Wojciech Zbigniew Grzeskowiak, MD
Family Medicine Physician · Chicago, IL
Wojciech Zbigniew Grzeskowiak, MD is a family medicine physician with a practice address in Chicago, Illinois, and NPI 1972592061, issued on Oct 20, 2005. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Wojciech Zbigniew Grzeskowiak
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- Practice location
- 5370 N Milwaukee Ave, Chicago, IL 60630
- Phone
- (773) 631-0377
- Enumerated
- Oct 20, 2005
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (773) 763-8756
- Medicare enrollment
- Enrolled (PECOS I20110623000698); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 5370 N Milwaukee Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Krystyna Grzeskowiak, DDSGeneral Practice Dentistry1093948697
Verify Wojciech Zbigniew Grzeskowiak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average family medicine physician in 2024
1,577 Medicare Part D claims for 102 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Most prescribed
- Atorvastatin Calcium141 claims
- Lisinopril129 claims
- Gabapentin85 claims
- Metformin Hcl79 claims
- Metoprolol Succinate65 claims
- Amlodipine Besylate49 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.
Wojciech Zbigniew Grzeskowiak among 6,215 family medicine physician records in Illinois
Wojciech Zbigniew Grzeskowiak, MD is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1980 · median 2006 among the 3,714 with a school on file
- Record last updated2007 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,593 family medicine physician records list a practice address in Chicago
They are 1,593 of the 63,379 NPPES records with a practice address in Chicago, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Chicago → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Anna Birn-Forys, M.D.Chicago, IL 606301205949484
- Hyunja Chung, M.D.Chicago, IL 606301790736833
- Beata Danek, MDChicago, IL 606301295788875
- Ebrahim Ghodsizadeh, MDChicago, IL 606301972523892
- Janusz Golec, MDChicago, IL 606301730260324
- Carlos Gomez, M.D.Chicago, IL 606301144327818
- Eugenia Grochowska, MDChicago, IL 606301154302297
- Andrzej Indyk, M.D.Chicago, IL 606301023065984
Common questions
What is Wojciech Zbigniew Grzeskowiak, MD's NPI number?
Wojciech Zbigniew Grzeskowiak, MD's National Provider Identifier (NPI) is 1972592061, issued on Oct 20, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Wojciech Zbigniew Grzeskowiak, MD located?
The NPPES record lists a practice address at 5370 N Milwaukee Ave, Chicago, IL, 60630. Phone: (773) 631-0377. Providers update this record themselves, so call before visiting.
How can I verify Wojciech Zbigniew Grzeskowiak, MD's license?
Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Wojciech Zbigniew Grzeskowiak, MD prescribe under Medicare Part D?
In 2024, Wojciech Zbigniew Grzeskowiak, MD had 1,577 Medicare Part D claims for 102 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.