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 142 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. Susan Riggs, MA, MFT, BCBABehavior Analyst1487945762
  2. Arianna RigopoulosBehavior Technician1730821216
  3. Kristen Riley, RDHDental Hygienist1184275786
  4. Jo RimmerAddiction (Substance Use Disorder) Counselor1316617541
  5. Jessica RinconMental Health Counselor1689130171
  6. Mariah RingBehavior Technician1467277632
  7. Andrea RiosRecreational Therapist Assistant1639757990
  8. Dulce RiosBehavior Technician1942778618
  9. Jesenia RiosBehavior Technician1083470629
  10. Laura RiosBehavior Technician1881371706
  11. Marissa RiosAthletic Trainer1740091891
  12. Melanie RiosBehavior Technician1740941749
  13. Nancy RiosBehavior Technician1164231643
  14. Noe RiosBehavior Technician1477332534
  15. Stefanie RiosMarriage & Family Therapist1659927291
  16. Teri Rios, P.T.Licensed Psychiatric Technician1942323829
  17. Tiffany RiosBehavior Technician1659250579
  18. Hugo RioshernandezDriver1275089252
  19. Jeri RipoylaBehavior Technician1639881188
  20. Jerral RipoylaLicensed Psychiatric Technician1821511700
  21. George Rishwain, M.D.Gastroenterology Physician1598738122
  22. Raymond Rishwain, DDSGeneral Practice Dentistry1497877955
  23. Robert Ritchie, MA, BCBABehavior Analyst1619447851
  24. Adriana Rivas, RNRegistered Nurse1073339602
  25. Madalyn RivasInternal Medicine Physician1447830187
  26. Maira Rivas SanchezDay Training/Habilitation Specialist1184359952
  27. Yulisa Rivas-Olivares, LCSWClinical Social Worker1801445085
  28. Naomi Rivas-RiosBehavior Analyst1629545298
  29. Abbygail RiveraLicensed Psychiatric Technician1285351882
  30. Alexei Rivera, MSWStudent in an Organized Health Care Education/Training Program1629888961
  31. Amy RiveraDay Training/Habilitation Specialist1508986811
  32. Jennifer Rivera, M.D.Family Medicine Physician1871780445
  33. Lilian Rivera, LCSWClinical Social Worker1750059424
  34. Rosie RiveraBehavior Technician1992412498
  35. Pablo Rivera Cruz, SA-CSurgical Assistant1942877303
  36. Ryan RixMarriage & Family Therapist1083117188
  37. Saba Rizvi, M.D.Psychosomatic Medicine Physician1619190501
  38. Mark Rizzolo, DDSDentist1659479608
  39. Eduardo Roa, D.D.S.Dentist1326362641
  40. Isabell Roa RodriguezBehavior Technician1508621673
  41. Helecia RoachBehavior Technician1457820375
  42. Robert RoamMarriage & Family Therapist1881833994
  43. Kathryn RoarkBehavior Technician1184570822
  44. Laura Robbins Rios, MFT 128355Mental Health Counselor1013386580
  45. Alfred RobertsMental Health Counselor1184315277
  46. Chelsey Marie RobertsBehavior Technician1629743828
  47. Edelisa RobertsAddiction (Substance Use Disorder) Counselor1043331671
  48. Jakiea RobertsBehavior Technician1578158135
  49. Jessica RobertsBehavior Technician1396567475
  50. Kimberly Roberts, LVNLicensed Vocational Nurse1164279782

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.