NPPES file of Aug 9, 2026

Doctors and health care providers in Torrance, CA

8,901 individual NPPES records list a practice address in Torrance, 19th of 812 California cities. The largest group is behavior technician: 1,099, 12% of the city's records, against 18% across California. Page 120 of 179.

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

The 8 largest groups in Torrance

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Torrance in California

  • Rank in California19th of 812 cities by records
  • Share of the state0.9% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups26% of all records

Compared with California as a whole, Torrance has 2.8× the state's share of emergency medicine physician records and 0.39× its share of mental health counselor records.

Providers in Torrance, alphabetically

  1. Vanessa OrtizOccupational Therapist1811665771
  2. Jesus Ortiz GonzalezBehavior Technician1972320190
  3. Ana Cecilia Ortiz-Guerrero, MDNephrology Physician1275776536
  4. Lily Ortiz-PerezBehavior Technician1760360283
  5. Naomi Osada, DDSDentist1295004760
  6. Kazumasa OsatoInternal Medicine Physician1134748015
  7. Masaharu Osato, M.D.Gastroenterology Physician1265470280
  8. Thomas OsbornDentist1407858194
  9. Deborah OsborneMental Health Counselor1225455652
  10. Katrina OsbornePhysical Therapist1649736521
  11. Mark Oseas, D.D.S.Oral and Maxillofacial Surgery (Dentist)1427082999
  12. Yvette Osei-Akosa, MD, MPHFamily Medicine Physician1497311054
  13. Rivy Oseni, NPNurse Practitioner1306140637
  14. Jonathan Osgood, D.O.Emergency Medicine Physician1609137892
  15. Christine Oshea, OTR/LOccupational Therapist1255774071
  16. Yosseph OsherBehavior Technician1942126065
  17. Chelsea Oshimo, MS, OTR/LOccupational Therapist1558839514
  18. Seth Oskie, MDEmergency Medicine Physician1194903450
  19. Chelsea OsorioBehavior Technician1447001235
  20. Jessica OsorioInternal Medicine Physician1457938250
  21. Hamid Ostadaghai, DDSDentist1689948531
  22. Ace OstonioCase Manager/Care Coordinator1437905478
  23. Jeffery Ostriker, M.D.Family Medicine Physician1669482303
  24. Matthew Ostrom, M.D.Clinical Cardiac Electrophysiology Physician1205033073
  25. Janet OsuagwuPsychiatric/Mental Health Nurse Practitioner1811667876
  26. Jacquelyn Osuna, NPFamily Nurse Practitioner1992372650
  27. Kazuo Ota, D.D.S.Dentist1851695639
  28. Steven Ota, D.D.S.General Practice Dentistry1942328190
  29. Anna OuStudent in an Organized Health Care Education/Training Program1326987629
  30. Hideyasu Ouchi, MDPsychiatry Physician1699462184
  31. Ronald Oudiz, M.D.Cardiovascular Disease Physician1316957228
  32. Pawinee Oupala, MTMassage Therapist1891617940
  33. Yasna OuwerkerkRegistered Nurse1043383904
  34. Ellen Overby, MOT, OTR/LPediatric Occupational Therapist1588121347
  35. Emily Overturf, PT, DPTPhysical Therapist1144969346
  36. Bugsu Ovunc, M.D, PHDPediatric Pulmonology Physician1891086088
  37. Chloe OwensBehavior Technician1659144483
  38. Courtney OwensStudent in an Organized Health Care Education/Training Program1669998019
  39. Iris Owens, BCBABehavior Analyst1740705821
  40. Shannon OwensCounselor1790819159
  41. David OwokoleAdult Psychiatric/Mental Health Registered Nurse1124776182
  42. Ray Oyakawa, M.D.Ophthalmology Physician1467541938
  43. Cynthia Lynn Oye-Marquez, RPTPhysical Therapist1972635241
  44. Junko Ozao-Choy, M.D.Surgical Oncology Physician1912165143
  45. Eiji Ozawa, N.D.Naturopath1003939950
  46. Peter OziegbePsychiatric/Mental Health Nurse Practitioner1770753618
  47. Sharon Pabla, PA-CMedical Physician Assistant1043594047
  48. Carmen PachecoBehavior Technician1649810250
  49. Allen Pachtman, M.D.Internal Medicine Physician1225110802
  50. Ashley PadillaSpeech-Language Assistant1811752793

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

Torrance, California appears in the CMS National Plan and Provider Enumeration System with 8,901 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 Torrance - 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 Torrance 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 Torrance is weighted toward Behavior Technician (1,099 clinicians, followed by Student in an Organized Health Care Education/Training Program with 786 and Marriage & Family Therapist with 433). 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, Torrance reports roughly 22.8 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 Torrance 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 Torrance, CA?

There are 8,901 registered healthcare providers in Torrance, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Torrance?

The most common specialties in Torrance are Behavior Technician, Student in an Organized Health Care Education/Training Program, Marriage & Family Therapist, Physical Therapist, Clinical Social Worker. Behavior Technician has the most providers with 1,099.

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.