Gabriel Martin Ortiz, MD, PHD
Infectious Disease Physician · San Francisco, CA
Gabriel Martin Ortiz, MD, PHD is an infectious disease physician with a practice address in San Francisco, California, and NPI 1831391879, issued on Jun 1, 2007. Check the license (California A95266, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gabriel Martin Ortiz
- Credential
- MD, PHD
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- A95266 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1001 Potrero Ave RM 5H16, San Francisco, CA 94110
- Phone
- (415) 206-8322
- Enumerated
- Jun 1, 2007
- Record last updated
- Apr 30, 2026
- Fax
- (415) 206-8965
- Medicare enrollment
- Enrolled (PECOS I20071020000117); accepts Medicare assignment
- Medical or professional school
- Js Weill Medical College, Cornell University, 2004
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 1,119 in California → Look up another NPI →
Verify Gabriel Martin Ortiz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A95266Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average infectious disease physician in 2024
26 Medicare Part D claims, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D.
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 practice group's MIPS final score for 2023 (Medicare payment program): 91.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- University OF California Sfgh Medical GroupSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gabriel Martin Ortiz among 1,119 infectious disease physician records in California
Gabriel Martin Ortiz, MD, PHD is one of 1,119 infectious disease 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 46% of them.
- NPI issued2007 · 46% of these records are older, 41% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2004 · median 2003 among the 735 with a school on file
- Record last updated2026 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in California
There are 1,119 infectious disease physician records in California.
All 1,119 in California → Every provider in San Francisco → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Paul Baum, MD, PHDSan Francisco, CA 941101154525004
- Henry Chambers III, MDSan Francisco, CA 941101184715773
- Stephanie Cohen, M.D.San Francisco, CA 941101043411317
- Moupali Das, MDSan Francisco, CA 941101801914270
- Monica Gandhi, MDSan Francisco, CA 941101396700019
- Heidi Hopkins, MDSan Francisco, CA 941101487878401
- Peter Hunt, MDSan Francisco, CA 941101730296484
- Sulggi Lee, MD, PHDSan Francisco, CA 941101558541383
Common questions
What is Gabriel Martin Ortiz, MD, PHD's NPI number?
Gabriel Martin Ortiz, MD, PHD's National Provider Identifier (NPI) is 1831391879, issued on Jun 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Gabriel Martin Ortiz, MD, PHD located?
The NPPES record lists a practice address at 1001 Potrero Ave RM 5H16, San Francisco, CA, 94110. Phone: (415) 206-8322. Providers update this record themselves, so call before visiting.
How can I verify Gabriel Martin Ortiz, MD, PHD's license?
NPPES lists California license number A95266, 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 Gabriel Martin Ortiz, MD, PHD prescribe under Medicare Part D?
In 2024, Gabriel Martin Ortiz, MD, PHD had 26 Medicare Part D claims; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.
What is Gabriel Martin Ortiz, MD, PHD's MIPS final score?
The 2023 MIPS final score is 91.9 of 100, reported for the practice group. 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.