Mitchell Brian Pei, MD
Family Medicine Physician · Chicago, IL
Mitchell Brian Pei, MD is a family medicine physician with a practice address in Chicago, Illinois, and NPI 1679277693, issued on Mar 27, 2023. Check the license (Illinois 036.177145, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Mitchell Brian Pei
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036.177145 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1435 W Webster Ave, Chicago, IL 60614
- Phone
- (773) 356-7700
- Enumerated
- Mar 27, 2023
- Record last updated
- Jul 13, 2026
- Medicare enrollment
- Enrolled (PECOS I20260527003264); may accept Medicare assignment
- Medical or professional school
- University Of Toledo College Of Medicine, 2023
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 1435 W Webster Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jane Bang, M.D.Family Medicine Physician1588740955
- Meghan BrewsterPhysical Therapist1457976490
- Katherine CrossFamily Medicine Physician1548847114
- Paul Defrino, MDOrthopaedic Surgery Physician1326046319
- Caitlin Farrell, FNP-CFamily Nurse Practitioner1649920752
Verify Mitchell Brian Pei 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 036.177145Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average family medicine physician in 2024
275 Medicare Part D claims for 87 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium23 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.
Mitchell Brian Pei among 6,215 family medicine physician records in Illinois
Mitchell Brian Pei, MD is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 91% of them.
- NPI issued2023 · 91% of these records are older, 6% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2023 · median 2006 among the 3,714 with a school on file
- Record last updated2026 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,593 family medicine physician records list a practice address in Chicago
They are 1,593 of the 63,379 NPPES records with a practice address in Chicago, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Chicago → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- James Arons, D.O.Chicago, IL 606141558351643
- Jane Bang, M.D.Chicago, IL 606141588740955
- Christopher Boisselle, M.D.Chicago, IL 606141568780740
- Brian Casaclang, D.O.Chicago, IL 606141093740490
- Andrew Guzman, MDChicago, IL 606141417368226
- Erica Hartl, MDChicago, IL 606141942239447
- Karl Kirby, M.D.Chicago, IL 606141760416531
- Marla Kushner, DOChicago, IL 606141538119268
Common questions
What is Mitchell Brian Pei, MD's NPI number?
Mitchell Brian Pei, MD's National Provider Identifier (NPI) is 1679277693, issued on Mar 27, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Mitchell Brian Pei, MD located?
The NPPES record lists a practice address at 1435 W Webster Ave, Chicago, IL, 60614. Phone: (773) 356-7700. Providers update this record themselves, so call before visiting.
How can I verify Mitchell Brian Pei, MD's license?
NPPES lists Illinois license number 036.177145, 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 Mitchell Brian Pei, MD prescribe under Medicare Part D?
In 2024, Mitchell Brian Pei, MD had 275 Medicare Part D claims for 87 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.