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 641 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. Kristina Oseth, LPCProfessional Counselor1639311871
  2. Maximilian Oshalim, M.D.Internal Medicine Physician1407932015
  3. Ayo OshileHome Health Aide1427753623
  4. Adekunle OshinHome Health Aide1104242122
  5. Omolara OshinHome Health Aide1679843049
  6. Marissa Oshiro, MDStudent in an Organized Health Care Education/Training Program1962144758
  7. Samuel Oshiyoye, PCAHome Health Aide1093063943
  8. Olayinka OshoHome Health Aide1255695102
  9. Victoria Oshodi, ODOptometrist1235155441
  10. Ifeanyi OsigweHome Health Aide1003179771
  11. Eucharia OsimiriLicensed Practical Nurse1962757492
  12. Titilayo OsinowoHome Health Aide1366703878
  13. Amina Osman, PMHNP-BC, FNP-BCPsychiatric/Mental Health Nurse Practitioner1952725152
  14. Faryal Osman, MDStudent in an Organized Health Care Education/Training Program1588075022
  15. Najma OsmanCase Manager/Care Coordinator1144003922
  16. Omer Osman, MDStudent in an Organized Health Care Education/Training Program1255919015
  17. Sara OsmanHome Health Aide1487912101
  18. Teresa OsmanHome Health Aide1033757372
  19. Yasmin OsmanHome Health Aide1568706448
  20. Scott Osmun, MDObstetrics & Gynecology Physician1164623930
  21. Alice Osogbuyi, HHAHome Health Aide1124466362
  22. Olawale OsoloHome Health Aide1780267617
  23. Eric OsorioCase Manager/Care Coordinator1871440792
  24. Tiffany OsorioCommunity Health Worker1982308714
  25. Valentina Osorio, OTD, OTR/LOccupational Therapist1245967058
  26. Fnu Osortoh Atem AgborHome Health Aide1285183459
  27. Titilola OsosanwoHome Health Aide1447520382
  28. Amir Ossivand, PHARMDPharmacist1144636127
  29. Alan Ost, MDDiagnostic Radiology Physician1144210758
  30. Alexander OsterAnesthesiology Physician1174151955
  31. Charles Oster, MDInfectious Disease Physician1295882611
  32. Karen Osterle, MSSA, LICSWClinical Social Worker1295811370
  33. Meredith OstermanCommunity Health Worker1982156642
  34. Karen Ostlie, LICSWClinical Social Worker1851463905
  35. Dale Ostrander, M.DIV., LPCProfessional Counselor1194912089
  36. Riley OstranderBehavior Technician1881492643
  37. Thomas Ostronic, M.D.Cardiovascular Disease Physician1003893470
  38. Andrey Ostrovsky, M.D.Pediatrics Physician1932423993
  39. Augusta OsualaHome Health Aide1962772285
  40. Destiny OsualaHome Health Aide1881075919
  41. Ngozi OsuchukwuGeneral Practice Registered Nurse1174142624
  42. Noel Osuchukwu, RNGeneral Practice Registered Nurse1568081016
  43. Christiana OsujiHome Health Aide1528338464
  44. Kenneth OsujiHome Health Aide1376804195
  45. Ngozi Osuji, NPFamily Nurse Practitioner1043072135
  46. Babatunde Osun, PHARM.DPharmacist1992803837
  47. Onoisewealu OsunborCounselor1013070713
  48. Olalesi Osunsade, MDDiagnostic Radiology Physician1568720266
  49. Rabiat OsunsadeGerontology Nurse Practitioner1780264465
  50. Adebimpe OsuntanHome Health Aide1316208846

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.