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 59 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. Wanda Williams, RNRegistered Nurse1700061256
  2. Eileen WilliePsychiatric/Mental Health Registered Nurse1760945851
  3. Lashoun WilsonDoula1992634935
  4. Jill Wing, PA-CPhysician Assistant1457557043
  5. Faith Winston, CNMAdvanced Practice Midwife1639875990
  6. Melanie Wise, MDInternal Medicine Physician1447834841
  7. Kimberly WisserBehavior Technician1407573934
  8. Charlette Withers, CNMAdvanced Practice Midwife1255859914
  9. Joe Wohlmuth, MDInternal Medicine Physician1528116308
  10. Scott Wojtowich, DOInternal Medicine Physician1790833515
  11. Kristina Wolford, LCSWSocial Worker1659872026
  12. Esther Won, MDGeriatric Medicine (Family Medicine) Physician1902973803
  13. Alan Wong, D.O.Emergency Medicine Physician1437461126
  14. Alice Wong, OTR/LOccupational Therapist1184815334
  15. Alson Wong, MDPediatrics Physician1710059043
  16. Beverly Wong, PHARMDPharmacist1861553679
  17. Clement WongPharmacist1326136888
  18. Darryn Wong, DOStudent in an Organized Health Care Education/Training Program1992448401
  19. David Wong, DOFamily Medicine Physician1245247105
  20. Dustin Wong, DOChild & Adolescent Psychiatry Physician1518549328
  21. Eric Wong, MDPediatrics Physician1083781280
  22. Frances Wong, PHARMDPharmacist1417236522
  23. Gary Wong, MDInternal Medicine Physician1255424297
  24. Joyce Wong, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1891935771
  25. Po Wong, PHARM DPharmacist1912288853
  26. Timothy Woo, DPTPhysical Therapist1295219004
  27. Mark WoodRehabilitation Practitioner1770870214
  28. Leslie Woodman-Moore, NURSE PRACTITIONERPediatric Nurse Practitioner1477756435
  29. Teresa Wray, MDObstetrics & Gynecology Physician1891854493
  30. Carolina Wright, LCSWClinical Social Worker1629816970
  31. Cynthia Wright, R.N.Psychiatric/Mental Health Registered Nurse1356780803
  32. Susie Wright, ODOptometrist1285701474
  33. Jun Wu, D.D.S.General Practice Dentistry1750409181
  34. Kristian WuysangFamily Nurse Practitioner1619477817
  35. Junyao Xu, ODOptometrist1003583063
  36. Esma Yacoub, DMDGeneral Practice Dentistry1639830243
  37. Kareem Yahya, MDInternal Medicine Physician1366590390
  38. Jun Yamanishi, MDSurgery Physician1316014137
  39. Pamela Yamanishi, MDInternal Medicine Physician1245307057
  40. Christopher Yan, MDFamily Medicine Physician1457410052
  41. Alberto Yanez, MDFamily Medicine Physician1871660779
  42. Paulino Yanez, MDNeurological Surgery Physician1316095367
  43. Ceeccy Yang, M.D.Obstetrics & Gynecology Physician1780767640
  44. Charlie Yang, MDHematology & Oncology Physician1073680823
  45. Edmond Yang, MDBody Imaging Physician1033286950
  46. Lan Yang, DMDGeneral Practice Dentistry1962539403
  47. Seanna YangStudent in an Organized Health Care Education/Training Program1770424368
  48. Mary Malee YapPhysical Therapist1831678275
  49. Arash Yazdani Arazi, MDFamily Medicine Physician1174705263
  50. Wan Cheng Yeap, M.D.Internal Medicine Physician1326184144

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.