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 51 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. Claudia SilvaStudent in an Organized Health Care Education/Training Program1174902845
  2. Andrew Simental, PHARM.D.Pharmacist1932200136
  3. Breanna SimentalSocial Worker1215699673
  4. Mohamed Simjee, MDFamily Medicine Physician1871664755
  5. Baba Singh, PSY.D.Clinical Psychologist1720377559
  6. Kulwant Singh, D.O.Urology Physician1720223845
  7. Rajhvir Singh, MDStudent in an Organized Health Care Education/Training Program1235982059
  8. Ruby Singh, DOGeriatric Medicine (Family Medicine) Physician1083766463
  9. Urvashi SinghStudent in an Organized Health Care Education/Training Program1033960190
  10. Anita Sinha, MDPediatrics Physician1891975447
  11. Nikhil SinhaStudent in an Organized Health Care Education/Training Program1518658905
  12. Andrea Sircable, DOFamily Medicine Physician1770622474
  13. Frances Sisnett, PHARM.DPharmacist1912181470
  14. Lilybeth Sistoza, MDInternal Medicine Physician1538172358
  15. Ragu Sivarajan, D.O,.Internal Medicine Physician1902246523
  16. Mark Skinner, ODOptometrist1952339145
  17. Terry Skok, RNPAcute Care Nurse Practitioner1932106697
  18. Nisreen Sloulin, ODOptometrist1881561918
  19. Brandon SmallwoodSocial Worker1477374486
  20. Kyle Smart, DOFamily Medicine Physician1821030057
  21. Richard Smiley, ODOptometrist1740357516
  22. Bobby Smith, CHIROPRACTORRehabilitation Chiropractor1114137742
  23. Chandra Smith, M.S.Speech-Language Pathologist1255757878
  24. Christine Smith, LCSWClinical Social Worker1750585808
  25. Elizabeth Smith, MDFamily Medicine Physician1457409237
  26. Garran SmithCounselor1821408949
  27. Jacqueline SmithClinical Social Worker1912287996
  28. Jennifer Smith, NPNurse Practitioner1447327283
  29. Jonathan Smith, D.O.Student in an Organized Health Care Education/Training Program1669867115
  30. Ronald Smith, PH.D.Clinical Psychologist1902945496
  31. Terence SmithPeer Specialist1801409081
  32. Tiffany Smith, MASSAGE THERAPISTMassage Therapist1609798149
  33. Vianey Smith, AMFTMarriage & Family Therapist1417436163
  34. Howard Snyder, ODOptometrist1992922462
  35. Stephanie SoeBehavior Technician1134089923
  36. Catherine Soeung, M.D.Child & Adolescent Psychiatry Physician1154885176
  37. Helen Sogioka, PHARM DOncology Pharmacist1780747048
  38. William Sohn, M.D.Urology Physician1467781583
  39. Cindy SolaresRegistered Nurse1164278933
  40. Christopher Solis, PSYCHIATRIC TECHNICILicensed Psychiatric Technician1558167528
  41. Mayrinor Soliven, NPFamily Nurse Practitioner1588405716
  42. Briana SomontanMarriage & Family Therapist1689504284
  43. Chang-Ho Song, MDObstetrics & Gynecology Physician1578611455
  44. Yiping Song, D.D.S.General Practice Dentistry1346481926
  45. Stacy SoriaDoula1033938576
  46. Keturah SorrellsStudent in an Organized Health Care Education/Training Program1679360135
  47. Jasmine Sosa, PHARMDPharmacist1962142471
  48. Heaven SotoBehavior Technician1710832779
  49. Jasmin Soto, GRNACertified Registered Nurse Anesthetist1588133193
  50. Lisa Sparks, NPFamily Nurse Practitioner1780210989

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.