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 450 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. Samantha Klig, RDRegistered Dietitian1396367660
  2. Jaclyn Kline, M.D.Pediatrics Physician1962720227
  3. John Kline, LICSWClinical Social Worker1316083405
  4. Joshua KlinePsychologist1831975473
  5. Michael Kline, AGACNP-BCAcute Care Nurse Practitioner1063132884
  6. Prudence Kline, MD PLLCInternal Medicine Physician1891898433
  7. Jason Kling, LICSWSchool Social Worker1528444775
  8. Katherine Klos, M.D.Urology Physician1982849550
  9. Etta KlosiPersonal Care Attendant1568116689
  10. Patricia Klosky, FNPFamily Nurse Practitioner1689848301
  11. Mary Klote, MDClinical & Laboratory Immunology (Allergy & Immunology) Physician1073617452
  12. Elizabeth Kluesener, RNRegistered Nurse1932819521
  13. Paul Kluetz, MDMedical Oncology Physician1205951316
  14. Craig Kluger, DMDGeneral Practice Dentistry1568441517
  15. Makafui Klutse, M.D.Student in an Organized Health Care Education/Training Program1184413320
  16. Susan Kluttz, CRNACertified Registered Nurse Anesthetist1528557162
  17. Susanna KmiecikAnesthesiology Physician1598109829
  18. Edward Knapp, PHARMDPharmacist1083219893
  19. Kristiana KnappBehavior Technician1073184529
  20. Joshua Knappenberger, CCC-SLPSpeech-Language Pathologist1063392876
  21. Matthew Knauer, PSY.D.Clinical Psychologist1316158124
  22. Samuel Knecht, MDDiagnostic Radiology Physician1790274702
  23. Garrett KneeseFamily Medicine Physician1912643255
  24. Martin Kneller, M.D.Body Imaging Physician1558432336
  25. Michael Knep, PSY.D.Clinical Psychologist1396856480
  26. Elizabeth Kniffen, PT, DPTPhysical Therapist1730690207
  27. Anthony KnightCase Manager/Care Coordinator1194081455
  28. Bernard KnightMental Health Counselor1720524457
  29. Courtney KnightHome Health Registered Nurse1558621573
  30. Cyria KnightCase Manager/Care Coordinator1780468637
  31. Elizabeth KnightRegistered Nurse1811326101
  32. Kathryn Knight, PA-SPhysician Assistant1992463533
  33. Lindsay KnightPersonal Care Attendant1093606550
  34. Michael KnightCase Manager/Care Coordinator1508550468
  35. Precious KnightPersonal Care Attendant1275297558
  36. Rebecca KnightClinical Social Worker1861040222
  37. Rita Knight, PCAHome Health Aide1114282712
  38. Sean KnightAdult Companion1053986521
  39. Sidney Knight, LICSWClinical Social Worker1083912505
  40. Terralon Knight, M.D.Family Medicine Physician1558400234
  41. Tracy Knight, LICSWClinical Social Worker1215429352
  42. Varis KnightPersonal Care Attendant1639893035
  43. William Knight, DPTPhysical Therapist1821756081
  44. Kathryn Knill, CNPFamily Nurse Practitioner1326492042
  45. Jerrick Knippel, RDRegistered Dietitian1467171793
  46. Marc Knobbe, DVMVeterinarian1285585315
  47. Angela Knoll, LICSWClinical Social Worker1427201748
  48. Kim Knoll, D.D.S., P.C.Dentist1457581878
  49. Stanley Knoll, M.D.Surgery Physician1962401109
  50. Sydney KnollRegistered Nurse1821923400

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.