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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. SARAH MARTIN MENDENHALL M.D.
NPI 1558301705
Internal Medicine - Geriatric Medicine in Chicago, IL

Active since June 07, 2006
1229 N NORTH BRANCH ST, #210, CHICAGO, IL 60622(312) 939-5090(312) 640-4496 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Sarah Martin Mendenhall M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. SARAH MARTIN MENDENHALL M.D. (NPI 1558301705) is an individual geriatric medicine provider in Chicago, Illinois and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1558301705
Entity TypeIndividualFemale
Primary Taxonomy207RG0300X
Provider Legal NameDR. SARAH MARTIN MENDENHALLCredential: M.D.
Location Address1229 N NORTH BRANCH ST, #210Chicago, IL 60622-2473
Mailing Address1229 N North Branch St, #210Chicago, IL 60622-2473 · (312) 939-5090 · Fax (312) 640-4496
Phone(312) 939-5090
Fax(312) 640-4496
Sole ProprietorNo
Enumeration DateJune 7, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1558301705 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RG0300X
Definition
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.
1229 N NORTH BRANCH ST, Chicago, IL 60622
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Other Identifiers 1

Medicaid36-100298IL

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

NORMAN PATRICK JOHNSTON M.D.
Family Medicine (Geriatric Medicine)
1229 N NORTH BRANCH ST, 210
CHICAGO, IL 60622
Cook County (312) 939-5090
MOBILE DOCTORS MANAGEMENT
Internal Medicine (Geriatric Medicine)
1229 N NORTH BRANCH ST, SUITE 210
CHICAGO, IL 60622
Cook County (312) 939-5090
DR. GLENN M WINTER M.D.
Internal Medicine (Geriatric Medicine)
1229 N NORTH BRANCH ST, SUITE 210
CHICAGO, IL 60622
Cook County (312) 939-5090
DR. DOUGLAS JOHN FROHLICH I D.O.
Family Medicine (Geriatric Medicine)
1229 N NORTH BRANCH ST, SUITE 210
CHICAGO, IL 60622
Cook County (312) 939-5090

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sarah Mendenhall's NPI number?

The NPI number for Sarah Mendenhall is 1558301705. It was assigned to this individual provider in the NPPES registry on June 7, 2006.

Where is Sarah Mendenhall located?

Sarah Mendenhall practices at 1229 N North Branch St #210, Chicago, IL 60622. The listed phone number is (312) 939-5090.

What is Sarah Mendenhall's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

When was this NPI record last updated?

The NPPES record for Sarah Mendenhall was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 30 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.