Justin Phillip Fong, M.D.
Internal Medicine Physician · San Francisco, CA
Justin Phillip Fong, M.D. is an internal medicine physician with a practice address in San Francisco, California, and NPI 1841346608, issued on Jan 26, 2007. Check the license (California G57883, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Justin Phillip Fong
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G57883 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3060 19TH Ave, San Francisco, CA 94132
- Phone
- (415) 452-3155
- Enumerated
- Jan 26, 2007
- Record last updated
- Sep 1, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (415) 452-9682
- Medicare enrollment
- Enrolled (PECOS I20050707000481); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 1984
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 3060 19TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Suzanna Fong, R.N., M.S.N.Adult Psychiatric/Mental Health Registered Nurse1336337310
Verify Justin Phillip Fong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G57883Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
24% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,428 Medicare Part D claims for 196 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 36 claims were for opioids.
Most prescribed
- Amlodipine Besylate224 claims
- Atorvastatin Calcium125 claims
- Levothyroxine Sodium79 claims
- Amoxicillin-Clavulanate Potass69 claims
- Losartan Potassium65 claims
- Metformin Hcl61 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.
Justin Phillip Fong among 17,696 internal medicine physician records in California
Justin Phillip Fong, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1984 · median 2004 among the 11,065 with a school on file
- Record last updated2009 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,318 internal medicine physician records list a practice address in San Francisco
They are 1,318 of the 38,143 NPPES records with a practice address in San Francisco, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Francisco → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Alishba Ata, DOSan Francisco, CA 941321053873711
- Lawrence Chao, M.D.San Francisco, CA 941321700896370
- Francis Charlton, M.D.San Francisco, CA 941321548339104
- Charles Delatore, M.D.San Francisco, CA 941321679560478
- Andrew Hooker, MDSan Francisco, CA 941321922628114
- Robert Molino, MDSan Francisco, CA 941321407815673
- Robert Napoles, MDSan Francisco, CA 941321700986544
- Frank Primus, M.D.San Francisco, CA 941321366734618
Common questions
What is Justin Phillip Fong, M.D.'s NPI number?
Justin Phillip Fong, M.D.'s National Provider Identifier (NPI) is 1841346608, issued on Jan 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Justin Phillip Fong, M.D. located?
The NPPES record lists a practice address at 3060 19TH Ave, San Francisco, CA, 94132. Phone: (415) 452-3155. Providers update this record themselves, so call before visiting.
How can I verify Justin Phillip Fong, M.D.'s license?
NPPES lists California license number G57883, 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 Justin Phillip Fong, M.D. prescribe under Medicare Part D?
In 2024, Justin Phillip Fong, M.D. had 2,428 Medicare Part D claims for 196 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.