Bonnie M. Nowakowski, D.O.
Internal Medicine Physician · Oak Park, IL
Bonnie M. Nowakowski, D.O. is an internal medicine physician with a practice address in Oak Park, Illinois, and NPI 1932403656, issued on Jan 10, 2011. Check the license (Illinois 036-094600, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Bonnie M. Nowakowski
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036-094600 IL
Self-reported in NPPES; status is on the state search - Practice location
- 520 S Maple Ave, Oak Park, IL 60304
- Phone
- (708) 383-9300
- Enumerated
- Jan 10, 2011
- Record last updated
- Jan 10, 2011 (not updated in 15 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 520 S Maple Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jessie Amstadt, RN, AA-SANERegistered Nurse1730995762
- Elizabeth Bassett, CRNACertified Registered Nurse Anesthetist1053717033
- Cynthia Batassa, DPTPhysical Therapist1487186730
Verify Bonnie M. Nowakowski 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 036-094600Check 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 internal medicine physician in 2024
50 Medicare Part D claims for 39 beneficiaries, against an average of 3,176 among the 108,855 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.
Bonnie M. Nowakowski among 7,238 internal medicine physician records in Illinois
Bonnie M. Nowakowski, D.O. is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 53% of them.
- NPI issued2011 · 53% of these records are older, 45% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2011 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
62 internal medicine physician records list a practice address in Oak Park
They are 62 of the 2,307 NPPES records with a practice address in Oak Park, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Oak Park → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sheba Chiplunkar, M.D.Oak Park, IL 603041356374656
- Bernard Coniglio, M.D.Oak Park, IL 603041124085568
- Marie Feldman, MDOak Park, IL 603041841386729
- Janet Forbes, M.D.Oak Park, IL 603041295838779
- Catalina Grija, M.D.Oak Park, IL 603041770793143
- Rita Gupta, M.D.Oak Park, IL 603041922117985
- Mohammad Khan, M.D.Oak Park, IL 603041487653838
- Catherine Koop, M.D.Oak Park, IL 603041851358972
Common questions
What is Bonnie M. Nowakowski, D.O.'s NPI number?
Bonnie M. Nowakowski, D.O.'s National Provider Identifier (NPI) is 1932403656, issued on Jan 10, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Bonnie M. Nowakowski, D.O. located?
The NPPES record lists a practice address at 520 S Maple Ave, Oak Park, IL, 60304. Phone: (708) 383-9300. Providers update this record themselves, so call before visiting.
How can I verify Bonnie M. Nowakowski, D.O.'s license?
NPPES lists Illinois license number 036-094600, 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 Bonnie M. Nowakowski, D.O. prescribe under Medicare Part D?
In 2024, Bonnie M. Nowakowski, D.O. had 50 Medicare Part D claims for 39 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.