DR. STEPHEN JOHN MENDAK (MD) – Surgery Physician, NPI 1154419257

Surgery Physician

DR. STEPHEN JOHN MENDAK (MD) is a healthcare provider. based in Elmhurst, Illinois. specializing in Surgery Physician. They hold the professional credentials MD. The NPI Number for DR. STEPHEN JOHN MENDAK (MD) is 1154419257

Main info

Male

Name

DR. STEPHEN JOHN MENDAK (MD)

NPI

1154419257

Phone

(630) 279-5701

Address

340 W BUTTERFIELD RD

Enumeration Date

11 October 2006

Last Update Date

8 July 2007

Data current as of

19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology

Experience43

Completeness75

Years active:19State licenses:0Digital endpointsOther names

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Provider Addresses for DR. STEPHEN JOHN MENDAK (MD)

340, West Butterfield Road, Yorkfield, Elmhurst, DuPage County, Illinois, 60126, United States
1D
ELMHURST, IL 601265069
Phone: (630) 279-5701
Fax: (630) 279-5144
Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

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Medicare Enrollment & Revalidation

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Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 60126)

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Reviews

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Frequently asked questions

What is the standard ID for DR. STEPHEN JOHN MENDAK (MD) in the U.S.?

In the U.S., DR. STEPHEN JOHN MENDAK (MD) is identified by NPI 1154419257.

Should I treat DR. STEPHEN JOHN MENDAK (MD) as an active provider?

Patients and plans typically see DR. STEPHEN JOHN MENDAK (MD) as active in the national extract.

What does the directory say DR. STEPHEN JOHN MENDAK (MD) does?

Insurance directories may phrase it differently, but here DR. STEPHEN JOHN MENDAK (MD) maps to Surgery Physician. Clinical services aligned with this taxonomy classification.

What city is tied to DR. STEPHEN JOHN MENDAK (MD)?

The directory associates DR. STEPHEN JOHN MENDAK (MD) with Elmhurst, Illinois. Check all listed addresses for suites or satellite offices.

Who maintains DR. STEPHEN JOHN MENDAK (MD)'s record?

Providers certify NPPES data; CMS hosts the public file you are viewing.