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 52 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. Robert SpeaksPsychiatric/Mental Health Nurse Practitioner1770441834
  2. Rebecca Spence DobiasDoula1417329673
  3. Kim Spencer, MDObstetrics & Gynecology Physician1144378969
  4. Marcia Spencer, LMFTMarriage & Family Therapist1285019984
  5. Versha Srivastava, D.O.Pediatrics Physician1972861441
  6. Patricia Ssebakijje, BEHAVIOR TECHNICIANBehavior Technician1376282137
  7. Vallory Staley, PAPhysician Assistant1083781827
  8. Timothy Standon, PA-CPhysician Assistant1700286077
  9. Paul Stanley, DDSDentist1649726688
  10. Krista Stanton-Mouttaki, D.O.Physical Medicine & Rehabilitation Physician1760897995
  11. Yael Steinfeld, NPNurse Practitioner1003975731
  12. Isaac Stephens, MDStudent in an Organized Health Care Education/Training Program1427852334
  13. McCall StephensMarriage & Family Therapist1295151363
  14. Ronald Stephens, CRNACertified Registered Nurse Anesthetist1013118900
  15. Denise Sterling, PTPhysical Therapist1902985369
  16. Katherine Stewart, BCBABehavior Analyst1457883233
  17. Holly StillClinical Social Worker1609163591
  18. Christopher Stookey, MDEmergency Medicine Physician1659429439
  19. Catherine Stotz, PHYSICIAN ASSISTANTPhysician Assistant1487721221
  20. Scott Stoughton, DOEmergency Medicine Physician1851449839
  21. Jackie Stover, PHARM.D.Pharmacist1376800193
  22. Janet StrasshoferPhysical Therapist1609099258
  23. Viera Striez, SPSpeech-Language Pathologist1174727218
  24. Robert Strohbach, D.C.Chiropractor1508003682
  25. Michael Strub, MDUrology Physician1417028440
  26. Darryl StubblefieldAddiction (Substance Use Disorder) Counselor1285211409
  27. Karen Stump, CRNACertified Registered Nurse Anesthetist1467504811
  28. John Stutz, DPMFoot & Ankle Surgery Podiatrist1689733396
  29. Tabitha Stutzman, PTPhysical Therapist1710101050
  30. Karolyna Suarez, M.D.Student in an Organized Health Care Education/Training Program1841670353
  31. Gary Sugimoto, MDFamily Medicine Physician1215004114
  32. David Sugiyama, M.D.Family Medicine Physician1851642771
  33. Laverni Suico, FNP-CFamily Nurse Practitioner1396534335
  34. Michael Sukay, MDNeuromusculoskeletal Medicine & OMM Physician1659430395
  35. Oluranti SuleLicensed Vocational Nurse1861017865
  36. Tanzila SulimanOptometrist1528996121
  37. Yi Yi SunPharmacist1750975876
  38. Chithraleka Sundaramurthy, M.DInternal Medicine Physician1033303953
  39. Sharon Sung, MDAnesthesiology Physician1104985720
  40. Charmaine Sunga, BSN, RNStudent in an Organized Health Care Education/Training Program1770442881
  41. Anujna SunilBehavior Technician1487589552
  42. Emily SuosLicensed Vocational Nurse1952288086
  43. Brady Supriadi, DPTPhysical Therapist1346905841
  44. David Sur, PHARM.DPharmacist1053946061
  45. Krishna Surti, MDBody Imaging Physician1750406286
  46. Nancy Svitek, M.D.Emergency Medicine Physician1205811007
  47. Dexa Swanson, RPHPharmacist1033287743
  48. Jon Swanson, LCSWClinical Social Worker1871790576
  49. Scott Swartz, NPNurse Practitioner1003983875
  50. Theodore Swigart, PH.D.Clinical Psychologist1881188845

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.