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 32 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. Samuel Irons, DPMPodiatrist1891817870
  2. Robert Isaacs, M.DSpecialist1568682102
  3. Anthovie Iskarous, NURSE PRACTITIONERFamily Medicine Physician1396451274
  4. Ragaa Iskarous, M.D.Family Medicine Physician1215035274
  5. Rex ItchonCertified Registered Nurse Anesthetist1407566912
  6. Oswaldo IturbideHealth & Wellness Coach1386523736
  7. Olga Ivanilova, CMTMassage Therapist1982263349
  8. Natalie IwamiyaPharmacist1144852211
  9. Maryann IzzoAddiction (Substance Use Disorder) Counselor1538389879
  10. Mohammad Raffat Jaber, MDVascular Surgery Physician1407980410
  11. Tomas Andrew JacaAmbulatory Care Registered Nurse1649722091
  12. Joshua JacintoBehavior Technician1316708142
  13. Cha'Ron JacksonBehavior Technician1992352991
  14. Wayne JacksonCase Manager/Care Coordinator1881830974
  15. Liza Jaime, M.D.Obstetrics & Gynecology Physician1629380233
  16. Bea Zergiellane Jaime-LyPsychiatric/Mental Health Registered Nurse1326709627
  17. Sachin Jain, MDInternal Medicine Physician1750540183
  18. Sharon JainMarriage & Family Therapist1184238461
  19. Sharon Jakus-Waldman, M.D.Obstetrics & Gynecology Physician1588767016
  20. Parisa Jalalat, ODOptometrist1184140915
  21. Raimy JamalStudent in an Organized Health Care Education/Training Program1861009011
  22. Rassile JamaleddineBehavior Technician1336884626
  23. Darriann JamesBehavior Technician1942771621
  24. Jeffery JamesCommunity Health Worker1225804354
  25. Monae JandeteRegistered Nurse1295677623
  26. Dimple JaniPharmacist1174079834
  27. Mauro Janoski, MDHematology & Oncology Physician1154386290
  28. Neal Janssen, LCSWClinical Social Worker1417307992
  29. Diana JaraBehavior Technician1396216073
  30. Erica JaraClinical Social Worker1750621918
  31. Rosa JaramilloBehavior Technician1922579606
  32. Guy JassoBehavior Technician1558032524
  33. Sheila JaureguiBehavior Technician1245892868
  34. Imran JavaidStudent in an Organized Health Care Education/Training Program1598515199
  35. Yousif Jawad, P.A.Medical Physician Assistant1780818971
  36. Robert Jecmen, D.D.S.General Practice Dentistry1386864924
  37. Jasmine JeffersonBehavior Technician1609478270
  38. Danyelle JenkinsBehavior Technician1912478694
  39. La Shona Jenkins, DSW, LCSWClinical Social Worker1386398766
  40. Shanika JenkinsBehavior Technician1144791682
  41. Abraham Jeong, DDSGeneral Practice Dentistry1124949722
  42. Debora Jeong, DDSDentist1861271512
  43. Erwin Jeong, PHARM.D.Pharmacist1003913989
  44. Mary Jeong, ACUPUNCTURISTAcupuncturist1831403070
  45. Wang Ji, M.D.Internal Medicine Physician1215253059
  46. Elida JimenezCase Manager/Care Coordinator1386489813
  47. Emily JimenezBehavior Technician1568933000
  48. Guillermina JimenezAddiction (Substance Use Disorder) Counselor1164630976
  49. Jennifer JimenezClinical Social Worker1780109363
  50. Jennifer JimenezRegistered Nurse1528650843

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.