Peter Zigfrid Zadvinskis, M.D.
Rheumatology Physician · Grand Rapids, MI
Peter Zigfrid Zadvinskis, M.D. is a rheumatology physician with a practice address in Grand Rapids, Michigan, and NPI 1043381353, issued on Nov 10, 2006. Check the license (Michigan PZ056351, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Peter Zigfrid Zadvinskis
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- PZ056351 MI
Self-reported in NPPES; status is on the state search - Practice location
- 3271 Clear Vista CT NE, Grand Rapids, MI 49525
- Phone
- (616) 267-7293
- Enumerated
- Nov 10, 2006
- Record last updated
- Apr 25, 2025
- Fax
- (616) 267-9594
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 226 in Michigan → Look up another NPI →
Also registered at 3271 Clear Vista CT NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Emily Addington, PA-CPhysician Assistant1689452575
- Saja Almaaitah, MDRheumatology Physician1073033759
- Bradley Boelkins, M.D.Allergy & Immunology Physician1073908091
- Melissa Brooks, FNPFamily Nurse Practitioner1720263890
- Brett Capel, MDRheumatology Physician1710408000
- Courtney Cotter, DOAllergy & Immunology Physician1023504149
Verify Peter Zigfrid Zadvinskis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license PZ056351Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average rheumatology physician in 2024
4,592 Medicare Part D claims for 619 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 234 claims were for opioids.
Most prescribed
- Prednisone921 claims
- Methotrexate771 claims
- Hydroxychloroquine Sulfate703 claims
- Tramadol Hcl148 claims
- Meloxicam140 claims
- Leflunomide133 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): 100 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: $404.40
23 payments; by number, the most common kind was 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.
Peter Zigfrid Zadvinskis among 226 rheumatology physician records in Michigan
Peter Zigfrid Zadvinskis, M.D. is one of 226 rheumatology physician records with a practice address in Michigan. 80% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 49% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2025 · 58% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Michigan
There are 226 rheumatology physician records in Michigan.
All 226 in Michigan → Every provider in Grand Rapids → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Saja Almaaitah, MDGrand Rapids, MI 495251073033759
- Brett Capel, MDGrand Rapids, MI 495251710408000
- John Fleming, DOGrand Rapids, MI 495251295145803
- Zhe Liang, MDGrand Rapids, MI 495251417478660
- Mohamed Mohamed, MDGrand Rapids, MI 495251861742751
- Barakat Thabet, MDGrand Rapids, MI 495251184979577
- J Uhl, MDGrand Rapids, MI 495251144215476
- Nour Zleik, M.D.Grand Rapids, MI 495251396185534
Common questions
What is Peter Zigfrid Zadvinskis, M.D.'s NPI number?
Peter Zigfrid Zadvinskis, M.D.'s National Provider Identifier (NPI) is 1043381353, issued on Nov 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Peter Zigfrid Zadvinskis, M.D. located?
The NPPES record lists a practice address at 3271 Clear Vista CT NE, Grand Rapids, MI, 49525. Phone: (616) 267-7293. Providers update this record themselves, so call before visiting.
How can I verify Peter Zigfrid Zadvinskis, M.D.'s license?
NPPES lists Michigan license number PZ056351, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Peter Zigfrid Zadvinskis, M.D. prescribe under Medicare Part D?
In 2024, Peter Zigfrid Zadvinskis, M.D. had 4,592 Medicare Part D claims for 619 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Peter Zigfrid Zadvinskis, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 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.