Mark Postel, D.O.
Emergency Medicine Physician · Chicago, IL
Mark Postel, D.O. is an emergency medicine physician with a practice address in Chicago, Illinois, and NPI 1114367612, issued on Jun 28, 2013. Check the license (Illinois 125-063093, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Mark Postel
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 125-063093 IL
Self-reported in NPPES; status is on the state search - Practice location
- 7435 W Talcott Ave, Chicago, IL 60631
- Phone
- (773) 792-7921
- Enumerated
- Jun 28, 2013
- Record last updated
- Jun 28, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160729000942); accepts Medicare assignment
- Medical or professional school
- Ohio University, College Of Osteopathic Medicine, 2013
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,291 in Illinois → Look up another NPI →
Also registered at 7435 W Talcott Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Eva Adams, P.T.Physical Therapist1265780753
- Jennifer AdamsStudent in an Organized Health Care Education/Training Program1710681473
- John Affinito, MDFamily Medicine Physician1316930191
- Omar Ahmed, DOEmergency Medicine Physician1043896947
Verify Mark Postel 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 125-063093Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% more Medicare Part D claims than the average emergency medicine physician in 2024
360 Medicare Part D claims for 237 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Meloxicam60 claims
- Prednisone39 claims
- Ondansetron Odt26 claims
- Amoxicillin-Clavulanate Potass16 claims
- Dicyclomine Hcl16 claims
- Nitrofurantoin Mono-Macro14 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 2 group practices
- Century Integrated Partners, IncDallas, TX
- Round Table Physicians Group PLLCHouston, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Postel among 3,291 emergency medicine physician records in Illinois
Mark Postel, D.O. is one of 3,291 emergency medicine physician records with a practice address in Illinois. 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 2013, is newer than 56% of them.
- NPI issued2013 · 56% of these records are older, 41% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2013 · median 2012 among the 1,867 with a school on file
- Record last updated2013 · 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 207P00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,310 emergency medicine physician records list a practice address in Chicago
They are 1,310 of the 63,379 NPPES records with a practice address in Chicago, and 3,291 emergency medicine physician records in Illinois.
All 3,291 in Illinois → Every provider in Chicago → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Stephen Bozek, M.D.Chicago, IL 606311841285103
- Shu Chan, M.D.Chicago, IL 606311790770014
- Steve Christos, D.O.Chicago, IL 606311902891237
- Darien Cohen, M.D.Chicago, IL 606311366437626
- James Harlan, M.D.Chicago, IL 606311619126372
- Linda Herman, M.D.Chicago, IL 606311619957776
- Matthew Jordan, M.D.Chicago, IL 606311952302101
- Robert Marshall, MDChicago, IL 606311316031396
Common questions
What is Mark Postel, D.O.'s NPI number?
Mark Postel, D.O.'s National Provider Identifier (NPI) is 1114367612, issued on Jun 28, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Mark Postel, D.O. located?
The NPPES record lists a practice address at 7435 W Talcott Ave, Chicago, IL, 60631. Phone: (773) 792-7921. Providers update this record themselves, so call before visiting.
How can I verify Mark Postel, D.O.'s license?
NPPES lists Illinois license number 125-063093, 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 Mark Postel, D.O. prescribe under Medicare Part D?
In 2024, Mark Postel, D.O. had 360 Medicare Part D claims for 237 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.