Margaret Rose Li, MD
Rheumatology Physician · Union City, CA
Margaret Rose Li, MD is a rheumatology physician with a practice address in Union City, California, and NPI 1215025317, issued on Oct 11, 2006. Check the license (California A92531, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Margaret Rose Li
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- A92531 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3553 Whipple RD, Union City, CA 94587
- Phone
- (510) 675-2987
- Enumerated
- Oct 11, 2006
- Record last updated
- Feb 16, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (510) 675-2185
- Medicare enrollment
- Enrolled (PECOS I20171027001879); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Stony Brook, School Of Medicine, 1998
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Also registered at 3553 Whipple RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Margaret Rose Li in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A92531Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
16% fewer Medicare Part D claims than the average rheumatology physician in 2024
1,654 Medicare Part D claims for 280 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 69 claims were for opioids.
Most prescribed
- Hydroxychloroquine Sulfate208 claims
- Prednisone199 claims
- Methotrexate106 claims
- Meloxicam89 claims
- Allopurinol86 claims
- Alendronate Sodium77 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 practice group's MIPS final score for 2023 (Medicare payment program): 84.5 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).
Industry payments in 2024: $27.22
1 payment: food and beverage; the largest payer was Abbvie Inc. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- New York UniversityNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Margaret Rose Li among 926 rheumatology physician records in California
Margaret Rose Li, MD 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
- Graduated1998 · median 2003 among the 641 with a school on file
- Record last updated2021 · 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 Union City → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Maedeh VeysehUnion City, CA 945871891256467
- Sarah Gratton, M.D.Vallejo, CA 945891427140052
- Nicole Griffin, MDVallejo, CA 945891750469649
- Hui Pan, MDVallejo, CA 945891477631042
- Peter Rim, M.D.Vallejo, CA 945891730165044
- Mark Roberts, MDVallejo, CA 945891790864585
- Maneesh Singh, M.D.Vallejo, CA 945891225220114
- Wilson Yap, MDVallejo, CA 945891700964541
Common questions
What is Margaret Rose Li, MD's NPI number?
Margaret Rose Li, MD's National Provider Identifier (NPI) is 1215025317, issued on Oct 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Rose Li, MD located?
The NPPES record lists a practice address at 3553 Whipple RD, Union City, CA, 94587. Phone: (510) 675-2987. Providers update this record themselves, so call before visiting.
How can I verify Margaret Rose Li, MD's license?
NPPES lists California license number A92531, 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 Margaret Rose Li, MD prescribe under Medicare Part D?
In 2024, Margaret Rose Li, MD had 1,654 Medicare Part D claims for 280 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Margaret Rose Li, MD's MIPS final score?
The 2023 MIPS final score is 84.5 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.