HealthcareDiscovery.AI / Doctors / California / Fontana

Doctors in Fontana, California

Data updated monthly · Last refresh September 2026

965 licensed providers practice in Fontana across 87 specialties, and 19% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

965providers

87specialties

19%with industry payments

Specialties in Fontana

Family Medicine in Fontana (197) · 20% received drug or device payments
Internal Medicine in Fontana (111) · 15% received drug or device payments
Pediatrics in Fontana (74) · 23% received drug or device payments
Emergency Medicine in Fontana (55) · 9% received drug or device payments
Obstetrics & Gynecology in Fontana (50) · 12% received drug or device payments
Psychiatry in Fontana (38) · 42% received drug or device payments
Registered Dietitian in Fontana (36) · 0% received drug or device payments
Anesthesiology in Fontana (28) · 11% received drug or device payments
Chiropractor in Fontana (19)
Ophthalmology in Fontana (19)
Surgery in Fontana (16)
Body Imaging in Fontana (14)
Urology in Fontana (14)
Cardiovascular Disease in Fontana (14)
Child & Adolescent Psychiatry in Fontana (14)
Acupuncturist in Fontana (13)
Physical Medicine & Rehabilitation in Fontana (12)
Neonatal-Perinatal Medicine in Fontana (11)
Geriatric Medicine (Family Medicine) in Fontana (11)
Dermatology in Fontana (11)
Gastroenterology in Fontana (11)
Neuromusculoskeletal Medicine & OMM in Fontana (11)
Nephrology in Fontana (10)
Hospitalist in Fontana (9)
Plastic Surgery within the Head & Neck (Otolaryngology) in Fontana (9)
Vascular & Interventional Radiology in Fontana (8)
Hematology & Oncology in Fontana (8)
Rheumatology in Fontana (7)
Pulmonary Disease in Fontana (7)
Neurology in Fontana (7)
Diagnostic Radiology in Fontana (5)
Neurological Surgery in Fontana (5)
Vascular Surgery in Fontana (5)
Critical Care Medicine (Internal Medicine) in Fontana (4)
Surgery of the Hand (Surgery) in Fontana (4)
Occupational Medicine in Fontana (4)
Addiction Medicine (Internal Medicine) in Fontana (4)
Otolaryngology in Fontana (4)
Anatomic Pathology & Clinical Pathology in Fontana (4)
Endocrinology, Diabetes & Metabolism in Fontana (4)
Orthopaedic Surgery in Fontana (4)
Infectious Disease in Fontana (3)
Sleep Medicine (Family Medicine) in Fontana (3)
Nuclear Medicine in Fontana (3)
Rehabilitation Chiropractor in Fontana (3)
Interventional Cardiology in Fontana (3)
Hospice and Palliative Medicine (Family Medicine) in Fontana (3)
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Fontana (3)
Allergy in Fontana (3)
Pediatric Gastroenterology in Fontana (3)
Pediatric Hematology & Oncology in Fontana (2)
Obstetrics in Fontana (2)
Reproductive Endocrinology in Fontana (2)
Gynecologic Oncology in Fontana (2)
Colon & Rectal Surgery in Fontana (2)
Emergency Medical Services (Emergency Medicine) in Fontana (2)
MOHS-Micrographic Surgery in Fontana (2)
Plastic and Reconstructive Surgery in Fontana (2)
Pediatric Rheumatology in Fontana (2)
Adult Reconstructive Orthopaedic Surgery in Fontana (2)
Pediatric Adolescent Medicine in Fontana (1)
Pain Medicine in Fontana (1)
Sleep Medicine (Internal Medicine) in Fontana (1)
Pediatric Anesthesiology in Fontana (1)
Surgical Critical Care in Fontana (1)
Dermatopathology (Pathology) in Fontana (1)
Pediatric Nutrition Registered Dietitian in Fontana (1)
Preventive Medicine/Occupational Environmental Medicine in Fontana (1)
Sports Medicine (Family Medicine) in Fontana (1)
Addiction Medicine (Anesthesiology) in Fontana (1)
Public Health & General Preventive Medicine in Fontana (1)
Pediatric Critical Care Medicine in Fontana (1)
Pediatric Infectious Diseases in Fontana (1)
Pediatric Otolaryngology in Fontana (1)
Sports Medicine (Internal Medicine) in Fontana (1)
Pediatric Surgery in Fontana (1)
Surgical Oncology in Fontana (1)
Geriatric Medicine (Internal Medicine) in Fontana (1)
Sports Medicine (Orthopaedic Surgery) in Fontana (1)
Gynecology in Fontana (1)
Vascular Neurology in Fontana (1)
Pain Medicine (Anesthesiology) in Fontana (1)
Allergy & Immunology in Fontana (1)
Pediatric Endocrinology in Fontana (1)
Obesity Medicine (Family Medicine) in Fontana (1)
Developmental - Behavioral Pediatrics in Fontana (1)
Plastic Surgery in Fontana (1)

Common questions

How many doctors practice in Fontana, California?

965 licensed providers with active NPI records list a practice address in Fontana, according to federal NPPES data refreshed monthly.

How many doctors in Fontana received drug or device company payments?

187 of 965 providers in Fontana (19%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

Where does this data come from?

Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

Other cities in California

All California specialties Ask Zach for help choosing

Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.