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 521 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. Molly Mayer, LGSWSocial Worker1073199337
  2. Nancy Mayer, PTPhysical Therapist1992950851
  3. Derrick MayesCase Manager/Care Coordinator1770380321
  4. Mikayla MayesPersonal Care Attendant1730723180
  5. Lori MayfieldCase Manager/Care Coordinator1265135784
  6. Shelby Mayfield, RNCase Management Registered Nurse1659158392
  7. Deborah Mayhew, MSW, LCSW, PIPClinical Social Worker1407910797
  8. Jeannetta MayhewHome Health Aide1689936718
  9. Lolithea MayhewPersonal Care Attendant1831977313
  10. Ernestine MayiHome Health Aide1982964474
  11. Michelle MayiCase Manager/Care Coordinator1255229175
  12. Emmanuel Mayi MbebCommunity Health Worker1376348458
  13. Adam MaynardSchool Psychologist1851992820
  14. Heather MaynardCase Manager/Care Coordinator1790486124
  15. Sheila MaynardClinical Psychologist1285465963
  16. Pia MaynorPersonal Care Attendant1326505132
  17. Jacqueline MayoHome Health Aide1225671555
  18. Jasmine MayoPersonal Care Attendant1073097994
  19. Marietta MayoPersonal Care Attendant1346078466
  20. Matthew Mayo, PA-CPhysician Assistant1912362625
  21. Nakia Mayo, HHAHome Health Aide1922515089
  22. Phyllis Mayo, PH.D.Clinical Psychologist1174873061
  23. Regan Mayo, PHDCounseling Psychologist1295085124
  24. Stacey Mayo, LMFTMarriage & Family Therapist1881142016
  25. Tony MayoBehavior Technician1669141966
  26. Emerencia Mayo Epouse Tazoh, HOME AIDPersonal Care Attendant1871457507
  27. Cortreana Mayo Porter, PDWOther Technician1114799327
  28. Ailena Mayo-Mills, NPFamily Nurse Practitioner1245476795
  29. Mejebi Mayor, MDObstetrics & Gynecology Physician1629008792
  30. Fernando Mayor Basto, M.DVascular Neurology Physician1720428808
  31. Julia Mayotte, MSN, CRNPNurse Practitioner1710744347
  32. Sampson MayowaLicensed Practical Nurse1063340404
  33. Anna MaysHome Health Aide1780942052
  34. Joelle Mays, MDObstetrics & Gynecology Physician1881841989
  35. Lauren Mays, PSY.D.Clinical Psychologist1487181426
  36. Leanne Mays, PACPhysician Assistant1831107713
  37. Miya MaysBehavior Technician1629662838
  38. Monica MaysPsychiatric/Mental Health Registered Nurse1407554678
  39. Robert Mays, LICSWSchool Social Worker1144625088
  40. David Mays JrPeer Specialist1255199196
  41. Douglas Mayson, MDVascular Neurology Physician1821226622
  42. Elaine Mazanec, LICSWClinical Social Worker1184353583
  43. Julia Mazariegos, OTR/LOccupational Therapist1346906054
  44. Jay Mazel, M.D.Clinical Cardiac Electrophysiology Physician1851308704
  45. Adrien Mazer, MDInternal Medicine Physician1013141522
  46. Ellen Mazer, LICSW, LGSWClinical Social Worker1265691091
  47. Annette Mazevski, AUDAudiologist1457584153
  48. Ramesh Mazhari, M.D.Interventional Cardiology Physician1609913045
  49. Leena MazidSocial Worker1780354381
  50. Karen Mazie, M.D.Pediatrics Physician1275670135

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.