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 60 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. Lisa YeeEmergency Medicine Physician1215310321
  2. Wayne Yee, MDRheumatology Physician1851449805
  3. Kathleen Yellen, CRNACertified Registered Nurse Anesthetist1073730537
  4. Audrey Yen, M.D.Anesthesiology Physician1639498074
  5. Richard Yen, MDAnesthesiology Physician1780732610
  6. Edwin Yeo, MDNuclear Medicine Physician1982752820
  7. Henry Yeo, MDFamily Medicine Physician1467500280
  8. Beatris YeranosianDriver1043974926
  9. Sherrie Yhip, MDPediatrics Physician1124199013
  10. Sikeat Yip, PHARM.D.Ambulatory Care Pharmacist1356723142
  11. Carolyn Yocum, PHARM.DPharmacist1457410268
  12. Julie YonemitsuPharmacist1124191341
  13. Hyun Gyu Yoo, DPTPhysical Therapist1386577617
  14. Jun Son Yoo, DDSGeneral Practice Dentistry1053411918
  15. Duk Hwan YoonAcupuncturist1558941740
  16. William Yoon, DOFamily Medicine Physician1770650509
  17. Suzanne YorkLicensed Practical Nurse1215514559
  18. Yeo Youn, MDInternal Medicine Physician1497822498
  19. Aurora Young, PHARM DPharmacist1437427309
  20. Kelly YoungPharmacist1508411539
  21. Lawrence Young, O. D.Optometrist1285858936
  22. Ting Young, MDEmergency Medicine Physician1598814873
  23. Jillan YoussefPharmacist1104189687
  24. Diana Yu, D.O.Pediatrics Physician1790147510
  25. Jack Yu, MDNeuromusculoskeletal Medicine & OMM Physician1518026178
  26. Jannie Yu, PHARM.D.Oncology Pharmacist1588725113
  27. Jerry Yu, MDObstetrics & Gynecology Physician1497826473
  28. Kian-Ti Yu, MDNeurology Physician1972670842
  29. Kim Yu, PHARM.D.Pharmacist1104918374
  30. Linda Yu, PHARM DPharmacist1578648887
  31. Lyndon YuPsychiatry Physician1982285813
  32. Richard Yu, MDOccupational Medicine Physician1376610212
  33. Janeen Yu-Tang, PHARM. DPharmacist1972685444
  34. Bethany YuenBehavior Technician1336000439
  35. Robert Yuhan, MDColon & Rectal Surgery Physician1144397969
  36. Syed Yusuf, M.D.Internal Medicine Physician1427303817
  37. Loess ZablanCertified Registered Nurse Anesthetist1144636937
  38. Rebecca Zachry, NPNurse Practitioner1346317187
  39. Alma ZamoraStudent in an Organized Health Care Education/Training Program1902549264
  40. Isabella Zamora-SoteloAssistant Behavior Analyst1902670102
  41. Claudia Zaragoza, MDFamily Medicine Physician1679640577
  42. Breana ZarateLicensed Vocational Nurse1437730967
  43. Evelyn Zarate-Martinez, MA, CHWCommunity Health Worker1972365229
  44. Zinta ZarinsFamily Medicine Physician1255743167
  45. Grechell Zayas FernandezFamily Nurse Practitioner1316745797
  46. Giselle Zayer, MSW, LCSWMental Health Counselor1467825521
  47. Jessie ZenzenBehavior Technician1780544577
  48. Amy Zhai, M.D.Obstetrics & Gynecology Physician1023451564
  49. Boyang Zhang, LPCCProfessional Counselor1669975793
  50. Mallory Zhang, M.D.Obstetrics & Gynecology Physician1912040726

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.