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 34 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
- Catalina Mann, ADCCase Manager/Care Coordinator1174771307
- Julie Mann, MDNeonatal-Perinatal Medicine Physician1184772121
- Lara Mansour, DOStudent in an Organized Health Care Education/Training Program1780264770
- Nancy ManueliNurse Practitioner1356053698
- Robert Manzo, PAPhysician Assistant1184791931
- Rabia Manzoor, MDPediatric Adolescent Medicine Physician1558422931
- William Mao, PHARMDPharmacist1902979297
- Yiqiong Mao, MDAnatomic Pathology & Clinical Pathology Physician1013065820
- Christine Mapote, LVNLicensed Vocational Nurse1689191561
- Edith Marca-Solomon, CRNACertified Registered Nurse Anesthetist1063639532
- Ann MarcianoMedical Physician Assistant1053715797
- Allison Marcus, LMFTMarriage & Family Therapist1710367289
- Ester Marin, MSWSocial Worker1154142628
- Bernabe Marinduque, M.D.Obstetrics & Gynecology Physician1467414540
- Michael Mark, LA.C, DIPL. O.M.Acupuncturist1508310244
- Amy Marks, CRNACertified Registered Nurse Anesthetist1720289614
- Scott Marnoy, MDGastroenterology Physician1104985779
- Andrew Marquez, LVNLicensed Vocational Nurse1609339969
- Marcus MarquezMarriage & Family Therapist1396343711
- Maria Sheila Marquez, RNPediatric Registered Nurse1720541097
- Anna MarriottAddiction (Substance Use Disorder) Counselor1124440490
- Renee MarriottMarriage & Family Therapist1003244682
- Abigail Martin, R.PHAmbulatory Care Pharmacist1316312002
- Heather Martin Del Campo, M.D.Family Medicine Physician1356790950
- Alina MartinezBehavior Analyst1972236305
- Andrea MartinezClinical Social Worker1336764430
- Erika MartinezBehavior Technician1093448409
- Hector Martinez, CRNACertified Registered Nurse Anesthetist1619194198
- Javier MartinezBehavior Technician1245893346
- Joseph Martinez, DCChiropractor1457995300
- Justin Martinez, CRNACertified Registered Nurse Anesthetist1477022051
- Maria MartinezCommunity Health Worker1952902132
- Mark Martinez, MDFamily Medicine Physician1538236435
- Michelle Martinez, M.S.Marriage & Family Therapist1124182928
- Miguel Martinez, MDFamily Medicine Physician1033472741
- Ricardo MartinezPhysical Therapy Assistant1881051050
- Stephanie Martinez, MDStudent in an Organized Health Care Education/Training Program1437092103
- Miranda Martinez-Moad, DOStudent in an Organized Health Care Education/Training Program1699479089
- Madonna Mashburn, PHARMDPharmacist1043404171
- Tracy Mason, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1467032946
- Joshua MassieLicensed Vocational Nurse1275389405
- Sarabjit Massoun, DDSGeneral Practice Dentistry1386819464
- Dolores Mast, LCSW 63286Clinical Social Worker1992987242
- Lauren Matsumoto, CPNPPediatric Nurse Practitioner1316316946
- Peter Mattar, MDFamily Medicine Physician1417005422
- Michael MatticePeer Specialist1386270270
- Sara MaulLicensed Vocational Nurse1013501956
- Mina Maximous, DOStudent in an Organized Health Care Education/Training Program1609335512
- Idorenyin Mbeke-EkanemRegistered Nurse1043152291
- Offiong Mbeke-Ekanem, RNRegistered Nurse1932066313
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.