NPPES file of Aug 9, 2026

Sean Lee, M.D.

Gastroenterology Physician · Libertyville, IL

Sean Lee, M.D. is a gastroenterology physician with a practice address in Libertyville, Illinois, and NPI 1194765248, issued on Jun 7, 2006. Check the license (Illinois 036-105509, 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
1194765248
Name
Sean Lee
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
036-105509 IL
Self-reported in NPPES; status is on the state search
Practice location
1880 W Winchester RD, Libertyville, IL 60048
Phone
(847) 247-0187
Enumerated
Jun 7, 2006
Record last updated
Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(847) 247-0487
Medicaid ID
036-105509 IL
Medicare enrollment
Enrolled (PECOS I20040730000151); accepts Medicare assignment
Medical or professional school
University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1998
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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8 nearest gastroenterology physician records → All 887 in Illinois → Look up another NPI →

Also registered at 1880 W Winchester RD

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

  1. Arkan Alrashid, M.D.Gastroenterology Physician1851348916
  2. Annette Arnold, D.N.Naprapath1477794030
  3. Eric Jeffries, FNPNurse Practitioner1417300161
  4. Steven Marquardt, MDPain Medicine (Anesthesiology) Physician1972578227
  5. Emmanuel Njoku, MDInternal Medicine Physician1689981045
  6. Geetha Reddy, MDCardiovascular Disease Physician1174545453

Verify Sean 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 036-105509    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

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84% more Medicare Part D claims than the average gastroenterology physician in 2024

1,491 Medicare Part D claims for 430 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.

  1. Sean Lee1,491
  2. Specialty average811

Most prescribed

  1. Omeprazole405 claims
  2. Pantoprazole Sodium222 claims
  3. Amitriptyline Hcl131 claims
  4. Linzess81 claims
  5. Budesonide Dr56 claims
  6. Famotidine39 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.

Industry payments in 2024: $3,980.85

199 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Sean Lee$3,980.85
  2. Specialty average$5,015.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. GI Partners OF Illinois LLCLibertyville, IL

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

Sean Lee among 887 gastroenterology physician records in Illinois

Sean 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
  • Graduated1998 · median 2003 among the 643 with a school on file
  • Record last updated2021 · 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.

All 887 in Illinois → Every provider in Libertyville → Gastroenterology Physician nationwide →

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Philip Adjei, M.D.Libertyville, IL 600481720080054
  2. Arkan Alrashid, M.D.Libertyville, IL 600481851348916
  3. Mohammad Bawani, MDLibertyville, IL 600481407858152
  4. Robert Hadesman, M.D.Libertyville, IL 600481245234574
  5. Saad Hashmi, MDLibertyville, IL 600481326579434
  6. Ahmad Hassan, MDLibertyville, IL 600481033572904
  7. Timothy Laurie, D.O.Libertyville, IL 600481790941078
  8. Andrew Mazulis, M.D.Libertyville, IL 600481699031583

Common questions

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

Sean Lee, M.D.'s National Provider Identifier (NPI) is 1194765248, issued on Jun 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Sean Lee, M.D. located?

The NPPES record lists a practice address at 1880 W Winchester RD, Libertyville, IL, 60048. Phone: (847) 247-0187. Providers update this record themselves, so call before visiting.

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

NPPES lists Illinois license number 036-105509, 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 Sean Lee, M.D. prescribe under Medicare Part D?

In 2024, Sean Lee, M.D. had 1,491 Medicare Part D claims for 430 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.