NPI Lookup · Maryland

Maryland NPI lookup

212,484 active providers and organizations hold NPIs registered in Maryland: 159,273 individual clinicians and 53,211 organizations, across 753 cities. Search them by name, free, no signup.

212,484
Active NPIs in Maryland
159,273
Individual clinicians
53,211
Organizations
753
Cities with a registered provider
Where they are

Where Maryland's providers are registered

Registry counts by practice city and primary specialty. The count is the finding: it's the size of the ground a rep covers here.

Most NPIs by city

Baltimore44,830
Rockville15,578
Silver Spring8,616
Columbia8,298
Bethesda8,275
Frederick5,579
Towson4,950
Annapolis4,747
Laurel3,521
Bowie3,496

Most common specialties

Behavior Technician24,361
Clinical Social Worker10,051
Physical Therapist7,280
Home Health Aide7,131
Student in an Organized Health Care Education/Training Program7,122
Internal Medicine Physician5,980
Mental Health Counselor5,809
Pharmacist5,652
Speech-Language Pathologist4,726
Professional Counselor4,571
Where this data comes from. Provider identity, specialty, and practice location come from CMS's public NPPES registry (the National Plan & Provider Enumeration System), the official record of every NPI ever issued. Deactivated NPIs are excluded. Addresses are what the provider filed and can lag a move. Where a profile shows Medicare context, it comes from CMS's public utilization, Part D, and Open Payments files: traditional Medicare fee-for-service only, and CMS suppresses any provider-and-code line under 11 beneficiaries before publishing. An Open Payments record is a disclosed relationship, not evidence a clinician uses a product. Prospect 811 organizes public data; it doesn't add to or alter it. Not affiliated with or endorsed by CMS. Full detail on the data page.

Looking for another state? Back to the national NPI lookup.

A registry counts Maryland's providers. A rep needs the right 5.

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