NPPES file of Aug 9, 2026

Peter Y. Lee, M.D.

Gastroenterology Physician · Glenview, IL

Peter Y. Lee, M.D. is a gastroenterology physician with a practice address in Glenview, Illinois, and NPI 1306873021, issued on Jun 27, 2006. Check the license (Illinois 036090631, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1306873021
Name
Peter Y. Lee
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License numbers
036090631 IL
33289 WI
Self-reported in NPPES; status is on the state search
Practice location
1255 Milwaukee Ave, Glenview, IL 60025
Phone
(847) 294-5490
Enumerated
Jun 27, 2006
Record last updated
Jan 4, 2023
Fax
(847) 294-5496
Medicare enrollment
Enrolled (PECOS I20210618000188); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1255 Milwaukee Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Seong Chin, M.D.Geriatric Medicine (Internal Medicine) Physician1205941127
  2. Kenneth Kells, MDFamily Medicine Physician1437188224
  3. Nan Kwon, M.DPediatrics Physician1962435727
  4. Nancy Novotny, M.D.Internal Medicine Physician1811005630
  5. Dana Russo, D.O.Obstetrics & Gynecology Physician1689883688
  6. Joel Shoolin, DOFamily Medicine Physician1639189129

Verify Peter Y. Lee in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036090631
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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37% fewer Medicare Part D claims than the average gastroenterology physician in 2024

509 Medicare Part D claims for 497 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 51% of claims.

  1. Peter Lee509
  2. Specialty average811

Most prescribed

  1. Peg-3350 And Electrolytes237 claims
  2. Gavilyte-G122 claims
  3. Gavilyte-C92 claims
  4. Peg 3350-Electrolyte32 claims
  5. Omeprazole20 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

  1. Gundersen Lutheran Medical Center IncLa Crosse, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Peter Y. Lee among 887 gastroenterology physician records in Illinois

Peter Y. Lee, M.D. is one of 887 gastroenterology physician records with a practice address in Illinois. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.

  • NPI issued2006 · 15% of these records are older, 52% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated1987 · median 2003 among the 643 with a school on file
  • Record last updated2023 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Illinois

There are 887 gastroenterology physician records in Illinois.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Douglas Adler, MDGlenview, IL 600261255313367
  2. Ronald Bloom, MDGlenview, IL 600261659353779
  3. Monica Borkar, MDGlenview, IL 600261053353169
  4. Soojong Chae, MDGlenview, IL 600261174716500
  5. Kenneth Chi, MDGlenview, IL 600261821070939
  6. Meghana Doniparthi, M.DGlenview, IL 600261861854697
  7. Ioannis Economou, M.D.Glenview, IL 600261194935494
  8. Nina Merel, MDGlenview, IL 600261285616300

Common questions

What is Peter Y. Lee, M.D.'s NPI number?

Peter Y. Lee, M.D.'s National Provider Identifier (NPI) is 1306873021, issued on Jun 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Peter Y. Lee, M.D. located?

The NPPES record lists a practice address at 1255 Milwaukee Ave, Glenview, IL, 60025. Phone: (847) 294-5490. Providers update this record themselves, so call before visiting.

How can I verify Peter Y. Lee, M.D.'s license?

NPPES lists Illinois license number 036090631, 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 Y. Lee, M.D. prescribe under Medicare Part D?

In 2024, Peter Y. Lee, M.D. had 509 Medicare Part D claims for 497 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.