Monica Wei
Rheumatology Physician · Walnut Creek, CA
Monica Wei is a rheumatology physician with a practice address in Walnut Creek, California, and NPI 1417450214, issued on Mar 18, 2018. Check the license (California A189352, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Monica Wei
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- A189352 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1450 Treat Blvd # 200, Walnut Creek, CA 94597
- Phone
- (925) 296-9060
- Enumerated
- Mar 18, 2018
- Record last updated
- Oct 9, 2023
- Medicare enrollment
- Enrolled (PECOS I20231020000234); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Also registered at 1450 Treat Blvd # 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Monica Wei in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A189352Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average rheumatology physician in 2024
673 Medicare Part D claims for 174 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone156 claims
- Methotrexate83 claims
- Hydroxychloroquine Sulfate47 claims
- Colchicine42 claims
- Allopurinol29 claims
- Sulfasalazine23 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): 85.7 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: $2,069.21
87 payments; by number, the most common kind was food and beverage; the largest payer was Amgen 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
- John Muir Physician NetworkWalnut Creek, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Monica Wei among 926 rheumatology physician records in California
Monica Wei 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 2018, is newer than 90% of them.
- NPI issued2018 · 90% of these records are older, 7% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2018 · median 2003 among the 641 with a school on file
- Record last updated2023 · 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 Walnut Creek → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Midori Nishio, M.D.Walnut Creek, CA 945971316010366
- Raul Romea, MDWalnut Creek, CA 945971962408112
- Vandana Sharma, M.D.Walnut Creek, CA 945971528131588
- Rashmi Dixit, M.D.Walnut Creek, CA 945981811990666
- Zuzana Foster, M.D.Walnut Creek, CA 945981184621542
- John Loeb, M.D.Walnut Creek, CA 945981932106390
- Chetachi Okereke, M.D, M.B.B.SWalnut Creek, CA 945961083842199
- Robert Wiskocil, MDWalnut Creek, CA 945981992883094
Common questions
What is Monica Wei's NPI number?
Monica Wei's National Provider Identifier (NPI) is 1417450214, issued on Mar 18, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Monica Wei located?
The NPPES record lists a practice address at 1450 Treat Blvd # 200, Walnut Creek, CA, 94597. Phone: (925) 296-9060. Providers update this record themselves, so call before visiting.
How can I verify Monica Wei's license?
NPPES lists California license number A189352, 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 Monica Wei prescribe under Medicare Part D?
In 2024, Monica Wei had 673 Medicare Part D claims for 174 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Monica Wei's MIPS final score?
The 2023 MIPS final score is 85.7 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.