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.

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. Gemma AbadPlastic Surgery Registered Nurse1740017649
  2. Behzad Abadi, DMDDentist1588879100
  3. Clairine AbadiBehavior Technician1093303299
  4. Celeste AbarcaBehavior Technician1700541133
  5. Habid AbdelkrimCommunity Health Worker1447036298
  6. Garen AbediUrology Physician1285909051
  7. Katharine AbeelBehavior Analyst1063979847
  8. Aaron AberaBehavior Technician1417624677
  9. Carolina AbkarianClinical Social Worker1700102803
  10. Ariel Abrahams, MDObstetrics & Gynecology Physician1376726174
  11. Antonio Abrahano, R. P. T.Physical Therapist1225278856
  12. Katherine AbregoBehavior Technician1245892991
  13. Leila AbulashinOccupational Therapist1265854533
  14. Robert AcostaRehabilitation Practitioner1316480882
  15. Katherine Aculco, PTLicensed Psychiatric Technician1609945310
  16. Brian Adair, LCSWClinical Social Worker1922196583
  17. Teeni Adal, RDNRegistered Dietitian1730642562
  18. Michele Adame, PTPhysical Therapist1366970410
  19. Alessandra AdamoNurse Practitioner1295228799
  20. Anastasia AdamsCase Manager/Care Coordinator1912136821
  21. Frank AdamsCase Manager/Care Coordinator1619113529
  22. Jade AdamsAddiction (Substance Use Disorder) Counselor1134908585
  23. Edilberto AdayaRegistered Nurse1619780079
  24. Christa Adeyemi, AODAddiction (Substance Use Disorder) Counselor1639988066
  25. Mark Adriatico, M.D.Internal Medicine Physician1194913608
  26. Leslie AedoSpeech-Language Pathologist1255865259
  27. Gary AfferinoPharmacist1437696267
  28. Patrocinia Afkari, RPHPharmacist1124582465
  29. Sohail Afra, M.D.Internal Medicine Physician1023125176
  30. Richy Agajanian, M.D.Hematology & Oncology Physician1922116664
  31. Ernest Agatstein, MDUrology Physician1952386583
  32. Tykisha AgeeBehavior Technician1912676529
  33. Janet Agu, NPPsychiatric/Mental Health Nurse Practitioner1982983508
  34. Elizabeth AguilaCommunity Health Worker1902384456
  35. Ashley AguilarBehavior Technician1114852142
  36. David Aguilar, M.D.Pediatrics Physician1730291287
  37. Emeriee AguilarBehavior Technician1891551933
  38. Stephanie AguilarBehavior Technician1316512056
  39. Yesenia AguilarClinical Social Worker1558510263
  40. Alejandra AguileraBehavior Analyst1922577261
  41. April AguirreBehavior Technician1659128809
  42. Guadalupe Aguirre, FNPFamily Nurse Practitioner1356046148
  43. Hector AguirreBehavior Technician1861039273
  44. Mercedes AguirreDay Training/Habilitation Specialist1003736893
  45. Sarah AguirreProfessional Counselor1164894952
  46. Nakisa AhmadzadehBehavior Technician1225633696
  47. Omar Ahmed, M.D.Anesthesiology Physician1831439231
  48. Sameer Ahmed, M.D.Otolaryngology Physician1225328461
  49. Emily Ahn, O.D.Optometrist1508170390
  50. Shangida Ahsan, MDInternal Medicine Physician1639638463

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.