Peter Czobor, M.D.
Internal Medicine Physician · Chicago, IL
Peter Czobor, M.D. is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1861701773, issued on Sep 28, 2010. Check the license (Illinois 125057544, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Peter Czobor
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 125057544 IL
Self-reported in NPPES; status is on the state search - Practice location
- 5841 S Maryland Ave, Chicago, IL 60637
- Phone
- (773) 702-1000
- Enumerated
- Sep 28, 2010
- Record last updated
- Dec 17, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20201216002345); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 2010
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 5841 S Maryland Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ma. Theresa Abaring, CRNACertified Registered Nurse Anesthetist1962647586
- Rouzbeh AbbasgholizadehRetina Specialist (Ophthalmology) Physician1881510030
- Jehad Abdalla, MDSleep Medicine (Internal Medicine) Physician1053898684
- Sara Abdelaziz, MDEndocrinology, Diabetes & Metabolism Physician1598258089
- Noor Abdelrahman, PA-CPhysician Assistant1851012413
- Unknown Abdul Hanan, MDBlood Banking & Transfusion Medicine Physician1750022240
Verify Peter Czobor 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 125057544Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,342 Medicare Part D claims for 259 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Metoprolol Succinate165 claims
- Jardiance133 claims
- Atorvastatin Calcium108 claims
- Carvedilol84 claims
- Furosemide81 claims
- Entresto76 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
- Permanente Medical Group IncSacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Peter Czobor among 7,238 internal medicine physician records in Illinois
Peter Czobor, M.D. 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 2010, is newer than 51% of them.
- NPI issued2010 · 51% of these records are older, 47% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2010 · median 2003 among the 3,580 with a school on file
- Record last updated2021 · 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).
2,867 internal medicine physician records list a practice address in Chicago
They are 2,867 of the 63,379 NPPES records with a practice address in Chicago, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Chicago → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jennifer AngelesChicago, IL 606371114945276
- Sameer Badlani, MDChicago, IL 606371699795302
- Kristine Bordenave, M.D.Chicago, IL 606371811009368
- Andrew DavisChicago, IL 606371275642167
- Hatim HassanChicago, IL 606371417970385
- Keiki Hinami, M.D.Chicago, IL 606371437136785
- David Liebovitz, MDChicago, IL 606371972564748
- Thomas Mason, M.D.Chicago, IL 606371730114505
Common questions
What is Peter Czobor, M.D.'s NPI number?
Peter Czobor, M.D.'s National Provider Identifier (NPI) is 1861701773, issued on Sep 28, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Peter Czobor, M.D. located?
The NPPES record lists a practice address at 5841 S Maryland Ave, Chicago, IL, 60637. Phone: (773) 702-1000. Providers update this record themselves, so call before visiting.
How can I verify Peter Czobor, M.D.'s license?
NPPES lists Illinois license number 125057544, 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 Peter Czobor, M.D. prescribe under Medicare Part D?
In 2024, Peter Czobor, M.D. had 1,342 Medicare Part D claims for 259 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.