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 55 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. Deneen RamosAddiction (Substance Use Disorder) Counselor1851021307
  2. Janice Ramos, AODAddiction (Substance Use Disorder) Counselor1073494233
  3. Jessica RamosBehavior Technician1164084356
  4. Justine Franchesca Ramos, OTD, OTR/LOccupational Therapist1184440257
  5. Mayra RamosBehavior Analyst1447800941
  6. Royer RamosBehavior Technician1770095952
  7. Virginia Ramos, N.P.Nurse Practitioner1073776084
  8. Latierra RandleBehavior Technician1255936183
  9. Kamryn RandolphBehavior Technician1265046825
  10. Nicole RandolphAddiction (Substance Use Disorder) Counselor1023953171
  11. Kristin Ransom, APCCMental Health Counselor1881441244
  12. Gedia RashedMental Health Counselor1790245322
  13. Rezoana Rashid, PHARMDPharmacist1861958936
  14. Shannon RasmussenPhysician Assistant1134748080
  15. Byron Rastegari, DOInternal Medicine Physician1912550880
  16. Anita Ravi, M.D.Hospitalist Physician1073887972
  17. Sumeet Rawal, PA-CPhysician Assistant1386073922
  18. Leonard Rawson, M.D.Internal Medicine Physician1700830304
  19. Rosalba RaygozaAddiction (Substance Use Disorder) Counselor1033679394
  20. Angela Raykowski, R.D.Registered Dietitian1801254842
  21. Aybi Rayos ParraBehavior Technician1801498233
  22. Reyna RazoBehavior Technician1922760552
  23. Larissa Razo AlcarazBehavior Technician1972270593
  24. Nestor Robert RazonCertified Respiratory Therapist1669908778
  25. Leslie RazuraHealth & Wellness Coach1356142160
  26. Maricruz Rea, MSWSocial Worker1689231763
  27. Francisco Recalde, MDSpecialist1538309067
  28. Willi Rechler, MD, MPHPediatrics Physician1457987455
  29. Minal Reddy, MDStudent in an Organized Health Care Education/Training Program1295537801
  30. Jacqueline Redeemer, MN, RN, AOCNSClinical Nurse Specialist1356205405
  31. Taylor Register, PTAPhysical Therapy Assistant1679033302
  32. Coryn Reich, CPProsthetist1063609022
  33. Ashley ReidAddiction (Substance Use Disorder) Counselor1164319869
  34. Dorthy ReidNurse Practitioner1285720128
  35. Melanie ReillyHealth & Wellness Coach1063044725
  36. Richard Reilly, LAADCAddiction (Substance Use Disorder) Counselor1164772414
  37. Katharina ReinersBehavior Technician1033765243
  38. Frances Reis, M.D.Pediatrics Physician1265653802
  39. Monserrat RemediosPharmacist1417588328
  40. Wenlin RenAcupuncturist1942524392
  41. Lisa Repp, B.A.Behavior Analyst1497258370
  42. Carlos ResendizBehavior Technician1205770302
  43. Grace Resnik, M.S. CCC-SLPSpeech-Language Pathologist1396555843
  44. Julian Restrepo Castrillon, DDSDentist1164221776
  45. Jennifer Revelo, FNPFamily Nurse Practitioner1831050079
  46. Claudia ReyesDental Assistant1962978494
  47. Janelly Reyes, AMFT 131116Marriage & Family Therapist1306434394
  48. Odalis ReyesBehavior Technician1134796246
  49. Victoria Reyman, R.N.,N.P.,C.N.S.,Gerontology Nurse Practitioner1558683037
  50. Robert Reynoso, DCChiropractor1396810776

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.