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 55 of 61.
The 8 largest groups in Fontana
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
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
- Christine Tran, M.D.Student in an Organized Health Care Education/Training Program1568817575
- Danny Tran, D.C.Chiropractor1265545859
- Diana Tran, M.D.Obstetrics & Gynecology Physician1114119328
- Dong Tran, MDStudent in an Organized Health Care Education/Training Program1124513437
- Hannah Tran, PHARMDPharmacist1639618291
- Hien-Phuong Tran, PHARM.DPharmacotherapy Pharmacist1437222130
- Jimmy Dung Tran, MDFamily Medicine Physician1487718367
- Kevin Tran, D.M.DGeneral Practice Dentistry1093831893
- Lisa Tran, MDFamily Medicine Physician1366590168
- Loi Tran, DOInternal Medicine Physician1780744979
- Michael Tran, BSRTRegistered Respiratory Therapist1750716957
- Mike Tran, MSN, FNP-BCFamily Nurse Practitioner1902769409
- Minh Tuan Nhu TranStudent in an Organized Health Care Education/Training Program1285321430
- Olivier Tran, PHARM.D.Pharmacist1932536547
- Richard Tran, PHARMDPharmacist1831636158
- Tammy Tran, ODOptometrist1043387806
- Thao Tran, PHARM.D.Pharmacist1821198680
- Thien Tran, CRNACertified Registered Nurse Anesthetist1700946977
- Thuan Tran, MDFamily Medicine Physician1164582367
- Thuy Tran, PHARMDPharmacist1235747742
- Patricia Trantham, MDFamily Medicine Physician1437226354
- Mark Trieger, BABehavior Technician1437611613
- Heidel TrindadRegistered Respiratory Therapist1255819702
- Ha Trinh, PHARMDOncology Pharmacist1356653331
- Jadie Trinh, PHARM.D.Pharmacist1053767103
- Jerry TrinhStudent in an Organized Health Care Education/Training Program1487345351
- Kim Trinh, M.D.Emergency Medicine Physician1063689842
- Matt-Phuoc Trinh, D.M.D.General Practice Dentistry1801008495
- Ashley Trino, PTPhysical Therapist1790088094
- Narendra Trivedi, MDAnesthesiology Physician1134296957
- Vicki TrotterPeer Specialist1275313926
- Michael Trujillo, M.D.Student in an Organized Health Care Education/Training Program1407318348
- Daisy Trujillo GarciaBehavior Technician1568114825
- Hoan-Vu Truong, DMDGeneral Practice Dentistry1811004740
- Jacqueline Truong, O.D.Optometrist1205994050
- Jerome Tsai, MDDiagnostic Radiology Physician1407054430
- Pauline Tsai, MDAllergy Physician1336216357
- Betty Tseng, PHARMDPharmacist1386717163
- Lawrence Tseng, ODOptometrist1679071930
- Faith Tsou, RNRegistered Nurse1225707508
- Shihhui TsouFamily Nurse Practitioner1083009286
- John TuckerDiagnostic Radiology Physician1083814297
- Pranee Tulyathan-Uniat, MDPediatrics Physician1124199161
- Stephen Turay, DOFamily Medicine Physician1457428344
- Cathleen Tures, AUDAudiologist1760541494
- Christina Turner, RDRegistered Dietitian1477027035
- Lorna Turner, MDEmergency Medicine Physician1487702213
- Rosemary Turner, M.S.Marriage & Family Therapist1841722550
- Sarah Turner, M.D.Obesity Medicine (Family Medicine) Physician1083891253
- Stephine Turnipseed, MSWSocial Worker1053103549
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
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.