Live from the CMS NPI Registry
Maryland NPI lookup by specialty
Choose a specialty to see providers with a practice address in Maryland, with their NPI numbers. Each provider has a full NPI record and an exclusion check.
Specialties in Maryland
Checking a Maryland provider before you hire or bill
people and businesses with a Maryland address are on OIG’s list of excluded individuals and entities (October 2026 file): 875 individuals and 33 businesses, 47 added in the last 12 months. That ranks Maryland 29 of 56 states and territories.
Most often listed as: Nurse/Nurses Aide (214), General Practice/Fp (70), Health Care Aide (53), Employee (46), Owner/Operator (38).
Most common reason: conviction of program-related crimes (298).
Maryland Department of Health publishes the Sanctioned Providers (excel). It is separate from OIG’s list: check it as well for anyone who works on Medicaid claims in this state.
All 50 state lists- Confirm the NPI in the CMS registry: NPI lookup (the provider pages below link here too).
- Screen the name against OIG, SAM.gov: exclusion check, or your whole staff list at once.
- Check Maryland’s own Medicaid list: Sanctioned Providers.
- Verify the license with the Maryland board for that profession. NPI records don’t prove a license.