Healthcare providers in Maryland

212,944 active providers practise in Maryland, which is 2.3% of the national registry and makes it the 14th largest state by provider count.

Largest specialties

By primary taxonomy, counting practice location. A provider who lists several taxonomies appears once, under the one they flagged primary.

Neighbouring states by size

• Virginia198,820
• Georgia228,143
• Colorado194,584
• New Jersey232,067
• Washington241,131
• Arizona174,513
• Massachusetts256,759
• Minnesota167,079

Looking up one provider

Counts are from the monthly file. For a specific provider, the lookup reads the live registry, which is the only way to know whether an identifier was deactivated in the last few weeks.

Counts from npidata_pfile_20050523-20260712.csv, built 2026-08-09. Practice location, primary taxonomy only, deactivated identifiers excluded.