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 28 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. Julia HaddadPhysical Therapist1821954397
  2. Han Haduong, D.D.S.Dentist1740339852
  3. James Hager, PA-CPhysician Assistant1205805868
  4. Wilhelm HaguisanBehavior Technician1942843727
  5. Rachel HahnStudent in an Organized Health Care Education/Training Program1669232278
  6. Courtney HallerSpeech-Language Assistant1073195277
  7. Colleen Halligan, P.T.Specialist1336409044
  8. Elizabeth HamBehavior Technician1245700327
  9. Parvaneh HamediMarriage & Family Therapist1154075851
  10. Doreen Hamilton, N.P.Acute Care Nurse Practitioner1629388798
  11. Rebecca HamiltonCertified Registered Nurse Anesthetist1528711207
  12. April Hammon, OTR/LOccupational Therapist1922332014
  13. Dante HammonsCase Manager/Care Coordinator1811496086
  14. Josette Hamrick, RRTNeonatal/Pediatric Certified Respiratory Therapist1639645047
  15. Michelle Han, D.D.S.Dentist1417492448
  16. Sharon Han, ODOptometrist1497403778
  17. Marina Hanna, DDSStudent in an Organized Health Care Education/Training Program1689405235
  18. Minella HarabidianBehavior Analyst1912676107
  19. Deborah Hardy-Wade, RPHPharmacist1508498122
  20. Eric Hargis, DOFamily Medicine Physician1093104309
  21. Ben HaripotepornkulPharmacist1295366979
  22. Helene Harmatz, MSW,PH.D.Mental Health Counselor1962600247
  23. Diego HaroSpeech-Language Assistant1821979287
  24. Stephanie HaroDay Training/Habilitation Specialist1912763632
  25. Dana Harper, B.A.Case Manager/Care Coordinator1760626329
  26. Amber Harris, DCChiropractor1639937568
  27. Douglas Harris, SUDCCAddiction (Substance Use Disorder) Counselor1417574542
  28. Danny Harrison, M.D.Orthopaedic Hand Surgery Physician1184763435
  29. James Harrison, DPTPhysical Therapist1922149137
  30. Leah Harshaw, CNANurse's Aide1780390294
  31. Dorcia Hart, PHARM.D.Pharmacist1336225754
  32. Ross Hartwell, DCChiropractor1649833567
  33. Dominique HarveyBehavior Technician1578223194
  34. Areio HashemiStudent in an Organized Health Care Education/Training Program1134879240
  35. Mondana Hatzidakis, PA-CPhysician Assistant1689820037
  36. Lisa HaubertPhysical Therapist1992228175
  37. Jesse HaverBehavior Technician1528738101
  38. Debra Hawk, CRNACertified Registered Nurse Anesthetist1437194461
  39. Shavon Hawkins, PA-CMedical Physician Assistant1356582431
  40. Farnaz Hayavi, DDSDentist1215265525
  41. Danese Hayes, M.D.Internal Medicine Physician1689786733
  42. Stephanie Hayes-Jackson, O.T.Specialist1497282230
  43. April Hays, CNMAdvanced Practice Midwife1467819193
  44. Virginia Hazboun, O.T.R./LOccupational Therapist1487977518
  45. Angelina HearnBehavior Technician1194497461
  46. Kelene Hecht, OTROccupational Therapist1154351062
  47. Ole Heggeness, D.O.Family Medicine Physician1518911908
  48. Michael HejaziPeer Specialist1497380422
  49. Julie Helgren, CTRSRecreation Therapist1265955504
  50. Madeline HellerBehavior Technician1205442571

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.