Arjun Rustagi, M.D., PH.D.
Infectious Disease Physician · San Francisco, CA
Arjun Rustagi, M.D., PH.D. is an infectious disease physician with a practice address in San Francisco, California, and NPI 1346635083, issued on Mar 31, 2015. Check the license (California A145156, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Arjun Rustagi
- Credential
- M.D., PH.D.
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- A145156 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4150 Clement St, San Francisco, CA 94121
- Phone
- (415) 221-4810
- Enumerated
- Mar 31, 2015
- Record last updated
- Jul 29, 2026
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 1,119 in California → Look up another NPI →
Also registered at 4150 Clement St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Alison Acerra, MS, RDRegistered Dietitian1992726848
- Sharon AdelsonCounselor1932467271
- Gary Agcaoili, C.T.R.SRecreation Therapist1649284019
Verify Arjun Rustagi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A145156Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 76.5 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).
Arjun Rustagi among 1,119 infectious disease physician records in California
Arjun Rustagi, M.D., PH.D. 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 2015, is newer than 82% of them.
- NPI issued2015 · 82% of these records are older, 14% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- 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
- John Colford, MD, MPH, PHDSan Francisco, CA 941211669485215
- Peter Dull, M.D.San Francisco, CA 941211154401966
- Bryan Greenhouse, MDSan Francisco, CA 941211063561918
- Peter Jensen, M.D.San Francisco, CA 941211598772733
- Yiannis Koullias, MDSan Francisco, CA 941211659752939
- Harry Lampiris, M.D.San Francisco, CA 941211871506758
- Paul Sullam, M.D.San Francisco, CA 941211992807994
- John Szumowski, M.D., M.P.H.San Francisco, CA 941211750558615
Common questions
What is Arjun Rustagi, M.D., PH.D.'s NPI number?
Arjun Rustagi, M.D., PH.D.'s National Provider Identifier (NPI) is 1346635083, issued on Mar 31, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Arjun Rustagi, M.D., PH.D. located?
The NPPES record lists a practice address at 4150 Clement St, San Francisco, CA, 94121. Phone: (415) 221-4810. Providers update this record themselves, so call before visiting.
How can I verify Arjun Rustagi, M.D., PH.D.'s license?
NPPES lists California license number A145156, 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.
What is Arjun Rustagi, M.D., PH.D.'s MIPS final score?
The 2023 MIPS final score is 76.5 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.