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 72 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. Juventia Youn, NPFamily Nurse Practitioner1417344037
  2. Charles Young, DDSDentist1609068097
  3. Katelyn YoungSpeech-Language Assistant1780433953
  4. Michelle YoungPhysical Rehabilitation Occupational Therapist1770019184
  5. Sarah Young, SLPSpeech-Language Pathologist1265041669
  6. Timothy YoungOrthotic Fitter1508053570
  7. Ronald Young-Soares, RPHPharmacist1376857086
  8. Samir Younis, RPTPhysical Medicine & Rehabilitation Physician1881706661
  9. Martin YrraBehavior Technician1306451455
  10. Clara Yu, D.O.Family Medicine Physician1346522026
  11. Collin Yu, PHARM.D.Pharmacist1932649258
  12. Patrick YuGeneral Practice Dentistry1215826003
  13. William Yule, CPProsthetist1780871756
  14. Kenneth Yun, DOStudent in an Organized Health Care Education/Training Program1740747112
  15. Sung Yun, PH.D., L.AC.Acupuncturist1659725984
  16. Martina Zaki, DOStudent in an Organized Health Care Education/Training Program1124874078
  17. Tyler Zalatimo, DDSGeneral Practice Dentistry1689191769
  18. Ernesto Zaldivar BrisenoBehavior Technician1457974032
  19. Amadis ZamarronBehavior Technician1326682261
  20. Flor Zamarron, LVNLicensed Vocational Nurse1295658722
  21. Maruany ZamarronLicensed Vocational Nurse1063213833
  22. Denise ZambranoBehavior Technician1518540830
  23. Lindsay Zamis Dellamaggiora, M.D.Anatomic Pathology & Clinical Pathology Physician1083863112
  24. Nicole ZamiskiBehavior Technician1356903769
  25. Karen ZamoraBehavior Technician1013579515
  26. Raquel ZamoraDay Training/Habilitation Specialist1720835853
  27. Ricardo Zamora, DCChiropractor1467266148
  28. Nenexi Zamorano, AMFTMarriage & Family Therapist1235647785
  29. Jose ZamudioBehavior Technician1124676234
  30. Joseph Zapata HerreraBehavior Technician1831861285
  31. Karla ZaragozaBehavior Technician1013670892
  32. Alexis ZarateBehavior Technician1902780349
  33. Fataneh ZargarAcupuncturist1265379218
  34. Mehdi Zargarian, M.D.Cardiovascular Disease Physician1760429575
  35. Crystal ZavalaBehavior Technician1558951376
  36. Lizeth ZavalaMental Health Counselor1255753406
  37. Amalia ZayasBehavior Technician1336793181
  38. Andrea ZbuckiCounselor1548114788
  39. Carolina ZelayaBehavior Technician1730733593
  40. Allison Zemek, MDAnatomic Pathology & Clinical Pathology Physician1255775698
  41. Alexandra Zepeda, M.AMarriage & Family Therapist1174381867
  42. Iris ZepedaHealth & Wellness Coach1326908492
  43. Haiyi ZhaoBehavior Technician1114550274
  44. Mi Zheng, MDPhysical Medicine & Rehabilitation Physician1811378904
  45. Katrine Zhiroff, M.D.Interventional Cardiology Physician1245353952
  46. Harvey ZhouStudent in an Organized Health Care Education/Training Program1467390047
  47. Shuo ZhouFamily Medicine Physician1184099954
  48. Zhiyu ZhouDental Hygienist1255681425
  49. Ran Zhu, M.D.Pediatrics Physician1790044691
  50. James Ziegenbein, M.D. A PROF CORPInfectious Disease Physician1447278072

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.