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 13 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. Alyssa ArgumanizBehavior Technician1275409336
  2. Michelle ArgumedoCase Manager/Care Coordinator1982559522
  3. Abraham Argun, PSY.Psychologist1093711749
  4. Dawn Arias, MOTRLOccupational Therapist1700096534
  5. Debbie AriasCounselor1902080039
  6. Ilsa Arias, REGISTERED DIETITIANRegistered Dietitian1902688849
  7. Mayra AriasHealth Service Psychologist1457293284
  8. Nayeli AriasBehavior Technician1326725177
  9. Nethania AriasMarriage & Family Therapist1942179833
  10. Serina AriasBehavior Technician1568347524
  11. Vicente AriasNurse Practitioner1831771955
  12. Itzel Arias SolisBehavior Technician1033084108
  13. Alexandra AringerPeer Specialist1437742814
  14. Vanessa ArispuroBehavior Technician1962322313
  15. Jessica Arizmendi De La TorreStudent in an Organized Health Care Education/Training Program1104767920
  16. Shervin Arjomand, MDStudent in an Organized Health Care Education/Training Program1275481467
  17. Arshia ArjomandiStudent in an Organized Health Care Education/Training Program1912849100
  18. Dana ArlingtonAddiction (Substance Use Disorder) Counselor1417457151
  19. Hazem Armanyos, RDCSSonography Specialist/Technologist Cardiovascular1013260454
  20. Valerie ArmendarizBehavior Technician1336813161
  21. Natalia ArmentaBehavior Technician1225613318
  22. Selina Armenta, RDHAPDental Hygienist1770882854
  23. Burd Armor, MDFamily Medicine Physician1851449680
  24. Ayannah ArmsteadSocial Worker1811520711
  25. Alyssa Armstrong, CNMAdvanced Practice Midwife1770359754
  26. Cynthia ArmstrongBehavior Technician1609701697
  27. Melissa ArmstrongSocial Worker1659663631
  28. Brooke ArnellMarriage & Family Therapist1629926969
  29. Kimberly Arnett, FNPPrimary Care Nurse Practitioner1063887495
  30. Zena ArnoldNursing Home Administrator1003573569
  31. Keri ArnspargerBehavior Technician1457124307
  32. Jagmeet AroraStudent in an Organized Health Care Education/Training Program1003649971
  33. Maninder Arora, MDNeurology with Special Qualifications in Child Neurology Physician1922171644
  34. Rajan Preet Arora, MDNeurology Physician1588028377
  35. Jasmine Arreaga BonillaBehavior Technician1174276356
  36. Precious ArreazaPeer Specialist1457984429
  37. Alicia ArredondoPeer Specialist1083704894
  38. Beatriz Arredondo, BABehavior Analyst1336747005
  39. Jocelyn ArredondoBehavior Technician1811645807
  40. Sally ArrellanesCounselor1295973402
  41. Daisy ArreolaMental Health Counselor1205772860
  42. Virginia ArreolaMarriage & Family Therapist1467107946
  43. Lidia Arreola BecerraBehavior Technician1932936689
  44. Cesareo Arreola SaldanaBehavior Technician1124951942
  45. Alondra ArriagaBehavior Technician1881455004
  46. Valerie ArriagaRehabilitation Practitioner1255222139
  47. Genevieve Arrieta, NONEBehavior Technician1952971103
  48. Joe ArringtonCommunity Health Worker1003457987
  49. Kristin ArringtonStudent in an Organized Health Care Education/Training Program1649134438
  50. Lori ArringtonCommunity Health Worker1285275156

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.