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 11 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. Jason Ching, D.D.S.Dentist1992917645
  2. Beverly ChiongFamily Nurse Practitioner1447619804
  3. Paul Vincent ChiongRegistered Nurse1235776972
  4. Seng Chiou, MDPlastic Surgery within the Head & Neck (Otolaryngology) Physician1841361722
  5. Lindsay Chiu, PAPhysician Assistant1972670719
  6. Matthew Chiu, ODOptometrist1356014047
  7. Silas Chiu, M.D.Emergency Medicine Physician1023370525
  8. Chang Cho, MDMOHS-Micrographic Surgery Physician1316006976
  9. Eleanor Cho, MDPain Medicine (Anesthesiology) Physician1841359411
  10. Jane ChoSpeech-Language Pathologist1124659750
  11. Marie Cho, NURSE PRACTITIONERFamily Nurse Practitioner1265562425
  12. Paula Cho, MDNephrology Physician1245399906
  13. Philomena Cho, MDInternal Medicine Physician1821157421
  14. Seonah Cho, MDHospitalist Physician1841495892
  15. Susan Cho, M.D.Child & Adolescent Psychiatry Physician1245459619
  16. Jonathan Chock, MDEmergency Medicine Physician1770650624
  17. Han Tae Choe, OMD (ACUPUNCTURIST)Acupuncturist1952584211
  18. Umber Chohan, M.D.Infectious Disease Physician1942452776
  19. Chul Choi, MDObstetrics & Gynecology Physician1639227416
  20. Sidney ChoiGeneral Practice Dentistry1598134769
  21. Yunyoung Choi, L.AC.Acupuncturist1407215775
  22. Lisa Choi-Flores, MDFamily Medicine Physician1144378035
  23. Andrew Chon, DMDPeriodontics1457707374
  24. Noelle ChongRegistered Nurse1770147894
  25. Phillip Chong, M.D.Pediatrics Physician1093132177
  26. Eric Chou, MDCardiovascular Disease Physician1992876965
  27. Tania Choudhary, MDHospitalist Physician1508354176
  28. Andrew Choung, M.D.Student in an Organized Health Care Education/Training Program1033559976
  29. Lori Chow, MDSurgery Physician1437220464
  30. Ryan Chow, MDStudent in an Organized Health Care Education/Training Program1669121968
  31. Nicole ChoyGenetic Counselor (M.S.)1952985970
  32. Richard ChristensenFamily Nurse Practitioner1912415415
  33. Carl Christiansen, D.C.Chiropractor1134544380
  34. Angelyne ChuPharmacist1144996943
  35. Dana ChuBehavior Technician1417696964
  36. Tony Chu, PHARM. DPharmacist1881970663
  37. Yi Chu, DOStudent in an Organized Health Care Education/Training Program1447993480
  38. Jennifer Chua, PHARMDPharmacist1346613734
  39. James Chui, MDPlastic and Reconstructive Surgery Physician1790800209
  40. Lawrence Chui, PHARMDPharmacist1780278630
  41. Success ChukwuMarriage & Family Therapist1083540298
  42. Jenny Chung, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1700180189
  43. Juna Chung, LCSWClinical Social Worker1255561338
  44. Siu-Keung Chung, M.D.Surgery Physician1295797751
  45. Wynda Chung, MDAnesthesiology Physician1942371869
  46. Yu-Chi Chung, D.D.S.Dentist1548385685
  47. Andy Chuu, MDNephrology Physician1639565286
  48. Giuliana Cilliani, PA-CPhysician Assistant1043504913
  49. Ha Sarreong Cillpame, DPTPhysical Medicine & Rehabilitation Physician1780549311
  50. Iresha Cioco, PMHNPPsychiatry Physician1750176095

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.