Unknown Individual – Geriatric Medicine (Internal Medicine) Physician, NPI 1013007798

Geriatric Medicine (Internal Medicine) Physician

Unknown Individual is a healthcare provider. based in Aurora, Colorado. specializing in Geriatric Medicine (Internal Medicine) Physician. They hold a License No. 22122 (CO). The NPI Number for Unknown Individual is 1013007798

Main info

Organization

Inactive

50 Years Of Experience

Accepts Medicare Assignment

Name

Unknown Individual

NPI

1013007798

Phone

(303) 493-7000

Address

PO BOX 110429

Deactivation Date

25 January 2021

Doctor Profile

Medical School Name

UNIVERSITY OF COLORADO SCHOOL OF MEDICINE, DENVER

Secondary Phone

7208480000

Graduation Year

1976 (50 years ago)

PAC ID

1658260047

Group Practice PAC ID

3476465667

Professional Enrollment ID

I20040312001300

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

PO BOX 110429
AURORA, CO 800420429
Phone: (303) 493-7000
Type: Mailing
University of Colorado Hospital, 12605, East 16th Avenue, Aurora, Adams County, Colorado, 80045, United States
AURORA, CO 800452545
Phone: (720) 848-0000
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 80042)

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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: 3476465667View full group profile

Name	Specialty	State
LAURA TIERNEY YOST (CRNA)	-	CO
DR. ANN T KLEIN (MD)	Family Practice	CO
LARRY ALLEN (MD)	Advanced Heart Failure And Transplant Cardiology, Cardiac Electrophysiology, Cardiovascular Disease (Cardiology), Internal Medicine	CO
JEFFREY DRUCK (MD)	Emergency Medicine	CO
BARBARA BLOK (MD)	Emergency Medicine	CO
Unknown Individual	-	CO
CHARLES LITTLE (DO)	Emergency Medicine	CO
KELLY A. OBRIEN (P.A.C.)	-	CO
AMANDA JEAN JOHNSON (MD)	-	CO
AMY REBECCA DUNN (PA-C)	-	CO

Reviews

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Frequently asked questions

What identifier follows Unknown Individual across health systems?

The NPI 1013007798 uniquely identifies Unknown Individual in U.S. healthcare data.

Does inactive mean outdated data for Unknown Individual?

Inactive status means the NPI record is not marked active in the public file — verify before making care decisions.

Which specialty label fits Unknown Individual?

NPPES ties Unknown Individual to Geriatric Medicine (Internal Medicine) Physician in the taxonomy section. Clinical services aligned with this taxonomy classification.

Which community is linked to Unknown Individual?

Unknown Individual shows a connection to Aurora, Colorado in registry-derived data.

What is the difference between NPI and a medical license?

An NPI is a federal identifier; a medical license is issued by a state and governs where someone may practice.