $23 billion in annual Medicaid spending across 87 counties.

Key Topics

Minnesota Medicaid Fraud — Medicaid fraud in Minnesota — $400M+ prosecuted since 2005, 14 high-risk programs, 87 county oversight gaps, and zero centralized fraud dete...
Medicaid Spending Minnesota — How Minnesota spends $23B on Medicaid — per-enrollee costs, disability spending (#1 nationally), program growth, and managed care payments.
Medicaid Oversight Minnesota — How Minnesota oversees $23B in Medicaid — DHS oversight structure, audit failures, workforce gaps, and the 37:1 expansion-to-oversight ratio...
Medicaid Fraud Cases Minnesota — Prosecuted Medicaid fraud cases in Minnesota — Feeding Our Future, PCA fraud, EIDBI billing schemes, 245D provider abuse, and settlement out...
Which States Have Most Medicaid Fraud — How Minnesota compares on Medicaid fraud risk — per-enrollee spending rankings, oversight gaps, and systemic vulnerability factors by state.