Doctors in Downey, CA
Active healthcare providers in Downey sourced from the CMS NPPES weekly file, no proprietary ratings, no editorial scores. NPI counts, specialty distribution, and primary practice addresses refreshed each release.
3,517 healthcare providers across 20 specialties
Downey, California appears in the CMS National Plan and Provider Enumeration System with 3,517 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 Downey - 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 Downey 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 Downey is weighted toward Behavior Technician (751 clinicians, followed by Pharmacist with 244 and Physical Therapist with 154). 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 California's population, Downey reports roughly 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.
Within California, Downey ranks #58 of 805 cities tracked by provider count, accounting for 0.4% of the state's registered providers. Of California's most common specialties, Mental Health Counselor is the most prominent one with no provider currently listing a Downey practice address, a coverage gap Downey patients typically fill by traveling to a larger nearby hub.
For Downey 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.
Which specialties are most common in Downey
Healthcare Providers (Page 47)
| Name |
|---|
| Henry Hao Nguyen, D.O. Internal Medicine Physician |
| Jasmine Nguyen, DO Student in an Organized Health Care Education/Training Program |
| Jenny Nguyen, O.D. Optometrist |
| John Nguyen Licensed Vocational Nurse |
| Joyce Nguyen, NP Family Nurse Practitioner |
| Kate Nguyen, PHARM.D Pharmacist |
| Katie Nguyen, FNP Nurse Practitioner |
| Lani Nguyen, OTR/L Occupational Therapist |
| Luong Ngoc Niki Nguyen, RCP Certified Respiratory Therapist |
| Margaret Nguyen Optometrist |
| Michael Nguyen, DO Anesthesiology Physician |
| Michael Nguyen, D.O Anesthesiology Physician |
| Michelle Nguyen, DO Student in an Organized Health Care Education/Training Program |
| Milan Nguyen, R.PH Pharmacist |
| Minh Nguyen, RPH Pharmacist |
| Nga Nguyen Pharmacist |
| Nina Nguyen Pharmacist |
| Peter Nguyen, M.D. Pulmonary Disease Physician |
| Phu Nguyen Pharmacist |
| Sarah Nguyen Pharmacist |
| Thanh Nguyen Pharmacist |
| Theresa Nguyen, PHARM D Pharmacist |
| Theresa Nguyen, LCSW Mental Health Counselor |
| Thuytien Nguyen, PHARM D Pharmacist |
| Tiffany Nguyen, MD Internal Medicine Physician |
| Tom Nguyen, PHARM.D Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist |
| Tony Nguyen, FNP-C Family Nurse Practitioner |
| Tri Nguyen, M.D. Anesthesiology Physician |
| Victoria Nguyen, DDS Dentist |
| Vivi Nguyen, DDS General Practice Dentistry |
| Vivian Nguyen, PHARM.D, Pharmacist |
| Wendy Nguyen, PA-C Case Manager/Care Coordinator |
| Irene Nham Physical Therapy Assistant |
| Joi Nichols Case Manager/Care Coordinator |
| Jessika Nickerson Behavior Technician |
| Mary Nieraeth, RD Registered Dietitian |
| Bhoomin Nimitsilpa, MD Internal Medicine Physician |
| Lizabeth Nino Marriage & Family Therapist |
| Julie Nivela Licensed Psychiatric Technician |
| Helen Njoku Nurse Practitioner |
| James Noe, DDS Dentist |
| Michael Noel, D.O. Anesthesiology Physician |
| Carrie Nofziger, PTA, B.A Geriatric Physical Therapist |
| Reymon Nolan Day Training/Habilitation Specialist |
| Behnaz Nonahal, D.D.S. Dentist |
| Elizabeth Norheim, M.D. Orthopaedic Surgery of the Spine Physician |
| Oshay Norwood Community Health Worker |
| Maria Novotny, O.T. Occupational Therapist |
| Carmina Nunez Behavior Technician |
| Fernando Nunez, CP Prosthetics Case Management |
Nearby Cities in California
Other California cities with provider coverage in the CMS NPPES registry.
Frequently Asked Questions
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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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-05-20.