Unknown Individual – Endocrinology, Diabetes & Metabolism Physician, NPI 1821021619

Unknown Individual is a healthcare provider. based in Chicago, Illinois. specializing in Endocrinology, Diabetes & Metabolism Physician. They hold a License No. 36-064409 (IL). The NPI Number for Unknown Individual is 1821021619

Main info

Organization
Inactive
45 Years Of Experience
Accepts Medicare Assignment
Name
Unknown Individual
NPI
1821021619
Phone
(773) 702-7936
Address
5841 S MARYLAND AVE # MC1027
Deactivation Date
7 August 2024

Doctor Profile

Medical School Name
OTHER
Secondary Phone
7737021000
Graduation Year
1981 (45 years ago)
PAC ID
0446218069
Group Practice PAC ID
7618880766
Professional Enrollment ID
I20041229000785

Contacts

Secure Messaging
gbakrismd22790@uchospital.direct-ci.com
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience28
Completeness85
Years active:0State licenses:2Other namesUpdated within 12 months

Provider Addresses for Unknown Individual

  • 5841 S MARYLAND AVE # MC1027

    CHICAGO, IL 606371447

    Phone: (773) 702-7936

    Type: Mailing

  • 150 HARVESTER DR

    SUITE 300

    BURR RIDGE, IL 605275919

    Phone:

    Type: Mailing

  • 5841 S MARYLAND AVE

    CHICAGO, IL 606371443

    Phone: (888) 824-0200

    Type: Location

  • Harvester Drive, Burr Ridge, DuPage County, Illinois, 65027, United States

    SUITE 110

    BURR RIDGE, IL 605277594

    Phone: (773) 702-1150

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 68 Open Payments records for all available years, with a total value of $42,317.

Total Amount is formed as General ($36,114) + Research ($6,203) + Ownership ($0) = $42,317.

Last reported payment date: 2024-06-14 • Largest payer in this snapshot: Novo Nordisk AS ($9,575).

Total Amount

$42,317

General + Research + Ownership

Payments

68

Total payment records

General Amount

$36,114

General payments

Research Amount

$6,203

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-06-14

Latest reported date

View all Open Payments →|Open Payments Risk Radar →

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.

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

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99214Established patient office or other outpatient visit, 30-39 minutes229161$0
99213Established patient office or other outpatient visit, 20-29 minutes2321$0
View full utilization report →

Insurance plans in this area (ZIP 60637)

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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: 7618880766View full group profile
NameSpecialtyState
Endocrinology, Internal MedicineIL
-IL
Internal MedicineIL
-IL
Interventional Cardiology, Internal Medicine, Cardiovascular Disease (Cardiology)IL
-CA
-IL
-IL
-IL
Cardiovascular Disease (Cardiology), Internal MedicineIL

Reviews

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Frequently asked questions

What number should I use to identify Unknown Individual for billing?
Administrative and clinical systems typically use NPI 1821021619 for Unknown Individual.
What should I verify if Unknown Individual is listed inactive?
If Unknown Individual looks inactive here, cross-check state licensing and the clinic website.
How should patients interpret Unknown Individual's specialty?
The extract shows Endocrinology, Diabetes & Metabolism Physician for Unknown Individual. Clinical services aligned with this taxonomy classification.
Which community is linked to Unknown Individual?
Unknown Individual shows a connection to Chicago, Illinois in registry-derived data.
Who maintains Unknown Individual's record?
Providers certify NPPES data; CMS hosts the public file you are viewing.

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