NPPES file of Aug 9, 2026

Doctors and health care providers in Washington, DC

45,857 individual NPPES records list a practice address in Washington, 1st of 4 District of Columbia cities. The largest group is home health aide: 8,945, 20% of the city's records, against 20% across District of Columbia. Page 546 of 918.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Washington

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Washington in District of Columbia

  • Rank in District of Columbia1st of 4 cities by records
  • Share of the state99.2% of District of Columbia's records
  • Specialties present25 or more taxonomy codes
  • Top three groups39.8% of all records
  • Home Health Aide rank1st of the 10 District of Columbia cities with the most

Providers in Washington, alphabetically

  1. William Menzin, LICSWClinical Social Worker1982746632
  2. Winifred MephaRegistered Nurse1609765510
  3. Karen Mera, APRNNurse Practitioner1316926603
  4. Marco Mercader, MDClinical Cardiac Electrophysiology Physician1275629321
  5. Kathleen MercadoPhysical Therapist1801364740
  6. Yra MercadoRegistered Nurse1962337477
  7. Mariela Mercado Concepcion, MSSpeech-Language Pathologist1396507943
  8. Sonia Mercado-CaceresHome Health Aide1942545744
  9. Felix Merced, PSY.D.Clinical Psychologist1306101100
  10. Annette MercerCommunity Health Worker1770334369
  11. Courtney MercerPersonal Care Attendant1265106454
  12. Denaira MercerClinical Social Worker1851074249
  13. India MercerCase Manager/Care Coordinator1972379576
  14. Janis Mercer, DDSDentist1861631889
  15. Maurice Mercer, HHAHome Health Aide1487903571
  16. Octavia MercerCase Manager/Care Coordinator1245013598
  17. Vivian MercerPersonal Care Attendant1235880345
  18. Brendan Merchant, MDInternal Medicine Physician1952535445
  19. Nadia Merchant, M.D.Pediatric Endocrinology Physician1245527787
  20. Constance Mere, MDNephrology Physician1205945565
  21. Elaine Meredith, RDRegistered Dietitian1447821756
  22. Madeleine MeredithProfessional Counselor1972220754
  23. Malcolm Meredith, MDStudent in an Organized Health Care Education/Training Program1366137135
  24. Robyn Meredith, LCSW-C, LICSWClinical Social Worker1255648770
  25. Zaria MeredithCase Manager/Care Coordinator1457279960
  26. Ethan Mereish, PH.D.Psychologist1164868139
  27. Alethea Merelos, OTR/L, CPAM, CBISOccupational Therapist1114579182
  28. Jacob MerereHome Health Aide1144582263
  29. Secret MeresCase Manager/Care Coordinator1497626832
  30. Alpha MeresaPersonal Care Attendant1548520067
  31. Tsegereda MergiaHome Health Aide1124374046
  32. Ngozi MeribeRegistered Nurse1356880538
  33. Meric Mericliler, MDHematology & Oncology Physician1659866093
  34. Asegedech MeridPersonal Care Attendant1831455724
  35. Roman MeridHome Health Aide1730444787
  36. Wacca Merid, M.D.Internal Medicine Physician1841490695
  37. Kendra Merida Pineda, RPHPharmacist1164072609
  38. Alexis Merin, PSY.D.Psychologist1043592603
  39. Ana MerinoAdult Companion1528668233
  40. Daniel MerinoCase Manager/Care Coordinator1407731003
  41. Rhina MerinoPersonal Care Attendant1457984445
  42. Sonia MerinoPersonal Care Attendant1578190955
  43. Patricia MeriwetherPersonal Care Attendant1306346549
  44. Bekhita MerkeHome Health Aide1336404441
  45. Erica Merker, MS CCC-SLPSpeech-Language Pathologist1881003416
  46. Marquitta Merkison, AU.D.Audiologist1154634749
  47. Jacquelyn MerlehanOccupational Therapist1538513411
  48. Barbara Merlino, MSWSocial Worker1235459595
  49. Daniel Merlis, M.S.W.Clinical Social Worker1679888135
  50. Deany Merlis, MSWClinical Social Worker1972927036

The largest District of Columbia cities

  1. Ne149
  2. Washington Dc147
  3. Bolling Afb74

All of District of Columbia →

How to read this directory

Washington, District of Columbia appears in the CMS National Plan and Provider Enumeration System with 45,857 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Washington - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Washington practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Washington is weighted toward Home Health Aide (8,945 clinicians, followed by Personal Care Attendant with 5,624 and Case Manager/Care Coordinator with 3,669). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to District of Columbia's population, Washington reports roughly 6753.9 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.

For Washington patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.

For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.

Common questions

How many doctors are in Washington, DC?

There are 45,857 registered healthcare providers in Washington, DC, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Washington?

The most common specialties in Washington are Home Health Aide, Personal Care Attendant, Case Manager/Care Coordinator, Student in an Organized Health Care Education/Training Program, Clinical Social Worker. Home Health Aide has the most providers with 8,945.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.

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.