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 638 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. Chikodinaka OparaochaLicensed Practical Nurse1821543034
  2. Chinemerem OparaugoHome Health Aide1629333612
  3. Stella OparaugoHome Health Aide1245592252
  4. Shenah OpataLicensed Practical Nurse1649824657
  5. Ashiawu OpeHome Health Aide1225390867
  6. Saburi OpebiyiHome Health Aide1205175163
  7. Kevin OpherPersonal Care Attendant1184489049
  8. Lisa Opipari-ArriganClinical Psychologist1538797451
  9. Kristen OplingerCase Manager/Care Coordinator1801618822
  10. Chenelle OpokuHome Health Aide1669721387
  11. Kingsley Opoku, CSWCase Manager/Care Coordinator1972212074
  12. Isaac Opoku NyannorCase Manager/Care Coordinator1376328377
  13. Isaac Opoku-AsareCardiovascular Disease Physician1184887218
  14. Ian Oppenheim, MDPulmonary Disease Physician1033554605
  15. Monty Oppenheim, MDAnesthesiology Physician1023058955
  16. Hank OppenheimerRegistered Nurse1477283638
  17. Marcy Oppenheimer, M.D.Family Medicine Physician1023243581
  18. Akosua Oppong, NPNurse Practitioner1801350996
  19. Constance Oppong, NPFamily Nurse Practitioner1518743251
  20. Theresa OppongHome Health Aide1063905529
  21. Laura Opsahl, PH.D.Clinical Psychologist1124687579
  22. Irene OpukaStudent in an Organized Health Care Education/Training Program1821426776
  23. Vivian OpusunjuCommunity Health Worker1053139659
  24. Maya Or, MDObstetrics & Gynecology Physician1033748942
  25. Oluwatobi OrabiyiMental Health Counselor1154020949
  26. David Orange, MDDiagnostic Radiology Physician1770557621
  27. Ikenna OrannugoHome Health Aide1952660193
  28. Dror Orbach, DMDOrthodontics and Dentofacial Orthopedics Dentistry1669630091
  29. Sandor Orban, MSW, LGSWClinical Social Worker1215317532
  30. Deirdre Orceyre, N.D., MSOM, LACNaturopath1245272863
  31. Diana Ordin, M.D.Public Health & General Preventive Medicine Physician1639101157
  32. Karina Ordonez AcostaPersonal Care Attendant1750643656
  33. Elizabeth Ordor, MDStudent in an Organized Health Care Education/Training Program1407544562
  34. Morayo OredeinHome Health Aide1588910434
  35. Afolasade OrekoyaCase Manager/Care Coordinator1205537727
  36. Cecilia OrekoyaCase Manager/Care Coordinator1487463782
  37. Rosa OrellanaPersonal Care Attendant1740014117
  38. Carmen Orellana ManjivarHome Health Aide1861755217
  39. Francesca Orfila, LICSW, LCSW-CClinical Social Worker1962001859
  40. Brooke Organ, D.O.Sports Medicine (Family Medicine) Physician1295145167
  41. Sharde OrganPersonal Care Attendant1518823905
  42. Vbenosawemwinghaye Orhue, M.D.Surgery Physician1376709774
  43. David Oria, DOPhysical Medicine & Rehabilitation Physician1659934099
  44. Paul Oriaifo, MDSurgery Physician1649283888
  45. Chidinma OriakuHome Health Aide1306274881
  46. Stephanie Orient, MSOTRLOccupational Therapist1760556526
  47. Camila Maria Orig-Palo, M.D.Pediatrics Physician1730520545
  48. Uwaoma OrihHome Health Aide1144905795
  49. Clement OrimbaHome Health Aide1275976649
  50. Titilayo Orimogunje, NPAdult Health Nurse Practitioner1932447109

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.