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 13 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. Bonnie Cheng Chien, PHARMDPharmacist1205902160
  2. Stephanie CheonAcupuncturist1487573770
  3. Evelyn Cheung, MDDermatology Physician1164797312
  4. Mabel Cheung, O.D.Optometrist1912308487
  5. Jayme Chew, DCChiropractor1326808940
  6. Barry Chiang, DDSEndodontics1578962304
  7. Kevin Chiang, PHARM.D., MBAPharmacist1689339202
  8. Lisa Chiang, M.D.Infectious Disease Physician1215097076
  9. Bob Chien, PHARM.D.Pharmacist1851763221
  10. Chyna ChinBehavior Technician1710650866
  11. Betty Chin WongPharmacist1821629734
  12. Deanna ChircoPhysician Assistant1487678405
  13. Andrea Fernanda Cortes ChirinoHealth Educator1134929078
  14. Ashley Chismark, LCSWClinical Social Worker1689525818
  15. Shin Chiu, M.D.Specialist1851323794
  16. Terence Chiu, MDGastroenterology Physician1427083229
  17. Brandon Cho, MSW, CWCHealth & Wellness Coach1104705557
  18. Janet ChoClinical Social Worker1275062887
  19. Joanne Cho, PHARMDPharmacist1538510607
  20. Traci Cho, PHARM DPharmacist1447881222
  21. Wan-Hee ChoAmbulatory Care Registered Nurse1043744261
  22. Jihun Choe, PHARM.DPharmacist1053942177
  23. Karis Choe, OTR/LOccupational Therapist1558031187
  24. Roy ChoeBehavior Technician1083210892
  25. Rebecca Chohlas-Wood, MDGeneral Practice Physician1700267465
  26. Annie Choi, OTR/LOccupational Therapist1821436585
  27. Choon Choi, PHARM DPharmacotherapy Pharmacist1306481700
  28. Joon Eon ChoiDentist1881849321
  29. Julia Choi, DMDOrthodontics and Dentofacial Orthopedics Dentistry1649409855
  30. Marvin Choi, PHARM.D.Pharmacist1457774614
  31. Thomas Choi, M.D.Ophthalmology Physician1477555985
  32. Anwina Choknumtumnukit, DPTPhysical Therapist1184290033
  33. Manuel Chon, M.D.Obstetrics & Gynecology Physician1568478725
  34. Andrew Chong, M.D.General Practice Physician1114451598
  35. Kim Chong, M.D.Internal Medicine Physician1316124431
  36. Sue Chong, PHARMDPharmacist1295368827
  37. Sheree Chou, PHARM.D.Pharmacist1811010820
  38. Hoeung Chov, DPMPodiatrist1194826024
  39. Claire Chow, PMHNPPsychiatric/Mental Health Nurse Practitioner1841140514
  40. Allison ChowdhuryOptician1891468401
  41. Kristy ChristensenPhysical Therapy Assistant1669727319
  42. Snowy ChristianPharmacist1740119817
  43. Allen Chu, DDSOral and Maxillofacial Surgery (Dentist)1003498346
  44. Eugene Chu, MDFacial Plastic Surgery Physician1972649580
  45. Remy Chu, MHA, OTR/L, CBISOccupational Therapist1588190144
  46. Jane Chun, PHARMDPharmacist1689233041
  47. Amy ChungBehavior Technician1215406087
  48. Katherine Chung, MDStudent in an Organized Health Care Education/Training Program1346944691
  49. Kathy ChungOccupational Therapy Assistant1598131229
  50. Mee ChungPharmacist1548708639

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.