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 619 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
- Blaise Nzemngoe, PCAHome Health Aide1366876591
- Franklin NzenangBehavior Technician1083509863
- Bernard NzeribeAdult Psychiatric/Mental Health Registered Nurse1164114765
- Didorette NzeucheCase Manager/Care Coordinator1871341677
- Tre'Eisha Nzidee, OTR/LOccupational Therapist1811562531
- Ash Len Gabila Nzie NebaCase Manager/Care Coordinator1568227221
- Valentine NzitoneCase Manager/Care Coordinator1639978539
- Jean Baptiste NzobouPersonal Care Attendant1811563406
- Darlington Nzogge NzoggeCase Manager/Care Coordinator1912828799
- Jacqueline NzouabetHome Health Aide1033465976
- Marie Nzouadjeu NjamenHome Health Aide1831928498
- Blaise Nzouakou, HOME HEALTH AIDEHome Health Aide1649514720
- Clair NzounkekangHome Health Aide1679837884
- Roy Nzounkekang, HHAHome Health Aide1679837140
- Sandra Nzounkwelle, PHARMDPharmacist1861974818
- Clotaire NzountchimouHome Health Aide1770929358
- Durie O, D.P.T.Physical Therapist1942554548
- Amelia O'BannonCase Manager/Care Coordinator1699457820
- Patricia O'Berry, APRNPediatric Clinical Nurse Specialist1538540661
- Edward O'Brian, PAPhysician Assistant1366643744
- Bridget O'BrienClinical Social Worker1174093306
- Carrie O'BrienPersonal Care Attendant1427674431
- Chrysanthus O'BrienAttendant Care Provider1164017794
- Ellen O'Brien, MDPediatrics Physician1992965008
- Julia O'Brien, OTR/LOccupational Therapist1972389070
- Kerry O'BrienPhysician Assistant1912852740
- Matthew O'BrienPersonal Care Attendant1376160135
- Maura O'Brien, DNP, FNP-CFamily Nurse Practitioner1831960335
- Michael O'Brien, MDPediatrics Physician1437738168
- Pamela O'Brien, LPCMental Health Counselor1831324268
- Paul O'BrienPersonal Care Attendant1780201509
- Sharon O'BrienPulmonary Disease Physician1477541647
- Stephanie O'Brien, MSW, LGSWClinical Social Worker1306624663
- Timothy O'BrienCase Manager/Care Coordinator1639887995
- Casey O'Bryan, NP-CFamily Nurse Practitioner1891066650
- Tyra O'BryantOccupational Therapy Assistant1568937977
- Colleen O'Byrne, PSY.D.Clinical Psychologist1194967935
- Anna O'Connell, COTA/LOccupational Therapy Assistant1679240980
- Francis O'Connell, MDEmergency Medicine Physician1154566941
- Sarah O'Connell, LICSWClinical Social Worker1548493018
- Shaylin O'ConnellOccupational Therapist1518460054
- Veronica O'ConnellClinical Social Worker1942014139
- Melissa O'Connell Liggett, PH.D.Clinical Psychologist1528206778
- Elizabeth O'Connor, MDFamily Medicine Physician1629040498
- Stephen O'Connor, MFTMarriage & Family Therapist1306901764
- Anne O'DonnellPulmonary Disease Physician1629066899
- Devon O'Donnell, MDStudent in an Organized Health Care Education/Training Program1790472140
- Elizabeth O'Donoghue, MPTSpecialist1568568038
- Susan O'Donoghue, MDCardiovascular Disease Physician1457306771
- Eleni O'Donovan, M.D.Family Medicine Physician1568637569
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.