Unknown Individual – Internal Medicine Physician, NPI 1538451323

Unknown Individual is a healthcare provider. based in Oak brook, Illinois. specializing in Internal Medicine Physician. They hold a License No. 036.069706 (IL). The NPI Number for Unknown Individual is 1538451323

Main info

Organization
Inactive
44 Years Of Experience
Accepts Medicare Assignment
Name
Unknown Individual
NPI
1538451323
Phone
(312) 728-4728
Address
600 ENTERPRISE DR STE 212
Deactivation Date
13 October 2023

Doctor Profile

Medical School Name
SOUTHERN ILLINOIS UNIVERSITY SCHOOL OF MEDICINE
Secondary Phone
6307159738
Graduation Year
1982 (44 years ago)
PAC ID
3476580846
Group Practice PAC ID
6709137854
Professional Enrollment ID
I20050719000074
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience23
Completeness75
Years active:0State licenses:2Digital endpointsOther names

Provider Addresses for Unknown Individual

  • 600 ENTERPRISE DR STE 212

    OAK BROOK, IL 605231958

    Phone: (312) 728-4728

    Fax: (312) 728-4729

    Type: Mailing

  • 150 S BLOOMINGDALE RD STE 210

    BLOOMINGDALE, IL 601081494

    Phone: (312) 698-0070

    Fax: (312) 698-0074

    Type: Mailing

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.

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.

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

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.

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

Insurance plans in this area (ZIP 60523)

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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: 6709137854View full group profile
NameSpecialtyState
Certified Clinical Nurse Specialist (Cns)IL
-IL
General PracticeIL

Reviews

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Frequently asked questions

What unique ID ties claims to Unknown Individual?
NPI 1538451323 is assigned to Unknown Individual under the national enumeration system.
Why would Unknown Individual's listing show inactive?
Inactive in NPPES means the identifier is not currently active in that dataset.
What kind of provider is Unknown Individual?
The page reflects Internal Medicine Physician for Unknown Individual. Clinical services aligned with this taxonomy classification.
Does Unknown Individual practice in Illinois?
You will see Oak Brook, Illinois on file for Unknown Individual alongside any extra practice locations.
Is Unknown Individual a real provider?
This page reflects official NPPES data for NPI 1538451323. Always confirm identity and privileges with the practice and licensing boards.

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