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 52 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
- Robert SpeaksPsychiatric/Mental Health Nurse Practitioner1770441834
- Rebecca Spence DobiasDoula1417329673
- Kim Spencer, MDObstetrics & Gynecology Physician1144378969
- Marcia Spencer, LMFTMarriage & Family Therapist1285019984
- Versha Srivastava, D.O.Pediatrics Physician1972861441
- Patricia Ssebakijje, BEHAVIOR TECHNICIANBehavior Technician1376282137
- Vallory Staley, PAPhysician Assistant1083781827
- Timothy Standon, PA-CPhysician Assistant1700286077
- Paul Stanley, DDSDentist1649726688
- Krista Stanton-Mouttaki, D.O.Physical Medicine & Rehabilitation Physician1760897995
- Yael Steinfeld, NPNurse Practitioner1003975731
- Isaac Stephens, MDStudent in an Organized Health Care Education/Training Program1427852334
- McCall StephensMarriage & Family Therapist1295151363
- Ronald Stephens, CRNACertified Registered Nurse Anesthetist1013118900
- Denise Sterling, PTPhysical Therapist1902985369
- Katherine Stewart, BCBABehavior Analyst1457883233
- Holly StillClinical Social Worker1609163591
- Christopher Stookey, MDEmergency Medicine Physician1659429439
- Catherine Stotz, PHYSICIAN ASSISTANTPhysician Assistant1487721221
- Scott Stoughton, DOEmergency Medicine Physician1851449839
- Jackie Stover, PHARM.D.Pharmacist1376800193
- Janet StrasshoferPhysical Therapist1609099258
- Viera Striez, SPSpeech-Language Pathologist1174727218
- Robert Strohbach, D.C.Chiropractor1508003682
- Michael Strub, MDUrology Physician1417028440
- Darryl StubblefieldAddiction (Substance Use Disorder) Counselor1285211409
- Karen Stump, CRNACertified Registered Nurse Anesthetist1467504811
- John Stutz, DPMFoot & Ankle Surgery Podiatrist1689733396
- Tabitha Stutzman, PTPhysical Therapist1710101050
- Karolyna Suarez, M.D.Student in an Organized Health Care Education/Training Program1841670353
- Gary Sugimoto, MDFamily Medicine Physician1215004114
- David Sugiyama, M.D.Family Medicine Physician1851642771
- Laverni Suico, FNP-CFamily Nurse Practitioner1396534335
- Michael Sukay, MDNeuromusculoskeletal Medicine & OMM Physician1659430395
- Oluranti SuleLicensed Vocational Nurse1861017865
- Tanzila SulimanOptometrist1528996121
- Yi Yi SunPharmacist1750975876
- Chithraleka Sundaramurthy, M.DInternal Medicine Physician1033303953
- Sharon Sung, MDAnesthesiology Physician1104985720
- Charmaine Sunga, BSN, RNStudent in an Organized Health Care Education/Training Program1770442881
- Anujna SunilBehavior Technician1487589552
- Emily SuosLicensed Vocational Nurse1952288086
- Brady Supriadi, DPTPhysical Therapist1346905841
- David Sur, PHARM.DPharmacist1053946061
- Krishna Surti, MDBody Imaging Physician1750406286
- Nancy Svitek, M.D.Emergency Medicine Physician1205811007
- Dexa Swanson, RPHPharmacist1033287743
- Jon Swanson, LCSWClinical Social Worker1871790576
- Scott Swartz, NPNurse Practitioner1003983875
- Theodore Swigart, PH.D.Clinical Psychologist1881188845
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.