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 86 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. Sidra IslamStudent in an Organized Health Care Education/Training Program1780561225
  2. Tasnim IslamBehavior Technician1780281253
  3. Denise Island, LVNLicensed Vocational Nurse1780924852
  4. Alejandra IslasBehavior Technician1518736529
  5. Rebecca IslasBehavior Technician1376378935
  6. Dunia IsmailPharmacist1245584929
  7. Christian IspeckyAddiction (Substance Use Disorder) Counselor1033940333
  8. Imaan Issa, PHARMD, RPHPharmacist1518773845
  9. John Itamura, MDOrthopaedic Surgery Physician1164476719
  10. Alan Itano, DDSDentist1871789776
  11. Caitlin Ito, MA, OTR/LOccupational Therapist1710357876
  12. Ashley Itzhakian, PH.D.Psychologist1477987865
  13. Dakota IversonOccupational Therapy Assistant1316573637
  14. Paul Iwahashi, RNPsychiatric/Mental Health Registered Nurse1184146425
  15. Carly Iwasa, LAC.Acupuncturist1760298137
  16. Shunpei Iwata, M.D.Internal Medicine Physician1396931309
  17. Silvia IxtepanBehavior Technician1104617885
  18. Kriti IyerBehavior Analyst1457068942
  19. Alejandra IzaguirreHealth Service Psychologist1457971459
  20. Katrin IzumiOccupational Therapist1306103817
  21. Nahid JabalameliRehabilitation Practitioner1265660088
  22. Corinne JabbaStudent in an Organized Health Care Education/Training Program1013804236
  23. Marcia Jablon, MDInternal Medicine Physician1477640332
  24. Julia JackmanStudent in an Organized Health Care Education/Training Program1417791013
  25. Aaron JacksonRehabilitation Practitioner1588146724
  26. Alexander JacksonRehabilitation Practitioner1932334505
  27. Allwyne JacksonRehabilitation Practitioner1518280494
  28. Brittany JacksonPhysician Assistant1376971457
  29. Charmaine Jackson, LCSWClinical Social Worker1407181712
  30. Cynthia Jackson, PHDClinical Psychologist1235185653
  31. Demara JacksonRehabilitation Counselor1548538044
  32. Fatima Jackson, BSRehabilitation Practitioner1003437922
  33. Katelyn JacksonStudent in an Organized Health Care Education/Training Program1902733157
  34. Kayla JacksonBehavior Technician1801550462
  35. Kellie JacksonSocial Worker1538604673
  36. Kirstine-Priscille JacksonCase Manager/Care Coordinator1881452902
  37. Leequan JacksonBehavior Technician1851012140
  38. Makalah JacksonStudent in an Organized Health Care Education/Training Program1487575965
  39. Michael Jackson, MFTMental Health Counselor1740478155
  40. Peter Jackson, M.D.Pediatric Adolescent Medicine Physician1366536328
  41. Precioustoni JacksonClinical Social Worker1790250116
  42. Rick Jackson, MFTMarriage & Family Therapist1730682824
  43. Roy Jackson, M.D.Internal Medicine Physician1669424982
  44. Sara Jackson, M.A.Counselor1063681732
  45. Timothy Jackson, M.D.Orthopaedic Surgery Physician1245481266
  46. Joshua Jacobi, M.D.Cardiovascular Disease Physician1710109509
  47. Jamie JacoboBehavior Technician1114505302
  48. Abigail Jacobs, MDSurgery Physician1164112322
  49. Shanna Jacobsen, CCAPPAddiction (Substance Use Disorder) Counselor1609241777
  50. William Jacobson, D.C.Chiropractor1578559795

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.