Michael Sadek
Internal Medicine Physician · Oak Park, IL
Michael Sadek is an internal medicine physician with a practice address in Oak Park, Illinois, and NPI 1003445222, issued on Apr 8, 2020. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Michael Sadek
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 184773 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3 Erie CT Ste L700, Oak Park, IL 60302
- Phone
- (708) 763-1222
- Enumerated
- Apr 8, 2020
- Record last updated
- Oct 27, 2023
- Fax
- (708) 763-1471
- Medicare enrollment
- Enrolled (PECOS I20231122003479); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 3 Erie CT Ste L700
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mohammed Ahmed, DOHospitalist Physician1932691672
- Thomas Albert, D.C., M.D.Internal Medicine Physician1457465098
- Sankha Banerjee, MDHospitalist Physician1265939169
- Antonio Barrios, M.D.Internal Medicine Physician1609220276
- Scott Leikin, D.O.Critical Care Medicine (Internal Medicine) Physician1588079479
- Afshan Mohiuddin, MDInternal Medicine Physician1477808053
Verify Michael Sadek 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
78% fewer Medicare Part D claims than the average internal medicine physician in 2024
685 Medicare Part D claims for 211 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 15 claims were for opioids.
Most prescribed
- Pantoprazole Sodium46 claims
- Amlodipine Besylate34 claims
- Metoprolol Tartrate34 claims
- Furosemide32 claims
- Prednisone30 claims
- Atorvastatin Calcium29 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupWoodland Hills, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (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 62 in Oak Park → All 7,238 in Illinois → Every provider in Oak Park →
Other internal medicine physician records in Illinois
- Peter Abadeer, D.O.Bloomington, IL1760469522
- Motaz Abas, MDPeoria, IL1215510201
- Elias Abate, M.D.Chicago, IL1336712199
- Maliha Abbas, D.O.Chicago, IL1174963920
- Zareena Abbas, MDChicago, IL1427078872
- Abu Abbasi, MDChicago, IL1083243877
- Ayesha Abbasi, MDChicago, IL1376216705
- Khalda Abbasi, MDNaperville, IL1487705240
- Elmer Abbo, MDBurr Ridge, IL1710048541
- Paul Abbo, M.D.River Forest, IL1083693378
Common questions
What is Michael Sadek's NPI number?
Michael Sadek's National Provider Identifier (NPI) is 1003445222, issued on Apr 8, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Michael Sadek located?
The NPPES record lists a practice address at 3 Erie CT Ste L700, Oak Park, IL, 60302. Phone: (708) 763-1222. Providers update this record themselves, so call before visiting.
How can I verify Michael Sadek'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 Michael Sadek prescribe under Medicare Part D?
In 2024, Michael Sadek had 685 Medicare Part D claims for 211 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.