Terence Gan, MD MPH
Internal Medicine Physician · San Diego, CA
Terence Gan, MD MPH is an internal medicine physician with a practice address in San Diego, California, and NPI 1104087808, issued on Jun 24, 2008. Check the license (California A106013, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Terence Gan
- Credential
- MD MPH
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A106013 CA
Self-reported in NPPES; status is on the state search - Practice location
- 808 4TH Ave Apt 313, San Diego, CA 92101
- Phone
- (626) 485-8622
- Enumerated
- Jun 24, 2008
- Record last updated
- Sep 10, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20110301000170); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 2007
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Terence Gan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A106013Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average internal medicine physician in 2024
779 Medicare Part D claims for 190 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 31 claims were for opioids.
Most prescribed
- Quetiapine Fumarate37 claims
- Pantoprazole Sodium36 claims
- Eliquis31 claims
- Losartan Potassium26 claims
- Levothyroxine Sodium25 claims
- Tamsulosin Hcl23 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.
The MIPS final score for 2023 (Medicare payment program): 88.8 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Ximed Hospitalists, Inc.La Jolla, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Terence Gan among 17,696 internal medicine physician records in California
Terence Gan, MD MPH 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 2008, is newer than 56% of them.
- NPI issued2008 · 56% of these records are older, 40% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2007 · median 2004 among the 11,065 with a school on file
- Record last updated2015 · 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).
961 internal medicine physician records list a practice address in San Diego
They are 961 of the 52,937 NPPES records with a practice address in San Diego, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Diego → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Alicia Benjamin, M.D.San Diego, CA 921011790793040
- John Chau, M.D.San Diego, CA 921011740375070
- Michael Duffy, DOSan Diego, CA 921011851399802
- Brij Gupta, M.D.San Diego, CA 921011174532543
- William Harless, M.D.San Diego, CA 921011366452823
- Paul Hazelbaker, DOSan Diego, CA 921011831106103
- Mark Jabro, M.D.San Diego, CA 921011326058330
- Wayne Kurisu, M.D.San Diego, CA 921011881606309
Common questions
What is Terence Gan, MD MPH's NPI number?
Terence Gan, MD MPH's National Provider Identifier (NPI) is 1104087808, issued on Jun 24, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Terence Gan, MD MPH located?
The NPPES record lists a practice address at 808 4TH Ave Apt 313, San Diego, CA, 92101. Phone: (626) 485-8622. Providers update this record themselves, so call before visiting.
How can I verify Terence Gan, MD MPH's license?
NPPES lists California license number A106013, 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 Terence Gan, MD MPH prescribe under Medicare Part D?
In 2024, Terence Gan, MD MPH had 779 Medicare Part D claims for 190 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Terence Gan, MD MPH's MIPS final score?
The 2023 MIPS final score is 88.8 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.