NPPES file of Aug 9, 2026

Doctors and health care providers in Riverside, CA

13,893 individual NPPES records list a practice address in Riverside, 9th of 812 California cities. The largest group is behavior technician: 3,626, 26% of the city's records, against 18% across California. Page 239 of 278.

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).

Riverside in California

  • Rank in California9th of 812 cities by records
  • Share of the state1.4% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups37.6% of all records
  • Behavior Technician rank9th of the 10 California cities with the most

Compared with California as a whole, Riverside has 5.9× the state's share of peer specialist records and 0.50× its share of physical therapist records.

Providers in Riverside, alphabetically

  1. Joetta Solomon, RNPFamily Nurse Practitioner1083832166
  2. Jonathan SolomonStudent in an Organized Health Care Education/Training Program1003683863
  3. Kingdwayne SolomonBehavior Technician1346709870
  4. Cristina SolorioBehavior Technician1740132315
  5. Evelyn SolorzanoLicensed Psychiatric Technician1891563532
  6. Lucero SolorzanoCounselor1679010292
  7. Shahram Soltanzadeh, M.D.Internal Medicine Physician1700953528
  8. Desiree SolteroBehavior Technician1295376770
  9. Shelia Sombright, RADTAddiction (Substance Use Disorder) Counselor1598549222
  10. Manida SonBehavior Technician1396629424
  11. Albert SongStudent in an Organized Health Care Education/Training Program1477131464
  12. David Song, M.D./PH.DNeurology Physician1679599765
  13. Helen Song, D.D.S.General Practice Dentistry1073764452
  14. Jianing Song, DMDDentist1376420497
  15. Kyungsub Song, L.AC.Acupuncturist1174704548
  16. Margaret Song, MDInternal Medicine Physician1104074814
  17. Stephanie Song, MDRheumatology Physician1710479092
  18. Susrap Song, MDObstetrics & Gynecology Physician1225265754
  19. Joshua SonyBehavior Technician1548113392
  20. Sylvia Soo, M.D.Neurocritical Care Physician1669882130
  21. Kianoush Soofi, DOStudent in an Organized Health Care Education/Training Program1063114759
  22. Steven Sopher, BA, MSMarriage & Family Therapist1063890598
  23. Gayle Sorensen, LCSWClinical Social Worker1992864862
  24. Jacob SorensenBehavior Technician1578486106
  25. Rebeckah Sorensen, O.T.R./LPediatric Occupational Therapist1528251378
  26. Alyssa SoriaSocial Worker1366326514
  27. Leticia SoriaSpeech-Language Assistant1134980410
  28. Yuri Soria, LVNLicensed Vocational Nurse1154964369
  29. Karen Soria CortezBehavior Technician1366013112
  30. Christopher SorianoMarriage & Family Therapist1538822838
  31. Nicole Soriano, RNRegistered Nurse1073097432
  32. Reginald Soriano, PHARMDPharmacist1508114869
  33. Sandra Soriano, RN, BSN, MSN, FNP-CFamily Nurse Practitioner1083137269
  34. Zachary SorianoBehavior Technician1376417519
  35. Fernando Sorto, DOPulmonary Disease Physician1063705788
  36. Aaliyah SosaBehavior Technician1730078791
  37. Adela Sosa, B.A.Case Manager/Care Coordinator1982369534
  38. Emily SosaBehavior Technician1659213742
  39. Gregorio Sosa, PAPhysician Assistant1518119098
  40. Brian Sosa RiosBehavior Technician1699663104
  41. Stephanie Sosa Sanchez-HiralesBehavior Technician1174495527
  42. Araceli Sotelo, RDADental Assistant1184862567
  43. Damaris SoteloBehavior Technician1437934395
  44. Marisol SoteloBehavior Technician1518611219
  45. Gary Sothard, PAPhysician Assistant1881710036
  46. Kristin Sothard, PAPhysician Assistant1306905021
  47. Aileen SotoBehavior Technician1376433425
  48. Alexis SotoOccupational Therapy Assistant1659047918
  49. Arlene SotoBehavior Technician1619634037
  50. Ayelett Soto, BA, SOCIOLOGYRehabilitation Practitioner1780332734

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

Riverside, California appears in the CMS National Plan and Provider Enumeration System with 13,893 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 Riverside - 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 Riverside 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 Riverside is weighted toward Behavior Technician (3,626 clinicians, followed by Marriage & Family Therapist with 912 and Case Manager/Care Coordinator with 689). 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, Riverside reports roughly 35.7 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 Riverside 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 Riverside, CA?

There are 13,893 registered healthcare providers in Riverside, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Riverside?

The most common specialties in Riverside are Behavior Technician, Marriage & Family Therapist, Case Manager/Care Coordinator, Student in an Organized Health Care Education/Training Program, Clinical Social Worker. Behavior Technician has the most providers with 3,626.

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.