NPPES file of Aug 9, 2026

Psychiatry Physician in Maryland

1,451 NPPES records list psychiatry physician with a practice address in Maryland, 23 per 100,000 residents, the 7th highest rate of 51. Baltimore and Bethesda have the most; each record links to the provider's NPI and the Maryland license search. Page 30 of 30.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2084P0800X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Baltimore has the most, 497

  1. Baltimore497
  2. Bethesda171
  3. Rockville80
  4. Towson71
  5. Chevy Chase47

Psychiatry Physician records in Maryland

  1. David Zwerdling, M.D.Kensington, MD 208951679679609

Source: CMS NPPES, primary taxonomy 2084P0800X: records by practice city and the list of records, file of Aug 9, 2026.

Maryland ranks 7 of 51 per resident

  1. New York34
  2. Connecticut32
  3. Vermont31
  4. Maryland23
  5. Maine23
  6. Hawaii23
  7. 50 states and D.C.17

Source: CMS NPPES, primary taxonomy 2084P0800X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

62.6% of these records appear in a Medicare file, against 68.5% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. Maryland62.6%
  2. United States68.5%

Psychiatry Physician records in Maryland, measured

  • In a Medicare file909 of 1,451 · 62.6% here, 68.5% nationally
  • In the CMS Doctors and Clinicians file526 · 36.3% here, 42.4% nationally
  • Not updated in five years or more871 · 60.0% here, 56.2% nationally
  • Median graduation year2000 · the 525 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2084P0800X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,451 NPPES records list psychiatry physician (2084P0800X) as their primary taxonomy with a practice address in Maryland: 23 per 100,000 residents against 17 nationally (50 states and D.C.). Baltimore has 497 of them (34%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Virginia1,395
  2. New Jersey1,520
  3. Ohio1,587
  4. Georgia1,291

States with a similar rate per 100,000

  1. Maine23.4
  2. Hawaii23.1
  3. California22.3
  4. Pennsylvania20.5

The largest states

  1. California8,673
  2. New York6,589
  3. Texas3,318
  4. Florida2,744
  5. Massachusetts2,736

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.