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 158 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. Eric Matsuda, D.C.Chiropractor1003989062
  2. Sierra MatsudoBehavior Technician1548831480
  3. Dezirae MatthewBehavior Technician1801788914
  4. Kajuan MatthewsMarriage & Family Therapist1134703325
  5. Uriah MattiaAddiction (Substance Use Disorder) Counselor1144887431
  6. Lauryn MattsonBehavior Technician1457175903
  7. Edward Matuga, MDObstetrics & Gynecology Physician1003890682
  8. Annmarie MaturinoCase Manager/Care Coordinator1437806759
  9. Heather Mau, MS, ATCLegal Medicine1558765156
  10. Soe Maunglay, MDHematology & Oncology Physician1093864373
  11. Alyssa Maurer, MS, ATCAthletic Trainer1710472683
  12. Timothy MaurerBehavior Technician1134649882
  13. Juan Mauricio, PTPhysical Therapist1558693945
  14. Mahmoud MawardiBehavior Technician1538968128
  15. Kate Maxino, RNRegistered Nurse1275217671
  16. Asia MaxwellRehabilitation Practitioner1033905096
  17. Gregory MaxwellPeer Specialist1780423087
  18. Megan Maxwell Lutz, M.S., L.C.G.C.Genetic Counselor (M.S.)1699052126
  19. Katie MayBehavior Technician1316630650
  20. Laura May, RDRegistered Dietitian1124205984
  21. Tracy MayCommunity Health Worker1316796162
  22. Valerie May-BrownSocial Worker1740956879
  23. Lakesha MayesStudent in an Organized Health Care Education/Training Program1861016917
  24. Alysa MayfieldBehavior Technician1508441015
  25. Lincoln Maynes, MDUrology Physician1124055025
  26. Carlos Mayor Noriega, D.D.S.Dentist1841490703
  27. Mariana MayorgaBehavior Analyst1770094146
  28. Christen Mays, LVNLicensed Vocational Nurse1174060271
  29. Martha Mays, DNP, FNP-BCFamily Nurse Practitioner1538580311
  30. Tanya MaytonRegistered Dietitian1538856711
  31. Anne Mazer, MDOphthalmology Physician1518940436
  32. Lawrence Mazur, DOEmergency Medicine Physician1518015585
  33. Chidozie Mbagwu, M.D., PH.DSpecialist1285769364
  34. Annet Mburu, RNRegistered Nurse1407544430
  35. Whitney Mc Camon, MEDBehavior Technician1346129590
  36. Patrick Mc Gill, PAPhysician Assistant1003964958
  37. McKenna McAbeeSpeech-Language Assistant1861964926
  38. Kristine McAdam, CCC-SLPSpeech-Language Pathologist1639423072
  39. Rebecca McAllisterCounselor1407783343
  40. Tracy McAlpine, CATCAddiction (Substance Use Disorder) Counselor1487238952
  41. Jordan McBrideBehavior Technician1205641594
  42. Karen McBride, MDFamily Medicine Physician1841378395
  43. Montigo McBride, RACAddiction (Substance Use Disorder) Counselor1598619017
  44. Sharyl McBrideCase Manager/Care Coordinator1063139798
  45. Delia McCaffertyDental Assistant1487284709
  46. Andrew McCague, DO, FACOS, FACSSurgery Physician1992903207
  47. Betsy McCalister, L.C.S.W.Clinical Social Worker1730389214
  48. Krystal McCallPeer Specialist1891410924
  49. Mary Lou McCamishAddiction (Substance Use Disorder) Counselor1639291800
  50. Charles McCammon, M.D.Family Medicine Physician1508999715

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.