NPPES file of Aug 9, 2026

Doctors and health care providers in Fontana, CA

3,012 individual NPPES records list a practice address in Fontana, 77th of 812 California cities. The largest group is pharmacist: 227, 8% of the city's records, against 3% across California. Page 56 of 61.

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

Fontana in California

  • Rank in California77th of 812 cities by records
  • Share of the state0.3% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups20.5% of all records

Compared with California as a whole, Fontana has 7.8× the state's share of certified registered nurse anesthetist records and 0.26× its share of behavior technician records.

Providers in Fontana, alphabetically

  1. Roxanne Umanzor-Smiley, PAPhysician Assistant1508914599
  2. Adamma UnakaPsychologist1215408828
  3. Kimberly UnderwoodCommunity Health Worker1437022399
  4. Ly Mey Ung, R.D.Registered Dietitian1215224324
  5. John Uniat, MDInternal Medicine Physician1396816211
  6. Karl Urban, MDObstetrics & Gynecology Physician1306913272
  7. Fouzia Usman, M.D.Hospitalist Physician1265966873
  8. Kenneth UwaomaPsychiatric/Mental Health Nurse Practitioner1821980442
  9. Payal Vaghashia, DOStudent in an Organized Health Care Education/Training Program1992556625
  10. Mary ValdezPeer Specialist1407518079
  11. Clarisse Valencia, M.D.Family Medicine Physician1396126728
  12. Enrrique ValenciaInterpreter1356153902
  13. Steven Valenti, MDAddiction Medicine (Internal Medicine) Physician1487713137
  14. Nisha ValenzuelaLicensed Psychiatric Technician1619799905
  15. Sandra Valenzuela, NP-CNurse Practitioner1356657993
  16. Stephanie Valenzuela, MDAnesthesiology Physician1932360971
  17. Erven Vallero, PAPhysician Assistant1073672796
  18. Sheila Vanallen, PTPhysical Therapist1003032905
  19. Leslie Vandover, R.N., FNP-CRegistered Nurse1598127755
  20. Adrina VargasDoula1821911041
  21. Laura Vargas, MDFamily Medicine Physician1982915468
  22. Pedro VargasAdult Companion1932068079
  23. Reuben VargheseStudent in an Organized Health Care Education/Training Program1629760608
  24. Susan Varghese, MDPediatrics Physician1528378833
  25. Miten Vasa, M.D.Rheumatology Physician1972769792
  26. Jonathan Vasquez, MSMarriage & Family Therapist1699016006
  27. Julie VasquezLicensed Vocational Nurse1831064195
  28. Marco VasquezRegistered Dietitian1902169451
  29. Prasit Vassantachart, MDInternal Medicine Physician1932268596
  30. Demetra VaughanSocial Worker1740720762
  31. Priscilla Vaughn, FNPFamily Nurse Practitioner1679373963
  32. Neal Vavra, DDSGeneral Practice Dentistry1992721302
  33. Aldo VazquezAthletic Trainer1891465209
  34. Berenice Vazquez, FNPFamily Nurse Practitioner1861854846
  35. Daisy VazquezBehavior Technician1760148654
  36. Citlalli Vazquez ReyesSocial Worker1295158152
  37. Mark VelascoBehavior Technician1235622838
  38. Ryan Velasco, RRTRegistered Respiratory Therapist1730709197
  39. Miguel Velasco-Ceja, MSW; ACSWClinical Social Worker1053143271
  40. Zulema Velazquez, MAMarriage & Family Therapist1013347236
  41. Ricardo Velez-HernandezFamily Medicine Physician1639099278
  42. Gilbert VeluzPhysical Therapy Assistant1407724040
  43. Edward Vera, D.M.D.Dentist1033468368
  44. Hermina Verde, M.D.Internal Medicine Physician1104885607
  45. Johanna Verduzco, LVNLicensed Practical Nurse1790434363
  46. Noel Victor, MDSurgery Physician1437218195
  47. Rosalind VictorRegistered Nurse1275276685
  48. Olga Vicuna, MSWSocial Worker1851096952
  49. Irma VidalesCommunity Health Worker1497549869
  50. Katie Viehmann-Wical, MPH, MCHES, RCP, RRTHealth Educator1023542552

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

Fontana, California appears in the CMS National Plan and Provider Enumeration System with 3,012 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 Fontana - 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 Fontana 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 Fontana is weighted toward Pharmacist (227 clinicians, followed by Family Medicine Physician with 198 and Student in an Organized Health Care Education/Training Program with 193). 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, Fontana reports roughly 7.7 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.

Of California's most common specialties, Mental Health Counselor is the most prominent one with no provider currently listing a Fontana practice address, a coverage gap Fontana patients typically fill by traveling to a larger nearby hub.

For Fontana 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 Fontana, CA?

There are 3,012 registered healthcare providers in Fontana, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Fontana?

The most common specialties in Fontana are Pharmacist, Family Medicine Physician, Student in an Organized Health Care Education/Training Program, Behavior Technician, Internal Medicine Physician. Pharmacist has the most providers with 227.

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.