DR. GREGORY J. KRUPER (M.D.) – Otolaryngology Physician, NPI 1225263866

DR. GREGORY J. KRUPER (M.D.) is a healthcare provider. based in Gurnee, Illinois. specializing in OTOLARYNGOLOGY. They hold the professional credentials M.D.. They hold a License No. 036-134245 (IL). The NPI Number for DR. GREGORY J. KRUPER (M.D.) is 1225263866

Main info

Male
17 Years Of Experience
Accepts Medicare Assignment
Name
DR. GREGORY J. KRUPER (M.D.)
NPI
1225263866
Phone
(847) 662-4442
Address
222 S GREENLEAF ST STE 102
Enumeration Date
27 May 2009
Last Update Date
5 March 2025

Doctor Profile

Medical School Name
OTHER
Secondary Phone
8476624442
Graduation Year
2009 (17 years ago)
PAC ID
1153547963
Group Practice PAC ID
3476640459
Professional Enrollment ID
I20140730001750
Address ID
IL600315705GU222XXSTXX401

Contacts

Secure Messaging
gkruper234364@direct.myadvocateaurora.org
FHIR Endpoint
https://epicfhir.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience58
Completeness85
Years active:17State licenses:1Other namesUpdated within 12 months

488 OTOLARYNGOLOGY in IL

Provider Addresses for DR. GREGORY J. KRUPER (M.D.)

  • 222 S GREENLEAF ST STE 102

    GURNEE, IL 600315705

    Phone: (847) 662-4442

    Type: Location

  • 1880 W Winchester Rd Ste 103

    Libertyville, IL 600485321

    Phone: (847) 367-5770

    Type: Location

  • North Greenleaf Street, Chittenden, Gurnee, Lake County, Illinois, 60031, United States

    STE 102

    GURNEE, IL 600315705

    Phone: (847) 662-4442

    Fax: (847) 662-4446

    Type: Mailing

  • Detroit Receiving Hospital and University Health Center, 4201, Saint Antoine Street, Medical Center, Midtown, Detroit, Wayne County, Michigan, 48201, United States

    5E UHC

    DETROIT, MI 482012153

    Phone: (313) 577-0804

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

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

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2014-07-30

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20140730001750IOtolaryngologyILTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

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.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99214Established patient office or other outpatient visit, 30-39 minutes340252$0
99203New patient office or other outpatient visit, 30-44 minutes232232$0
69210Removal of impacted ear wax151137$0
99213Established patient office or other outpatient visit, 20-29 minutes11197$0
31231Diagnostic exam of nasal passages using an endoscope5854$0
View full utilization report →

Insurance plans in this area (ZIP 60031)

Loading plans...

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 3476640459View full group profile
NameSpecialtyState
O T O L A R Y N G O L O G YIN
Qualified AudiologistIL
Qualified AudiologistIL
O T O L A R Y N G O L O G YIL
O T O L A R Y N G O L O G YIL
O T O L A R Y N G O L O G YIL
-IL
Qualified AudiologistIL

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

What number should I use to identify DR. GREGORY J. KRUPER (M.D.) for billing?
Administrative and clinical systems typically use NPI 1225263866 for DR. GREGORY J. KRUPER (M.D.).
Is DR. GREGORY J. KRUPER (M.D.) currently accepting referrals based on NPI status?
Registry metadata lists DR. GREGORY J. KRUPER (M.D.) as active.
What type of care does DR. GREGORY J. KRUPER (M.D.) provide?
DR. GREGORY J. KRUPER (M.D.)'s profile centers on Otolaryngology Physician. Clinical services aligned with this taxonomy classification.
What city is tied to DR. GREGORY J. KRUPER (M.D.)?
The directory associates DR. GREGORY J. KRUPER (M.D.) with Gurnee, Illinois. Check all listed addresses for suites or satellite offices.
Who maintains DR. GREGORY J. KRUPER (M.D.)'s record?
Providers certify NPPES data; CMS hosts the public file you are viewing.

Similar Providers

DR. VIBHAKAR SHANTILAL SHAH (M.D.)

Otolaryngology Physician
North Greenleaf Street, Chittenden, Gurnee, Lake County, Illinois, 60031, United States
NPI: 1649268780

NARENDRA M DESAI (MD)

Otolaryngology Physician
222 S GREENLEAF ST STE 102
NPI: 1669449336

ERIK G NELSON (MD)

Otolaryngology Physician
North Greenleaf Street, Chittenden, Gurnee, Lake County, Illinois, 60031, United States
NPI: 1881706588
222 S GREENLEAF ST
NPI: 1851432157

BENJAMIN C JOHNSON (MD)

Otolaryngology Physician
222 S GREENLEAF
NPI: 1619193109

DR. GEOFFREY MICHAEL SCHWARTZ (M.D.)

Otolaryngology Physician
2802, Leonard Drive, Valparaiso, Porter County, Indiana, 46383, United States
NPI: 1023272515

MIDWEST ENT ALLIANCE PLLC

Otolaryngology Physician
16001 108TH AVE
NPI: 1114781309