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 663 of 918.
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
- Scott Petersen, MDMaternal & Fetal Medicine Physician1275574519
- Bernice Peterson, CPR & FIRST AIDPersonal Care Attendant1144061029
- Carolyn Peterson, HOME HEALTH AIDEHome Health Aide1891383287
- Cha PetersonProfessional Counselor1740984426
- Charlene Peterson, PHARM. D.Pharmacist1336246156
- Cierra PetersonPersonal Care Attendant1154201887
- Daishya PetersonPersonal Care Attendant1881451227
- Drayor Peterson, HHAHome Health Aide1366708034
- Elisha Peterson, M.D.Anesthesiology Physician1447531678
- Gordon PetersonMental Health Counselor1730968975
- Haley Peterson, LCSWClinical Social Worker1811665342
- Hattie Peterson, MSW, LICSWClinical Social Worker1326039041
- Jamie Peterson, LPC, ATR-BCProfessional Counselor1649752015
- Karen PetersonPersonal Care Attendant1174034797
- Katrina PetersonHome Health Aide1548925332
- Kia PetersonPersonal Care Attendant1831768514
- Larry Peterson, DDSDentist1518072172
- Lauren Peterson, MDSurgery Physician1366061673
- M. Peterson, MSWClinical Social Worker1891813820
- Naomi Peterson, DNP, ACNPC-AGAcute Care Nurse Practitioner1114755428
- Patricia PetersonPersonal Care Attendant1588156103
- Paul PetersonHome Health Aide1013304500
- Rhonda Peterson, HHAHome Health Aide1528325479
- Sabrina PetersonAnesthesiologist Assistant1730615022
- Shayla PetersonBehavior Technician1912674102
- Stephen Peterson, MDPsychiatry Physician1992746515
- Thomas PetersonPersonal Care Attendant1518724806
- Tiara PetersonCase Manager/Care Coordinator1003682477
- William Peterson, M.D.Neurology Physician1144419227
- Monica Peterson CunninghamPersonal Care Attendant1063340818
- Erin Peterson-Ffleming, PH.D.Clinical Psychologist1073717526
- Shayna Peterzell, DOStudent in an Organized Health Care Education/Training Program1447946751
- Bruno Petinaux, MDEmergency Medicine Physician1558347930
- Rubens Petit HommeStudent in an Organized Health Care Education/Training Program1992649966
- Glory PetnkeuStudent in an Organized Health Care Education/Training Program1215731831
- Patricia Petrash, M.S.W.Clinical Social Worker1871713230
- Kimberly Petrey, LGPCMental Health Counselor1508536400
- Ronald Petrie, ARNPFamily Nurse Practitioner1861500027
- Elizabeth PetroskyPhysical Medicine & Rehabilitation Physician1346954963
- Michael PetroskyOther Technician1063498830
- Mecca PetrossSpeech-Language Pathologist1376499277
- Mikael Petrosyan, MDPediatric Surgery Physician1265652242
- Abraham PetrovicPersonal Care Attendant1013660026
- Nancy PetrovicPersonal Care Attendant1497213706
- Charise Petrovitch, MDAnesthesiology Physician1467411348
- Peter Petrucci, MDSurgery Physician1952386237
- Liana Petruzzi, LCSWClinical Social Worker1518769579
- Sarah Petry, MS CCC-SLPSpeech-Language Pathologist1992445449
- Magdalena Petryniak, M.D.Neonatal-Perinatal Medicine Physician1134279912
- Brigitte PetsohHome Health Aide1336753417
The largest District of Columbia cities
- Ne149
- Washington Dc147
- Bolling Afb74
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.