NPPES file of Aug 9, 2026

Doctors and health care providers in Pasadena, CA

10,525 individual NPPES records list a practice address in Pasadena, 13th of 812 California cities. The largest group is behavior technician: 1,617, 15% of the city's records, against 18% across California. Page 10 of 211.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Pasadena in California

  • Rank in California13th of 812 cities by records
  • Share of the state1.1% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups34.4% of all records

Compared with California as a whole, Pasadena has 6.2× the state's share of rehabilitation practitioner records and 0.51× its share of general practice dentistry records.

Providers in Pasadena, alphabetically

  1. Claudia AriasCase Manager/Care Coordinator1518687094
  2. Jessica AriasMental Health Counselor1801313754
  3. Clarissa Arias AndradeBehavior Technician1871202648
  4. Henry Aristizabal PerdomoDay Training/Habilitation Specialist1780250639
  5. Adolfo ArjonaRehabilitation Practitioner1861196040
  6. Jason ArkinClinical Psychologist1013200583
  7. Sevil Arli, PSY.D.Clinical Psychologist1255833307
  8. Lenes ArmelinAddiction (Substance Use Disorder) Counselor1467116202
  9. Lea Armendariz, PTPhysical Therapist1427327147
  10. Alberto ArmentaRehabilitation Practitioner1902231061
  11. Carolina ArmentaCommunity Health Worker1871361725
  12. Lidi ArmentaRehabilitation Practitioner1245539113
  13. Amanda ArmijosBehavior Technician1053129098
  14. Jimmy Arms, MPA, PA-CPhysician Assistant1427371731
  15. Barbara Armstrong, ODOptometrist1023120367
  16. Clifford ArmstrongRehabilitation Practitioner1659955896
  17. Ellen Armstrong, OTR/LOccupational Therapist1003741778
  18. Elicia Arnold, HOUSING SPECIALISTDay Training/Habilitation Specialist1316750953
  19. Jason Arnold, D.C.Chiropractor1285985689
  20. Victoria ArnottBehavior Technician1780323329
  21. Edgar ArochiAddiction (Substance Use Disorder) Counselor1205686847
  22. Jasmine AroraClinical Social Worker1467887463
  23. Maral Arouchian, M.S., LMFTMarriage & Family Therapist1235364738
  24. Aaron ArredondoCase Manager/Care Coordinator1831840024
  25. Rebecca ArreguinBehavior Technician1467225359
  26. Araceli ArriagaMental Health Counselor1073183877
  27. Aurora ArriagaBehavior Technician1477201184
  28. Brisa ArriagaRehabilitation Practitioner1073095469
  29. Xochil ArriagaBehavior Technician1023716685
  30. Desiree Arrieta Guevara, RNRegistered Nurse1861330052
  31. Carment ArroyoCase Manager/Care Coordinator1508139510
  32. Rebecca ArroyoAudiologist1275231102
  33. Sandra Arroyo, PSY.D.Clinical Psychologist1487608550
  34. Gabriela ArteagaRehabilitation Practitioner1558621862
  35. Jennifer ArteagaRehabilitation Practitioner1538628813
  36. Gayane Arutunian, FNP-CFamily Nurse Practitioner1801663364
  37. Boris Arutyunov, M.D.Hospitalist Physician1144562703
  38. Mariam ArutyunyanMarriage & Family Therapist1538019385
  39. Rosaisela AscencioBehavior Technician1336738442
  40. Aisha AshamuBehavior Technician1962353664
  41. Faye Ashby, MSWMental Health Counselor1932235066
  42. Ann-Margaret Asher, CNPNurse Practitioner1447375712
  43. Roy Ashford, M.D.Orthopaedic Surgery of the Spine Physician1588646368
  44. Mark AshmoreOptician1770743395
  45. Hayden Ashworth, RDAT-1Addiction (Substance Use Disorder) Counselor1679967228
  46. Emond AsiamahBehavior Technician1447913066
  47. Daniel Asimus, M.D., M.S.ED.Psychiatry Physician1205936242
  48. Derek AsimusPhysician Assistant1659738516
  49. A. Askew, PH.D.Clinical Psychologist1497886477
  50. Howard Askins, M.D.Psychiatry Physician1386705713

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

Pasadena, California appears in the CMS National Plan and Provider Enumeration System with 10,525 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 Pasadena - 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 Pasadena 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 Pasadena is weighted toward Behavior Technician (1,617 clinicians, followed by Marriage & Family Therapist with 1,082 and Rehabilitation Practitioner with 924). 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, Pasadena reports roughly 27 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.

For Pasadena 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 Pasadena, CA?

There are 10,525 registered healthcare providers in Pasadena, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Pasadena?

The most common specialties in Pasadena are Behavior Technician, Marriage & Family Therapist, Rehabilitation Practitioner, Student in an Organized Health Care Education/Training Program, Clinical Social Worker. Behavior Technician has the most providers with 1,617.

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.