NPPES file of Aug 9, 2026

Doctors and health care providers in Stockton, CA

9,522 individual NPPES records list a practice address in Stockton, 14th of 812 California cities. The largest group is behavior technician: 3,108, 33% of the city's records, against 18% across California. Page 147 of 191.

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

Stockton in California

  • Rank in California14th of 812 cities by records
  • Share of the state1% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups41.9% of all records

Compared with California as a whole, Stockton has 8.9× the state's share of licensed psychiatric technician records and 0.51× its share of internal medicine physician records.

Providers in Stockton, alphabetically

  1. Brenda RossAttendant Care Provider1558985853
  2. Briondi RossBehavior Technician1740055029
  3. Elizabeth Ross, RN, MSN, FNP-CFamily Nurse Practitioner1871598896
  4. Erik RossBehavior Technician1124703210
  5. Janelle RossMental Health Counselor1871775890
  6. Zakery RossBehavior Technician1982449286
  7. Frank Rossi, DDSDentist1760501886
  8. Donald Rossman, M.D.Occupational Medicine Physician1437270477
  9. Sara RostamizadehPsychiatry Physician1518548452
  10. Cheryl Rothe, MS, NCSPSchool Psychologist1588147557
  11. Majid Roubach, M.D.Pediatric Ophthalmology and Strabismus Specialist Physician1639550130
  12. Kelly RoughgardenStudent in an Organized Health Care Education/Training Program1174077614
  13. Michele Rowland-Bird, LCSWClinical Social Worker1649398223
  14. Kiran RoySpeech-Language Pathologist1518881036
  15. Shantel RoyBehavior Technician1487312732
  16. Allison RoybalBehavior Technician1356811871
  17. Linda Roybal, OTR/LOccupational Therapist1710395132
  18. Maria Roybal, LVNLicensed Vocational Nurse1578431821
  19. Lisa RoycePharmacy Technician1992929764
  20. Jolene RoyseBehavior Technician1003670928
  21. Tasha RozaBehavior Technician1194228031
  22. Julieanne RualizoAddiction (Substance Use Disorder) Counselor1811390792
  23. Melissa Jane Rualizo, PT, DPTPhysical Therapist1720941131
  24. Joan Rubinger, FNP-CFamily Nurse Practitioner1043613052
  25. Ariana RubioBehavior Technician1164367868
  26. Joanna RubioBehavior Technician1285197103
  27. Stephanie RubioBehavior Technician1710594536
  28. Gabriella Rubio RoldanMental Health Counselor1972152031
  29. Yajaira Rubio-MendozaStudent in an Organized Health Care Education/Training Program1366944415
  30. Aliyana Ruby-CastroBehavior Technician1720823008
  31. Adelaide RuekgauerStudent in an Organized Health Care Education/Training Program1285217463
  32. Ileana Camila RuelasBehavior Technician1588331847
  33. Iris RuelasAddiction (Substance Use Disorder) Counselor1811558794
  34. Vanessa RuelasBehavior Technician1922692607
  35. Nikole RuelosBehavior Technician1316773260
  36. Kristin Ruffoni, MSSchool Psychologist1174480560
  37. James Ruggles, M.D.Child & Adolescent Psychiatry Physician1245344258
  38. Phillip Ruhl, DOAnesthesiology Physician1033295316
  39. Kathleen Ruhstaller, PTLAPhysical Therapist1922704295
  40. Andrew Ruiz, CADCAddiction (Substance Use Disorder) Counselor1699898064
  41. Angela Ruiz, MSBehavior Technician1255173605
  42. Anthony RuizCommunity Health Worker1508721366
  43. Ashley RuizBehavior Technician1093479719
  44. Belem Ruiz, MFTIMarriage & Family Therapist1508380411
  45. Jacqueline RuizBehavior Technician1740044148
  46. Jenica RuizBehavior Technician1083377428
  47. Katelee RuizBehavior Technician1225743297
  48. Katerina RuizBehavior Technician1457067167
  49. Maria Ruiz, PHARM DPharmacist1700319787
  50. Meliza Ann RuizLicensed Psychiatric Technician1477161396

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

Stockton, California appears in the CMS National Plan and Provider Enumeration System with 9,522 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 Stockton - 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 Stockton 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 Stockton is weighted toward Behavior Technician (3,108 clinicians, followed by Student in an Organized Health Care Education/Training Program with 464 and Mental Health Counselor with 421). 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, Stockton reports roughly 24.4 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 Stockton 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 Stockton, CA?

There are 9,522 registered healthcare providers in Stockton, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Stockton?

The most common specialties in Stockton are Behavior Technician, Student in an Organized Health Care Education/Training Program, Mental Health Counselor, Addiction (Substance Use Disorder) Counselor, Marriage & Family Therapist. Behavior Technician has the most providers with 3,108.

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.