Teresa A. Wanczyk, DO
General Practice Physician · Chicago, IL
Teresa A. Wanczyk, DO is a general practice physician with a practice address in Chicago, Illinois, and NPI 1285732198, issued on Sep 21, 2006. Check the license (Illinois 036-065883, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Teresa A. Wanczyk
- Credential
- DO
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- 036-065883 IL
Self-reported in NPPES; status is on the state search - Practice location
- 3414 W Peterson Ave, Chicago, IL 60659
- Phone
- (773) 271-2900
- Enumerated
- Sep 21, 2006
- Record last updated
- Jun 25, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (773) 267-6113
- Medicaid ID
- 036065883 IL
- Medicare enrollment
- Enrolled (PECOS I20100728000691); may accept Medicare assignment
- Medical or professional school
- Midwestern University, Chicago College Of Osteopathic Med, 1980
- Entity
- Type 1 · individual
Also registered at 3414 W Peterson Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Teresa A. Wanczyk in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036-065883Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average general practice physician in 2024
31 Medicare Part D claims, against an average of 3,030 among the 8,395 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.
General Practice Physician providers in Illinois
There are 291 general practice physician records in Illinois.
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Common questions
What is Teresa A. Wanczyk, DO's NPI number?
Teresa A. Wanczyk, DO's National Provider Identifier (NPI) is 1285732198, issued on Sep 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Teresa A. Wanczyk, DO located?
The NPPES record lists a practice address at 3414 W Peterson Ave, Chicago, IL, 60659. Phone: (773) 271-2900. Providers update this record themselves, so call before visiting.
How can I verify Teresa A. Wanczyk, DO's license?
NPPES lists Illinois license number 036-065883, as entered by the provider. 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 Teresa A. Wanczyk, DO prescribe under Medicare Part D?
In 2024, Teresa A. Wanczyk, DO had 31 Medicare Part D claims; the average among general practice physician prescribers was 3,030. 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.