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 50 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. Yi ShaoPharmacist1699577544
  2. Faye ShapiroBehavior Technician1568315000
  3. Asha Sharma, MDInternal Medicine Physician1699823666
  4. Jasmine Sharma, M.D.Student in an Organized Health Care Education/Training Program1477999084
  5. Kashyap Sharma, DDSDentist1710480058
  6. Frances Sharpe, MDNeuromusculoskeletal Medicine & OMM Physician1154479020
  7. John Sharpe Jr., MDFamily Medicine Physician1033286935
  8. William Sharra III, MDDermatology Physician1376610246
  9. Amanda ShawLicensed Psychiatric Technician1336876523
  10. Johnathan ShawStudent in an Organized Health Care Education/Training Program1558725952
  11. Kiana ShawCase Manager/Care Coordinator1265368377
  12. Kiara Shaw, LVNLicensed Vocational Nurse1689365629
  13. Matthew Shaw, CRNACertified Registered Nurse Anesthetist1942529649
  14. Candice Shearer, DPTPhysical Therapist1083025738
  15. Paula ShearerNeurology Physical Therapist1053534545
  16. Vivian SheetsAdvanced Practice Midwife1497386346
  17. Lisamarie Shelton, PSYCHOLOGISTGroup Psychotherapy Psychologist1386977445
  18. Stephen Shelton, MDFamily Medicine Physician1295802171
  19. John Shen, MDPhysical Medicine & Rehabilitation Physician1346398336
  20. Tim Shen, M.D.Internal Medicine Physician1134514995
  21. Irma Shenouda, PHARM.D.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1215161682
  22. Jeanne Shepherd, MDPlastic Surgery within the Head & Neck (Otolaryngology) Physician1689741563
  23. Lo-Yee ShiaPharmacist1104365576
  24. Kenji Shibata, DOFamily Medicine Physician1790844371
  25. Philip Shie, D.O.Nuclear Medicine Physician1396765400
  26. Michael Shiffler, MDSurgery Physician1750439725
  27. Julia Shih, DOHospitalist Physician1871121517
  28. Asit Shil, MDGeriatric Medicine (Family Medicine) Physician1629119995
  29. Jae Shim, MDPediatrics Physician1366519274
  30. Gregory Shimizu, MDInternal Medicine Physician1154492130
  31. Esther ShinPhysical Therapy Assistant1598155277
  32. Hong Shin, MDNeurology Physician1255408068
  33. Sung Shin, MDAnatomic Pathology & Clinical Pathology Physician1790833598
  34. Adarsha ShivakumarPsychiatry Physician1235870809
  35. Nancy ShresthaStudent in an Organized Health Care Education/Training Program1770423873
  36. Fengyu Shu, MDHematology & Oncology Physician1598832305
  37. Fabiola Sianturi, MSN, FNPFamily Nurse Practitioner1033313663
  38. Ramanjit Sibia, R.D.Registered Dietitian1588787667
  39. Henry Sideropoulos, Md, MDInternal Medicine Physician1790839736
  40. Sudha Sidhar, MDBody Imaging Physician1912066572
  41. Kelly Sidhpura, M.D.Pediatrics Physician1841599933
  42. Dip Sidhu, MDBody Imaging Physician1053469833
  43. Kamaldeep Sidhu, NPNurse Practitioner1730917527
  44. Daniel SiegelMental Health Counselor1518163096
  45. Maciej Sielski, DDSGeneral Practice Dentistry1598044554
  46. Elaine Sien, PHARM.D.Pharmacist1629120738
  47. Jorge Sierra, R.T.(R)(CT)Computed Tomography Radiologic Technologist1568081842
  48. Rachel SigritzContractor1437449857
  49. Charles Silas, MDEmergency Medicine Physician1245431121
  50. Amila Silva, MDOphthalmology Physician1952459893

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.