2026 data CMS NPPES NUCC Taxonomy

Doctors in Washington, DC

Compiled from official public sources by the PlainDoctor editorial team.

Active healthcare providers in Washington sourced from the CMS NPPES weekly file, no proprietary ratings, no editorial scores. NPI counts, specialty distribution, and primary practice addresses refreshed each release.

44,572
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Home Health Aide
Top specialty
9,185 providers
District of Columbia
State
DC

44,572 healthcare providers across 20 specialties

Washington, District of Columbia appears in the CMS National Plan and Provider Enumeration System with 44,572 registered healthcare providers spanning 20 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 2023 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 (9,185 clinicians, followed by Personal Care Attendant with 5,131 and Case Manager/Care Coordinator with 3,128). 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 6564.6 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.

Within District of Columbia, Washington ranks #1 of 6 cities tracked by provider count, accounting for 99.2% of the state's registered providers.

For Washington patients, this directory is most useful as a starting shortlist, searching by specialty narrows the 690-taxonomy roster to clinicians with the relevant training, and each provider page links to NPI, state licensing boards, and the NPPES registry for credential verification. 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, so listing details may be out of date; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients. Nothing on this page substitutes for consulting a licensed clinician about your personal health decisions.

44,572
Providers
20
Specialties
#1
of 6 DC cities
99.2%
of DC providers
6564.6
Per 100K (state)

Which specialties are most common in Washington

Home Health Aide 9,185
Personal Care Attendant 5,131
Case Manager/Care Coordinator 3,128
Student in an Organized Health Care Education/Training Program 2,860
Clinical Social Worker 1,783
Internal Medicine Physician 936
Mental Health Counselor 783
Registered Nurse 781
Behavior Technician 754
Social Worker 738
Physical Therapist 687
Community Health Worker 654
Pharmacist 612
Speech-Language Pathologist 609
Family Nurse Practitioner 599
Pediatrics Physician 581
Professional Counselor 564
Physician Assistant 548
Clinical Psychologist 526
Psychiatry Physician 416

Healthcare Providers (Page 51)

Name
Bolanle Ariyo, D.O.
Family Medicine Physician
Olufunmi Ariyo, PHARMD.
Ambulatory Care Pharmacist
Milagros Ariza, M.D.
Pediatrics Physician
Lina Ariza-Serrano, M.D.
Student in an Organized Health Care Education/Training Program
Aparna Arjunan, PH.D.
Clinical Psychologist
Claudine Arkin
Pharmacist
Emily Arkin, MS, RD
Registered Dietitian
Alexandra Arkoian, LPC
Mental Health Counselor
Marissa Arkus, M.S.
Speech-Language Pathologist
Donna Arling, PHD
Clinical Social Worker
Jeannese Armah
Case Manager/Care Coordinator
Rose-Farrah Armand, LGSW, LMSW
Clinical Social Worker
Sabeyifat Armeda
Home Health Aide
Karenna Armington, MSW
Clinical Social Worker
Matthew Arminio, PA-C
Acupuncturist
Rocco Armonda, MD
Neurological Surgery Physician
Maryellen Armour, LICSW
Clinical Social Worker
Antonio Armstead
Home Health Aide
Chamisa Armstead
Personal Care Attendant
Michael Armstead
Personal Care Attendant
Nicole Armstead, MSW, LGSW
Social Worker
Shawn Armstead
Personal Care Attendant
Aisia Armstrong
Personal Care Attendant
Anita Armstrong
Home Health Aide
Austin Armstrong, MD
Geriatric Medicine (Internal Medicine) Physician
Brian Armstrong, LICSW
Mental Health Counselor
Caitlin Armstrong
Student in an Organized Health Care Education/Training Program
David Armstrong
Personal Care Attendant
Davina Armstrong
Personal Care Attendant
Dawn Armstrong, LPC, NCC, LCPC
Professional Counselor
Earl Armstrong, MD
Pulmonary Disease Physician
Janai Armstrong
Personal Care Attendant
Laura Armstrong, MD, PHD
Neurology with Special Qualifications in Child Neurology Physician
Linda Armstrong
Home Health Aide
Nora Armstrong, LICSW
Clinical Social Worker
Sarrah Armstrong, D.M.D
Dentist
Shirkea Armstrong
Personal Care Attendant
Assata Armstrong-Parham
Social Worker
Karin Arndt, PH.D.
Clinical Psychologist
Roxanne Arneaud, OTR/L
Physical Rehabilitation Occupational Therapist
Sarabjeet Arneja, M.D.
Student in an Organized Health Care Education/Training Program
Alicia Arnett
Case Manager/Care Coordinator
Anita Arnold, D.M.D.
General Practice Dentistry
Chanel Arnold
Personal Care Attendant
Hakim Arnold
Counselor
James Arnold, PH.D.
Psychologist
Karen Arnold
Personal Care Attendant
Katherine Arnold, MD
Obstetrics & Gynecology Physician
Megan Arnold
Speech-Language Pathologist
Roxanne Arnon, M.S. CCC-SLP
Speech-Language Pathologist

Nearby Cities in District of Columbia

Other District of Columbia cities with provider coverage in the CMS NPPES registry.

Compare specialties side-by-side →

Frequently Asked Questions

How many doctors are in Washington, DC?
There are 44,572 registered healthcare providers in Washington, DC, covering 20 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 9,185.

Provider data from CMS NPPES (download.cms.gov/nppes); specialty classification from NUCC Health Care Provider Taxonomy. PlainDoctor does not rate or rank providers. Methodology · About

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from CMS National Plan and Provider Enumeration System (NPPES). Consult a qualified professional before making decisions based on this data.

Compiled from official public sources by the PlainDoctor editorial team.