DR. JOHN A. II GREAGER (MD) – Surgery Physician, NPI 1427164722

Excluded from federal healthcare programs (Medicare/Medicaid)

This provider is listed on the OIG List of Excluded Individuals/Entities (LEIE). Exclusion effective: 2024-04-18. Reason: Conviction of program-related crimes (mandatory; min. 5 years).

Surgery Physician

DR. JOHN A. II GREAGER (MD) is a healthcare provider. based in Hinsdale, Illinois. specializing in Surgery Physician. They hold the professional credentials MD. The NPI Number for DR. JOHN A. II GREAGER (MD) is 1427164722

Main info

Male

52 Years Of Experience

Accepts Medicare Assignment

Name

DR. JOHN A. II GREAGER (MD)

NPI

1427164722

Phone

(630) 261-0280

Address

436 N COUNTY LINE RD

Enumeration Date

21 August 2006

Last Update Date

13 October 2007

Doctor Profile

Medical School Name

UNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)

Secondary Phone

Graduation Year

1974 (52 years ago)

PAC ID

5698773869

Professional Enrollment ID

I20061122000286

Data current as of

19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology

Experience53

Completeness75

Years active:19State licenses:0Digital endpointsOther names

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Provider Addresses for DR. JOHN A. II GREAGER (MD)

436, North County Line Road, Hinsdale, Lyons Township, DuPage County, Illinois, 60521, United States
HINSDALE, IL 605213804
Phone: (630) 261-0280
Type: Mailing
1263, South Highland Avenue, Lombard, DuPage County, Illinois, 60148, United States
SUITE 100
LOMBARD, IL 601484516
Phone: (630) 261-0280
Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

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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)

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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 60521)

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Frequently asked questions

What is the standard ID for DR. JOHN A. II GREAGER (MD) in the U.S.?

In the U.S., DR. JOHN A. II GREAGER (MD) is identified by NPI 1427164722.

Does the public listing show DR. JOHN A. II GREAGER (MD) as active?

DR. JOHN A. II GREAGER (MD)'s NPI record reflects an active status in NPPES.

What does the directory say DR. JOHN A. II GREAGER (MD) does?

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

Which community is linked to DR. JOHN A. II GREAGER (MD)?

DR. JOHN A. II GREAGER (MD) shows a connection to Hinsdale, Illinois in registry-derived data.

Who maintains DR. JOHN A. II GREAGER (MD)'s record?

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