Minzi Chen, MD
Rheumatology Physician · Woodland, CA
Minzi Chen, MD is a rheumatology physician with a practice address in Woodland, California, and NPI 1922269067, issued on Jun 20, 2008. Check the license (California A118145, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Minzi Chen
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- A118145 CA
Self-reported in NPPES; status is on the state search - Practice location
- 632 W Gibson RD, Woodland, CA 95695
- Phone
- (560) 668-2600
- Enumerated
- Jun 20, 2008
- Record last updated
- Jul 23, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (530) 669-5684
- Medicare enrollment
- Enrolled (PECOS I20120413000134); 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 632 W Gibson RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amr Abdelaty, MDHospitalist Physician1962996348
- Alan Aceves, PACMedical Physician Assistant1912930983
- Clariza Aguillon-Doms, NPNurse Practitioner1174836993
- Sammy Almashat, M.D.Occupational Medicine Physician1194987578
- Khuram Arif, MDPediatrics Physician1851492268
- Irma Bernal, NPFamily Nurse Practitioner1902553878
Verify Minzi Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A118145Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% more Medicare Part D claims than the average rheumatology physician in 2024
2,942 Medicare Part D claims for 434 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.
Most prescribed
- Hydroxychloroquine Sulfate494 claims
- Alendronate Sodium493 claims
- Methotrexate480 claims
- Enbrel Sureclick198 claims
- Prednisone190 claims
- Allopurinol166 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): 96.5 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).
Industry payments in 2024: $917.51
10 payments; by number, the most common kind was food and beverage; the largest payer was Ucb, 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
- Dignity Health Medical FoundationWoodland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Minzi Chen among 926 rheumatology physician records in California
Minzi Chen, 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 2008, is newer than 58% of them.
- NPI issued2008 · 58% of these records are older, 37% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1997 · median 2003 among the 641 with a school on file
- Record last updated2020 · 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 Woodland → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Diana Lau, MDWoodland, CA 956951770506537
- Lei Wang, MDWoodland, CA 956951497173355
- Melissa Schoenwetter, D.O.Vacaville, CA 956871699844019
- Michelle Sit, MDVacaville, CA 956871740269513
- Mark Mansour, M.D.Cameron Park, CA 956821073597241
- Robinder Dhillon, M.D., M.B.A.Rancho Cordova, CA 956701841557477
- Feruza AbraamyanRoseville, CA 956611124769278
- Emilia Banisad, MDRoseville, CA 956611598293276
Common questions
What is Minzi Chen, MD's NPI number?
Minzi Chen, MD's National Provider Identifier (NPI) is 1922269067, issued on Jun 20, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Minzi Chen, MD located?
The NPPES record lists a practice address at 632 W Gibson RD, Woodland, CA, 95695. Phone: (560) 668-2600. Providers update this record themselves, so call before visiting.
How can I verify Minzi Chen, MD's license?
NPPES lists California license number A118145, 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 Minzi Chen, MD prescribe under Medicare Part D?
In 2024, Minzi Chen, MD had 2,942 Medicare Part D claims for 434 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Minzi Chen, MD's MIPS final score?
The 2023 MIPS final score is 96.5 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.