NPPES file of Aug 9, 2026

Erhan Guler, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Winfield, IL

Erhan Guler, MD is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Winfield, Illinois, and NPI 1275121477, issued on Jan 4, 2021. Check the license (Illinois 036165657, 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
1275121477
Name
Erhan Guler
Credential
MD
Primary taxonomy
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
License numbers
036165657 IL
35.147107 OH
Self-reported in NPPES; status is on the state search
Practice location
25 N Winfield RD Ste 201, Winfield, IL 60190
Phone
(630) 933-4480
Enumerated
Jan 4, 2021
Record last updated
Nov 13, 2023
Fax
(630) 933-6009
Medicare enrollment
Enrolled (PECOS I20230727000714); 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 25 N Winfield RD Ste 201

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

  1. Kelsey Corbelli, APRN, CNPNurse Practitioner1861241911
  2. Rebecca Cullen, FNP-BCNurse Practitioner1760155071
  3. Amy Fichtel, APRN, CNPNurse Practitioner1528732583
  4. Allison Kightly, PA-CPhysician Assistant1003439217
  5. Amanda Malone, APRN, FNP-CNurse Practitioner1578215752
  6. Roma Patel, PA-CPhysician Assistant1003531120

Verify Erhan Guler 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 036165657
    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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82% fewer Medicare Part D claims than the average thoracic surgery (cardiothoracic vascular surgery) physician in 2024

18 Medicare Part D claims, against an average of 101 among the 2,587 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Erhan Guler18
  2. Specialty average101

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: $29.29

1 payment: food and beverage; the largest payer was Abiomed. The 4,047 providers of this specialty with any payment received $7,828.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Erhan Guler$29.29
  2. Specialty average$7,828.84

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. Northwestern Medical Faculty FoundationWinfield, IL

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

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in Illinois

There are 265 thoracic surgery (cardiothoracic vascular surgery) physician records in Illinois.

Other thoracic surgery (cardiothoracic vascular surgery) physician records in Illinois

  1. Khaled Abdelhady, M.D.Chicago, IL1811173156
  2. Zaid Abdelsattar, MD, MSCMaywood, IL1760793293
  3. Paul Acosta, MD, MBAChicago, IL1952160863
  4. Gillian Alex, M.D.Chicago, IL1851730907
  5. Philip Alexander, M.D.Oak Lawn, IL1437159142
  6. Yazan Aljamal, MDChicago, IL1942618970
  7. Faisal Alshamdin, MDChicago, IL1831914720
  8. Rudolph Altergott, MDDowners Grove, IL1417910803
  9. Richard Anderson, M.D.Peoria, IL1699703892
  10. Robert Applebaum, M.D.Blue Island, IL1477553188

Common questions

What is Erhan Guler, MD's NPI number?

Erhan Guler, MD's National Provider Identifier (NPI) is 1275121477, issued on Jan 4, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Erhan Guler, MD located?

The NPPES record lists a practice address at 25 N Winfield RD Ste 201, Winfield, IL, 60190. Phone: (630) 933-4480. Providers update this record themselves, so call before visiting.

How can I verify Erhan Guler, MD's license?

NPPES lists Illinois license number 036165657, 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 Erhan Guler, MD prescribe under Medicare Part D?

In 2024, Erhan Guler, MD had 18 Medicare Part D claims; the average among thoracic surgery (cardiothoracic vascular surgery) physician prescribers was 101. 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.