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 14 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. Dania De RamonPeer Specialist1912772476
  2. Teresa De Roulet, MDFamily Medicine Physician1881892628
  3. Jessica De Santiago, PSY.D.Psychologist1750717880
  4. Flavia De SouzaCounselor1871274647
  5. Aline De Vera, PHARM.D.Pharmacist1922185537
  6. Arif Dean, P.T.Physical Therapist1326264128
  7. Davon DeanMental Health Counselor1154094886
  8. Phyllip Dedden, PHARM.D.Pharmacist1780775478
  9. Bunthan Dee, D.P.MFoot & Ankle Surgery Podiatrist1497887251
  10. Clarissa Dee, PHARMDPharmacist1205992526
  11. Samuel Deguzman, LVNLicensed Vocational Nurse1437811148
  12. Jennifer Dejarnett, PAPhysician Assistant1639295884
  13. Carina Del AlcazarBehavior Technician1962150276
  14. Angelina Del RosarioPhlebotomy Technician1235085697
  15. Jikko Joven Del RosarioOccupational Therapy Assistant1700583721
  16. Vincent Carl Dela CruzCommunity Health Worker1497629190
  17. James Delaney, PAPhysician Assistant1972651982
  18. Kelly Delange, ODOptometrist1285701029
  19. Jose DelgadilloBehavior Technician1760979264
  20. Lisa Delgadillo, LCSWClinical Social Worker1891999033
  21. Victoria Delgadillo, LCSWClinical Social Worker1538363676
  22. Christina DelgadoMental Health Counselor1326727587
  23. Roger Delgado, PH.DClinical Social Worker1407997497
  24. Vanessa DelgadoBehavior Technician1124791835
  25. William Delo, DOFamily Medicine Physician1033286919
  26. Luisa DelucaContractor1932330438
  27. David Denkers, PAPhysician Assistant1104985811
  28. Michelle Denopra, PTPhysical Therapist1558584482
  29. Courtney Derosia, M.S.Marriage & Family Therapist1548600562
  30. Shivani Desai, DOStudent in an Organized Health Care Education/Training Program1184410979
  31. Javier Descalzi, MDNeuromusculoskeletal Medicine & OMM Physician1851450597
  32. Vernell Deslonde, ADMIN AND PPCounselor1154282481
  33. Jordan Devera, MDPsychiatry Physician1336882463
  34. Jasmit Dhaliwal, MDInternal Medicine Physician1235287186
  35. Sabreena Dhami, DOStudent in an Organized Health Care Education/Training Program1356084750
  36. Vivekkumar DhananiPharmacist1306483490
  37. Kamal Dhawan, MDChild & Adolescent Psychiatry Physician1114075025
  38. Pooja Dhillon, MDStudent in an Organized Health Care Education/Training Program1255861522
  39. Aminata DiawaraLicensed Vocational Nurse1912668385
  40. Christine Diaz, M.D.Physical Medicine & Rehabilitation Physician1306032537
  41. Gabriela DiazAddiction (Substance Use Disorder) Counselor1982931929
  42. Rachaell Diaz, DOStudent in an Organized Health Care Education/Training Program1407796527
  43. Raquel DiazBehavior Technician1396598496
  44. Ricardo Diaz, MDAnesthesiology Physician1104975473
  45. Ryan Diaz, PHARMACY TECHNICIANPharmacy Technician1689331340
  46. Gary Dibble, MDInternal Medicine Physician1376602938
  47. David DickeyBehavior Technician1720584733
  48. Abigail Dike, LVNLicensed Vocational Nurse1013624030
  49. Han Dinh, D.O.Psychiatry Physician1891106464
  50. James Dinh, M.D.Hospitalist Physician1104915081

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.