Unknown Individual – Geriatric Medicine (Family Medicine) Physician, NPI 1821065798

Unknown Individual is a healthcare provider. based in Chicago, Illinois. specializing in Geriatric Medicine (Family Medicine) Physician. They hold a License No. 036067747 (IL). The NPI Number for Unknown Individual is 1821065798

Main info

Organization
Inactive
Name
Unknown Individual
NPI
1821065798
Phone
(630) 469-9200
Address
1860 PAYSPHERE CIR
Deactivation Date
21 July 2022
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience14
Completeness75
Years active:0State licenses:1Digital endpointsOther names

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Provider Addresses for Unknown Individual

  • 1860 PAYSPHERE CIR

    CHICAGO, IL 606740018

    Phone: (630) 469-9200

    Type: Mailing

  • 640, South Washington Street, Naperville, DuPage County, Illinois, 60540, United States

    STE 350

    NAPERVILLE, IL 605406603

    Phone: (630) 717-2646

    Type: Location

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 60674)

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Provider's Procedures

Unknown Individual performs procedures in Geriatric Medicine (Family Medicine) Physician. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
FAMILY MEDICINEIL81002Urinalysis, manual test8883
FAMILY MEDICINEIL85610Blood test, clotting time7766

Reviews

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Frequently asked questions

How is Unknown Individual identified in CMS data?
CMS-hosted NPPES data lists Unknown Individual with NPI 1821065798.
Why is Unknown Individual marked inactive in the NPI directory?
The public NPI listing for Unknown Individual is not currently active; confirm directly with the practice or licensing boards.
What is Unknown Individual's specialty?
The listing groups Unknown Individual with Geriatric Medicine (Family Medicine) Physician. Clinical services aligned with this taxonomy classification.
Where should I expect Unknown Individual on a map?
Expect Chicago, Illinois as a primary anchor for Unknown Individual unless the record lists multiple sites.
What does 'Individual Provider' mean on this profile?
Entity type tells you whether the number belongs to a person or an organization.

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