Gary P. Fontan, MD
Family Medicine Physician · Chino Hills, CA
Gary P. Fontan, MD is a family medicine physician with a practice address in Chino Hills, California, and NPI 1760482731, issued on Jul 29, 2005. Check the license (California A39054, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gary P. Fontan
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A39054 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2140 Grand Ave, Chino Hills, CA 91709
- Phone
- (909) 630-7875
- Enumerated
- Jul 29, 2005
- Record last updated
- Mar 7, 2023
- Fax
- (909) 630-7876
- Medicare enrollment
- Enrolled (PECOS I20031210001159); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
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Verify Gary P. Fontan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A39054Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average family medicine physician in 2024
7,136 Medicare Part D claims for 542 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 621 claims were for opioids.
Most prescribed
- Atorvastatin Calcium391 claims
- Hydrocodone-Acetaminophen314 claims
- Losartan Potassium277 claims
- Levothyroxine Sodium218 claims
- Amlodipine Besylate206 claims
- Lisinopril179 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupClaremont, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gary P. Fontan among 17,133 family medicine physician records in California
Gary P. Fontan, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1997 · median 2005 among the 10,652 with a school on file
- Record last updated2023 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 family medicine physician records list a practice address in Chino Hills
They are 23 of the 774 NPPES records with a practice address in Chino Hills, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Chino Hills → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Saman Aboudi, MDChino Hills, CA 917091831112820
- Ryan Agena, MDChino Hills, CA 917091891877395
- Tiffany Anderson Terrell, DOChino Hills, CA 917091629188404
- Carlos Baez, MDChino Hills, CA 917091225038961
- Ashish Bhalla, MDChino Hills, CA 917091184701104
- Benny Guzman, M.D.Chino Hills, CA 917091710988035
- Ofelia Narvasa, M.D.Chino Hills, CA 917091558404558
- Erik Olsen, MDChino Hills, CA 917091639121015
Common questions
What is Gary P. Fontan, MD's NPI number?
Gary P. Fontan, MD's National Provider Identifier (NPI) is 1760482731, issued on Jul 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gary P. Fontan, MD located?
The NPPES record lists a practice address at 2140 Grand Ave, Chino Hills, CA, 91709. Phone: (909) 630-7875. Providers update this record themselves, so call before visiting.
How can I verify Gary P. Fontan, MD's license?
NPPES lists California license number A39054, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gary P. Fontan, MD prescribe under Medicare Part D?
In 2024, Gary P. Fontan, MD had 7,136 Medicare Part D claims for 542 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
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.