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 190 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. Theresa Tran, ODOptometrist1063130979
  2. Tracy TranPharmacist1457765869
  3. Tyler TranOptometrist1922808252
  4. Susan Trautman, OTDOccupational Therapist1497069744
  5. Laura Treister, LCSWClinical Social Worker1427709534
  6. Kevin TrejoRehabilitation Practitioner1700360880
  7. Katharine TrevinoStudent in an Organized Health Care Education/Training Program1275407181
  8. Mikayla Trevino ValentineBehavior Technician1053074567
  9. Jenny Tri, PHARM. DPharmacist1306139571
  10. Christine Triano, LCSWClinical Social Worker1912187816
  11. James Tribe, M.D.Hospitalist Physician1659597334
  12. Cindy TrieuPharmacist1427507490
  13. Emily TrieuRehabilitation Practitioner1215502059
  14. Linda TrieuPharmacist1336699305
  15. Claudia TrillesEmergency Medicine Physician1215678404
  16. Gabriel TrillingRegistered Nurse1366120891
  17. Elizabeth TrinhStudent in an Organized Health Care Education/Training Program1205761988
  18. Kathy Trinh, NPFamily Nurse Practitioner1376136903
  19. Kim TrinhBehavior Technician1285212241
  20. Maria Trinh, PA-CMedical Physician Assistant1023369667
  21. Ngoc TrinhAssistant Behavior Analyst1619727203
  22. Sidney Trinh, AMFTMarriage & Family Therapist1811680564
  23. Kenny Trinidad, PACMedical Physician Assistant1417088469
  24. Sef Tritt, NDNaturopath1154873073
  25. Stephany Tritt, PTPhysical Therapist1013309749
  26. Juanita Trivino, LMFTMarriage & Family Therapist1871739029
  27. Jeffrey TrochezCommunity Health Worker1164286647
  28. Melissa Trochez, LMFTMarriage & Family Therapist1124335864
  29. Kaitlyn TrotterRehabilitation Practitioner1962841106
  30. Anna Trtchounian, MDEmergency Medicine Physician1326543513
  31. Kathryn Truitt, PH.D.Psychologist1598995011
  32. Christopher Trujillo, M.AMarriage & Family Therapist1710029350
  33. Hannah TrujilloBehavior Technician1811563323
  34. Jaquelin TrujilloBehavior Analyst1922718543
  35. Jason Trujillo, NPFamily Nurse Practitioner1487396123
  36. Magdalena Trujillo, MSWMental Health Counselor1649587817
  37. Maria TrujilloRehabilitation Practitioner1215564299
  38. Annelise Trujillo RenyOccupational Therapist1932057007
  39. Danny Truong, N.P.Nurse Practitioner1609235613
  40. John TruongBehavior Technician1750261988
  41. Kacey TruongSocial Worker1780921999
  42. My-Linh Truong, D.O.Family Medicine Physician1245509256
  43. Priscilla Truong, O. D.Optometrist1588853840
  44. Shawny TruongCase Manager/Care Coordinator1568076495
  45. Michael Trythall, AU.D.Audiologist-Hearing Aid Fitter1811177553
  46. James Tsai, D.D.S.Oral and Maxillofacial Surgery (Dentist)1972624997
  47. John Tsai, MDFamily Medicine Physician1033161641
  48. Joseph TsaiStudent in an Organized Health Care Education/Training Program1306682570
  49. Steve Tsai, M.D.Anatomic Pathology & Clinical Pathology Physician1396994778
  50. Vivian TsaiPharmacist1821398918

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.