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 156 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. Washawn Castro, LGSWSocial Worker1790478840
  2. Yoselin CastroNurse's Aide1689304818
  3. James Castro ArguetaStudent in an Organized Health Care Education/Training Program1932903457
  4. Nicolle Castro CarocaSocial Worker1699318832
  5. Rochelle Castro Galick, FNPFamily Nurse Practitioner1992377527
  6. Edesa Castro MejiaPastoral Counselor1326881129
  7. Angie Castro MorenoClinical Social Worker1467827113
  8. Jenny Castro RexachEmergency Registered Nurse1437799541
  9. Keiry Castro TeyesHome Health Aide1174139877
  10. Alma Castro-FriasPersonal Care Attendant1376202044
  11. Leslie Castro-LopezCase Manager/Care Coordinator1639033764
  12. Nicole CaswellBehavior Analyst1932519212
  13. Jillian Catalanotti, M.D., M.P.H.Internal Medicine Physician1861674749
  14. Erica Catanoso, PT, DPTPhysical Therapist1972275238
  15. Joseph Catanzano, D.D.S.Dentist1386857654
  16. Andrew Catanzaro, MDInfectious Disease Physician1003957176
  17. Lisa Catapano, M.D.Psychiatry Physician1184872301
  18. Kathryn Cates, M.D.Specialist1104046135
  19. Jessica Cates-Bristol, LICSWClinical Social Worker1578030417
  20. Krystle CatheyClinical Social Worker1962815993
  21. Vivian Cativo, R. N.Registered Nurse1124258033
  22. Joseph Catlett, MDHematology & Oncology Physician1295788263
  23. Hillary Catlin, CRNACertified Registered Nurse Anesthetist1689903395
  24. Kimoela Cato, LICSWClinical Social Worker1396866778
  25. Rashaun CatoHome Health Aide1558616706
  26. Terkiyah Catron, BSN, RNStudent in an Organized Health Care Education/Training Program1114872629
  27. Lester Caudle, M.D., MTM & HSpecialist1407869936
  28. Madeleine Caughey, FNP-BCFamily Nurse Practitioner1649511668
  29. Sandra CaulaPersonal Care Attendant1992286538
  30. Alkita Cauley, RN, IBCLCLactation Consultant (Registered Nurse)1821965047
  31. Sharon Cauley, LICSWClinical Social Worker1407136799
  32. Margaret Caulkins, MDObstetrics & Gynecology Physician1780146522
  33. Maria Cauterucci, LPCMental Health Counselor1780869552
  34. Melvin Cauthen, MSW, LICSWClinical Social Worker1487951448
  35. Marco Cavagna, M.D.Clinical Cardiac Electrophysiology Physician1710144100
  36. Jessica Cavall, MS, RDPediatric Nutrition Registered Dietitian1851089478
  37. Kathryn CavalloStudent in an Organized Health Care Education/Training Program1245972934
  38. Loretta Cavanaugh, HHAHome Health Aide1518224229
  39. Tangelia CavanaughHome Health Aide1457612178
  40. Daniel Cave, DMDGeneral Practice Dentistry1942319082
  41. Carlette CavenaughPharmacist1992640817
  42. Anne Cavett, NPFamily Nurse Practitioner1225337942
  43. Jason Cawley, P.T.Physical Therapist1811062128
  44. Tatyana Cawthorne, PHARMDPharmacist1811668403
  45. Nadia CaycePsychologist1497438170
  46. Lisa Cayous, D.D.S.General Practice Dentistry1407828973
  47. Amanda Cayton, OTR/LPediatric Occupational Therapist1962883744
  48. B Winnifred Cazeau-Edwards, LCSW-CClinical Social Worker1912138785
  49. Arielle CeantRegistered Nurse1255200374
  50. Rozena CeasarHome Health Aide1588929509

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.