NPPES file of Aug 9, 2026

Doctors and health care providers in Downey, CA

3,607 individual NPPES records list a practice address in Downey, 60th of 812 California cities. The largest group is behavior technician: 763, 21% of the city's records, against 18% across California. Page 47 of 73.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Downey in California

  • Rank in California60th of 812 cities by records
  • Share of the state0.4% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups32.4% of all records

Compared with California as a whole, Downey has 9.5× the state's share of ambulatory care registered nurse records and 0.38× its share of marriage & family therapist records.

Providers in Downey, alphabetically

  1. Adriana Naranjo, RDADental Assistant1699072439
  2. Florence Nasolo, RNRegistered Nurse1679294938
  3. Roshanak NasrOptometrist1548413669
  4. Gerard Nat, M.D.Dermatology Physician1912007956
  5. Priscilla NavaBehavior Technician1588415285
  6. Rosa NavaAddiction (Substance Use Disorder) Counselor1922888650
  7. Luz NavarreteBehavior Technician1518539386
  8. Armando NavarroBehavior Technician1184559114
  9. Patricia NavarroBehavior Technician1700668217
  10. Stephanie Navarro, LCSWClinical Social Worker1740523414
  11. Nila NeatCase Manager/Care Coordinator1831413194
  12. Ariana Neddermann, FNP-CFamily Nurse Practitioner1548049471
  13. Heather NeeleyCase Manager/Care Coordinator1891931036
  14. Brenda NegreteSpeech-Language Pathologist1881371573
  15. Edith NegreteBehavior Technician1548816770
  16. Nicole Nehoraoff, LMFTMarriage & Family Therapist1962835652
  17. Sima Nekoui, MDNeurology Physician1619044567
  18. Kirtisha NelsonSurgery Physician1033862537
  19. Steven Nelson, COTA/LOccupational Therapy Assistant1487144382
  20. Jessica NevarezBehavior Technician1730659483
  21. Natalie Nevins, D.O., MSHPENeuromusculoskeletal Medicine & OMM Physician1437489010
  22. Richard Newcomer, DDSGeneral Practice Dentistry1275540148
  23. Kathleen Newman, PAMedical Physician Assistant1073613063
  24. Choi-Ying NgPharmacist1952068975
  25. Camthy NgoRegistered Respiratory Therapist1144702093
  26. Chi Ngo, PHARM.D.Pharmacist1861400954
  27. Hong Uyen Ngo, BCBABehavior Analyst1194229963
  28. Jennifer NgoPharmacist1922630078
  29. Paul Ngo, PHARM.DPharmacist1649802729
  30. Quoc-Tuan Ngo, MDOphthalmology Physician1437787645
  31. Huy Nguy, DMDDentist1114645769
  32. Alexander Nguyen, MDFamily Medicine Physician1679278766
  33. Amy Nguyen, DDSPediatric Dentistry1912164435
  34. Andrew Nguyen, MDGastroenterology Physician1154784783
  35. Baothu Nguyen, MA, CCC-SLPSpeech-Language Pathologist1447978556
  36. Chau Nguyen, MDAnesthesiology Physician1417196429
  37. Chris NguyenRegistered Respiratory Therapist1528825007
  38. Christian Nguyen, DMDGeneral Practice Dentistry1316471741
  39. Christine Nguyen, OTROccupational Therapist1740733609
  40. Cong Tam NguyenSchool Social Worker1841382181
  41. Dana Nguyen, PHARM.D.Pharmacist1760629604
  42. Daniel Nguyen, DDSGeneral Practice Dentistry1154059194
  43. Diane Hang NguyenPhysician Assistant1013728526
  44. Dung Nguyen, PHARMDPharmacist1235682832
  45. Eric Nguyen, MPTPhysical Therapist1396162996
  46. Frank Nguyen, PHARM.DPharmacist1417165952
  47. Henry Nguyen, PHARM DPharmacist1053908962
  48. Henry Hao Nguyen, D.O.Internal Medicine Physician1669713780
  49. Jasmine Nguyen, DOInternal Medicine Physician1952989667
  50. Jenny Nguyen, O.D.Optometrist1134662695

The largest California cities

  1. Los Angeles69,537
  2. San Diego52,937
  3. San Francisco38,143
  4. Sacramento33,083
  5. San Jose20,925

All of California →

How to read this directory

Downey, California appears in the CMS National Plan and Provider Enumeration System with 3,607 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 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 2024 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 (763 clinicians, followed by Pharmacist with 248 and Physical Therapist with 159). 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 9.3 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.

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. 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 Downey, CA?

There are 3,607 registered healthcare providers in Downey, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Downey?

The most common specialties in Downey are Behavior Technician, Pharmacist, Physical Therapist, Addiction (Substance Use Disorder) Counselor, Clinical Social Worker. Behavior Technician has the most providers with 763.

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.