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 30 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. Joseph Lee, PHARMDPharmacist1598402588
  2. Lauren Lee, M.D.Neonatal-Perinatal Medicine Physician1598992984
  3. Lena Lee, MDPediatrics Physician1235298845
  4. Lenette Lee, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1528375953
  5. Lih Gen (tracy) LeePharmacist1245641687
  6. Lisa Lee, MDOtolaryngology Physician1396956694
  7. Marian Lee, MDPediatrics Physician1902965577
  8. Michael Lee, MDInternal Medicine Physician1366591620
  9. Michelle Lee, PA-CPhysician Assistant1053986117
  10. Nathan Lee, MDOtolaryngology Physician1881223915
  11. Nelson Lee, DC LACAcupuncturist1649376633
  12. Patrick LeeOphthalmology Physician1629455167
  13. Peter LeePharmacist1316486756
  14. Rebekah LeeStudent in an Organized Health Care Education/Training Program1821788704
  15. Ruth Lee, M.D.Hospice and Palliative Medicine (Family Medicine) Physician1699013276
  16. Sarah LeeBehavior Analyst1235601725
  17. Seong Eun Lee, DMDDentist1124712526
  18. Shukyeon LeeMassage Therapist1003580531
  19. Soonhae Lee, MDBody Imaging Physician1437207354
  20. Steve Lee, DORheumatology Physician1336206358
  21. Steven Lee, D.O.Pulmonary Disease Physician1912000829
  22. Sung Lee, MDObstetrics & Gynecology Physician1124195276
  23. Taejun Lee, COTA/LOccupational Therapy Assistant1649672924
  24. Te-Ie Lee, M.D.Internal Medicine Physician1982613931
  25. Tony Lee, MDFamily Medicine Physician1982764189
  26. Edward Lehrman, MDOphthalmology Physician1316014228
  27. Marissa Lehto, LMFTMarriage & Family Therapist1639779861
  28. Olga LeizerovitzGeneral Practice Dentistry1316469885
  29. Jessica LemelleMarriage & Family Therapist1508690496
  30. Ivana LemusBehavior Technician1891661658
  31. Douglas Leo, O.D.Optometrist1215012869
  32. Belen Leong, MDDevelopmental - Behavioral Pediatrics Physician1558413914
  33. John Leong, DOStudent in an Organized Health Care Education/Training Program1851896773
  34. Thomas Leong, PHARMDPharmacist1275626285
  35. Carmela Leonora, MDInterventional Cardiology Physician1972670792
  36. Derek Leung, M.D.Internal Medicine Physician1336560481
  37. Gregory Leung, PAPhysician Assistant1538236377
  38. Kelly Leung, D.O.Family Medicine Physician1811259328
  39. Monica Leung, MDBody Imaging Physician1053469015
  40. Peter Leung, DOFamily Medicine Physician1568669976
  41. Pollyanna LeungPharmacist1720978281
  42. Rita Leung, RDRegistered Dietitian1609045376
  43. Lois LevittCommunity Health Worker1588497275
  44. Benjamin Lew, DOStudent in an Organized Health Care Education/Training Program1578205373
  45. Alisha Lewis, CNMAdvanced Practice Midwife1902202765
  46. Damaris LewisLicensed Vocational Nurse1164087946
  47. Harry Lewis, MDPsychiatry Physician1386703049
  48. Katherine Lewis, PAPhysician Assistant1871641712
  49. Stacy Lewis, CBREHealth Educator1386948883
  50. Margarita Lewis-UptonGerontology Nurse Practitioner1881426476

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.