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 187 of 211.

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

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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. Maggie Thomas, LCSWClinical Social Worker1891977807
  2. Marva Thomas, LPCCMarriage & Family Therapist1750739330
  3. Paris ThomasBehavior Technician1427673235
  4. Ryan Thomas, PH.D.Clinical Psychologist1679821433
  5. Shannon Thomas, PSYDPsychologist1851120034
  6. Stanley Thomas, CCAPP, REGISTRANTAddiction (Substance Use Disorder) Counselor1104291079
  7. Sylvia ThomasRehabilitation Practitioner1871721902
  8. Vanessa ThomasRehabilitation Practitioner1710596416
  9. Charla Thompson, LCSWClinical Social Worker1932498078
  10. Claire Thompson, LACAcupuncturist1174351514
  11. Eric ThompsonAddiction (Substance Use Disorder) Counselor1922989219
  12. Griffin ThompsonMarriage & Family Therapist1427544691
  13. Jada Thompson, LMFTMarriage & Family Therapist1538702899
  14. John Thompson, LCSWClinical Social Worker1518241249
  15. Johny ThompsonMarriage & Family Therapist1700123023
  16. Kavon ThompsonStudent in an Organized Health Care Education/Training Program1477440865
  17. Marcus ThompsonRehabilitation Practitioner1982233706
  18. Myrella ThompsonBehavior Technician1437649290
  19. Randy Thompson, BCBABehavior Analyst1780934901
  20. Shyahna ThompsonBehavior Technician1962165563
  21. Tanysha Thompson, B.ABehavior Technician1376374462
  22. Sheila ThorntonClinical Social Worker1902934706
  23. Elizabeth ThorstensonStudent in an Organized Health Care Education/Training Program1689508228
  24. Tonyi Thou-BrownCounselor1477880078
  25. Alexandra ThrashStudent in an Organized Health Care Education/Training Program1750969366
  26. Yin Thu, PHARMDPharmacist1437879020
  27. Barbara Thurn-Tamayo, FNPFamily Nurse Practitioner1760745418
  28. Mackenzie ThurstonStudent in an Organized Health Care Education/Training Program1851915599
  29. Kasalyn Thuvamontolrat, NPAcute Care Nurse Practitioner1396282711
  30. Patrick Thyne, MASTERS DEGREE IN PSMarriage & Family Therapist1801601950
  31. Elsie TibbsBehavior Technician1245997428
  32. Chris Tickner, MA, MFTMarriage & Family Therapist1699793687
  33. Stephanie TiendaBehavior Analyst1730729583
  34. Sela Tiet, PHARM.D.Pharmacist1114477619
  35. Claire Tilem, MDInternal Medicine Physician1710951645
  36. Latoya TillmanBehavior Technician1992325997
  37. Curtis Tillotson, PSY.D.Clinical Psychologist1447541388
  38. Christopher Tiner, MDSpecialist1720095235
  39. Melissa Tines, LCSWMental Health Counselor1942840905
  40. Hsueh-Fang Ting, OTOccupational Therapist1619415858
  41. Julie TinkerAddiction (Substance Use Disorder) Counselor1639707771
  42. Adam TinkhamMarriage & Family Therapist1265238232
  43. Karen Tinsley, LCSWClinical Social Worker1104997246
  44. Abel TionyPsychiatric/Mental Health Nurse Practitioner1497586663
  45. Mindy Tittiger, M.D.Internal Medicine Physician1023350501
  46. Tony Tiu, PA-CPhysician Assistant1083108310
  47. Amy ToOptometrist1558872465
  48. Jamie ToPhysical Therapist1003768821
  49. Trinh To, LVNLicensed Vocational Nurse1215523246
  50. Aleyda TobarBehavior Technician1831083435

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.