Andrew J. Gross, M.D.
Rheumatology Physician · San Francisco, CA
Andrew J. Gross, M.D. is a rheumatology physician with a practice address in San Francisco, California, and NPI 1174555981, issued on Jul 6, 2006. Check the license (California A81793, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Andrew J. Gross
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- A81793 CA
Self-reported in NPPES; status is on the state search - Practice location
- 400 Parnassus Ave # A-587, San Francisco, CA 94143
- Phone
- (415) 353-2497
- Enumerated
- Jul 6, 2006
- Record last updated
- Dec 27, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (415) 502-0888
- Medicaid ID
- 00A817930 CA
- Medicare enrollment
- Enrolled (PECOS I20080415000343); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 1996
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Verify Andrew J. Gross in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A81793Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% fewer Medicare Part D claims than the average rheumatology physician in 2024
1,756 Medicare Part D claims for 251 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims. 27 claims were for opioids.
Most prescribed
- Prednisone219 claims
- Hydroxychloroquine Sulfate148 claims
- Methotrexate114 claims
- Mycophenolate Mofetil97 claims
- Omeprazole84 claims
- Famotidine58 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): 91.6 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 3 group practices
- Regents OF The University OF CaliforniaSan Francisco, CA
- Ucsf Medical Group Business ServicesSan Francisco, CA
- University OF California San FranciscoSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Andrew J. Gross among 926 rheumatology physician records in California
Andrew J. Gross, M.D. is one of 926 rheumatology 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 55% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1996 · median 2003 among the 641 with a school on file
- Record last updated2018 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in California
There are 926 rheumatology physician records in California.
All 926 in California → Every provider in San Francisco → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Urmila Bajpai, M.D.San Francisco, CA 941431790932457
- Ann Mary Belek, MDSan Francisco, CA 941431780841197
- Andrew Chan, M.D.San Francisco, CA 941431578667028
- Sharon Chung, MDSan Francisco, CA 941431649393737
- Lindsey Criswell, MDSan Francisco, CA 941431881659290
- John Davis, MD, MPHSan Francisco, CA 941431912962705
- Lianne Gensler, M.D.San Francisco, CA 941431780781369
- Edward Goetzl, MDSan Francisco, CA 941431255396594
Common questions
What is Andrew J. Gross, M.D.'s NPI number?
Andrew J. Gross, M.D.'s National Provider Identifier (NPI) is 1174555981, issued on Jul 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Andrew J. Gross, M.D. located?
The NPPES record lists a practice address at 400 Parnassus Ave # A-587, San Francisco, CA, 94143. Phone: (415) 353-2497. Providers update this record themselves, so call before visiting.
How can I verify Andrew J. Gross, M.D.'s license?
NPPES lists California license number A81793, 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 Andrew J. Gross, M.D. prescribe under Medicare Part D?
In 2024, Andrew J. Gross, M.D. had 1,756 Medicare Part D claims for 251 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Andrew J. Gross, M.D.'s MIPS final score?
The 2023 MIPS final score is 91.6 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.