Michael Kwark
Rheumatology Physician · Monterey Park, CA
Michael Kwark is a rheumatology physician with a practice address in Monterey Park, California, and NPI 1033798269, issued on Apr 5, 2021. Check the license (California 20A25001, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael Kwark
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 20A25001 CA
Self-reported in NPPES; status is on the state search - Practice location
- 941 S Atlantic Blvd Ste 101, Monterey Park, CA 91754
- Phone
- (626) 458-8401
- Enumerated
- Apr 5, 2021
- Record last updated
- Jun 25, 2026
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Also registered at 941 S Atlantic Blvd Ste 101
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joel Arroyo, M.D.Pulmonary Disease Physician1336167899
Verify Michael Kwark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A25001Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average rheumatology physician in 2024
38 Medicare Part D claims for 21 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.
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.
Michael Kwark among 926 rheumatology physician records in California
Michael Kwark 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 2021, is newer than 98% of them.
- NPI issued2021 · 98% of these records are older, under 1% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2026 · 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 Monterey Park → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Winnie Pang, M.D.Monterey Park, CA 917541962734798
- Ramachandran Srinivasan, M.D.Monterey Park, CA 917541689865503
- Li Yang, M.D.Monterey Park, CA 917541093918112
- Saru Sachdeva, M.D.Ontario, CA 917641841470630
- Emmanuel Katsaros, D.O.Pomona, CA 917661144240961
- Jaffar Tremazi, MDPomona, CA 917671649248782
- Huynh Tran, MD, DPDRosemead, CA 917701649566571
- Kavoos Nazeri, M.D.Rancho Cucamonga, CA 917301477731644
Common questions
What is Michael Kwark's NPI number?
Michael Kwark's National Provider Identifier (NPI) is 1033798269, issued on Apr 5, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Michael Kwark located?
The NPPES record lists a practice address at 941 S Atlantic Blvd Ste 101, Monterey Park, CA, 91754. Phone: (626) 458-8401. Providers update this record themselves, so call before visiting.
How can I verify Michael Kwark's license?
NPPES lists California license number 20A25001, 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 Michael Kwark prescribe under Medicare Part D?
In 2024, Michael Kwark had 38 Medicare Part D claims for 21 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
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.