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 637 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
- Charity OnwumereHome Health Aide1841602604
- Chioma OnwumereHome Health Aide1972021491
- Eugene OnwumereHome Health Aide1568805562
- Winifred OnwuteakaHome Health Aide1407113640
- Nnamdi Onwuzu, PHARM.DPharmacist1467054353
- Njenwieh Onya ClovisCase Manager/Care Coordinator1003595315
- Christopher OnyangoHome Health Aide1699031484
- Marion OnyanyiPersonal Care Attendant1053929612
- Aissata OnyeaghalaLicensed Practical Nurse1609121920
- Patrick OnyeberechiCase Manager/Care Coordinator1104699727
- Maureen OnyebuchukwuRegistered Nurse1972379675
- Gerald OnyedikaCounselor1215505094
- Eric OnyegbulaHome Health Aide1124754635
- Leonard OnyegbulaCase Manager/Care Coordinator1972202307
- Rosemary Onyegbula, RNRegistered Nurse1063034213
- Mary Onyegbule, PCAHome Health Aide1649606559
- Ifeoma OnyejiakaHome Health Aide1336735877
- Ifeoma OnyejiekweHome Health Aide1780026963
- Angela OnyekaHome Health Aide1023363678
- Theresa Onyeka AtaifoChore Provider1871963207
- Georgeline Onyeka-BenHome Health Aide1770842627
- Victor Onyeka-Ben, HHA; TMECounselor1043852163
- Ngozi OnyekuruCase Manager/Care Coordinator1184543761
- Felix OnyemefienePersonal Care Attendant1932079001
- Francis OnyenakaRegistered Nurse1760344204
- Anne OnyenehoHome Health Aide1194559328
- Grace OnyenemezuLicensed Practical Nurse1255165734
- Jane Onyeneri, HHAHome Health Aide1992065890
- Egoyibo OnyenkwereSocial Worker1720853971
- Franklin OnyeochaPersonal Care Attendant1740948421
- Mary-Christina Onyeocha, HHAHome Health Aide1639501257
- Chi OnyeochachukwuCase Manager/Care Coordinator1376239939
- Rose OnyeonoroNurse Practitioner1255138194
- Chinasaokwu OnyeukwuHome Health Aide1740550698
- Evelyn OnyeukwuHome Health Aide1326318007
- Sallie Onyeukwu-ReaganPersonal Care Attendant1265911184
- Mawiha Onyewu, CRNACertified Registered Nurse Anesthetist1669677035
- Amanda Onyewuenyi, MDObstetrics & Gynecology Physician1336609544
- Ahamefula Onyike, MDOrthopaedic Surgery Physician1144251331
- Chisom Onyilofor, PHARM.D.Student in an Organized Health Care Education/Training Program1407238868
- Chiemeka Onyima, M.D.Anesthesiology Physician1215460076
- Doris OnyimaPsychiatric/Mental Health Nurse Practitioner1144091646
- Rhoda Onyima, MSNFamily Nurse Practitioner1619022480
- Esther OpaluwaLicensed Practical Nurse1699609594
- Chinyere OparaHome Health Aide1366288094
- Festus OparaPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1720373681
- James Opara, PCAHome Health Aide1407194285
- Ngozi Opara, CNA/ HHAHome Health Aide1164307047
- Reginald Opara, HOME CARE WORKERPersonal Care Attendant1255976536
- Scholarstica Oby OparaHome Health Aide1083976484
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.