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DR. DOUGLAS JOHN FROHLICH I D.O.
NPI 1699960690
Family Medicine - Geriatric Medicine in Chicago, IL

Active since September 12, 2007
1229 N NORTH BRANCH ST, SUITE 210, CHICAGO, IL 60622(312) 939-5090 Get Directions Write a Review

NPPES record last updated: November 17, 2008. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Douglas John Frohlich I D.o. NPPES

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

DR. DOUGLAS JOHN FROHLICH I D.O. (NPI 1699960690) is an individual geriatric medicine provider in Chicago, Illinois, licensed in Illinois (036-074096) and active in the NPI registry since September 2007.

NPPES Registry Identity

NPI1699960690
Entity TypeIndividualMale
Primary Taxonomy207QG0300X
Provider Legal NameDR. DOUGLAS JOHN FROHLICH ICredential: D.O.
Location Address1229 N NORTH BRANCH ST, SUITE 210Chicago, IL 60622-2473
Mailing Address1229 N North Branch St, Suite 210Chicago, IL 60642-2473 · (312) 939-5090
Phone(312) 939-5090
Sole ProprietorNo
Enumeration DateSeptember 12, 2007
Last NPPES UpdateNovember 17, 2008
✔ NPI 1699960690 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyFamily Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207QG0300X
License✔ Licensed in IL · 036-074096
Definition
A family medicine physician with 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.
Also ListedFamily MedicineTaxonomy 207Q00000X · License 036074096 (IL)
1229 N NORTH BRANCH ST, Chicago, IL 60622
Open in Google Maps ↗

Other Identifiers 3

Other036074096IL · Il Medical License
Medicare PINR00918IL
Other1699960690Npi

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. SARAH MARTIN MENDENHALL M.D.
Internal Medicine (Geriatric Medicine)
1229 N NORTH BRANCH ST, #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

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 Douglas Frohlich's NPI number?

The NPI number for Douglas Frohlich is 1699960690. It was assigned to this individual provider in the NPPES registry on September 12, 2007.

Where is Douglas Frohlich located?

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

What is Douglas Frohlich's specialty?

The primary specialty registered for this NPI is Family Medicine, specializing in Geriatric Medicine, with taxonomy code 207QG0300X.

When was this NPI record last updated?

The NPPES record for Douglas Frohlich was last updated on November 17, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years 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.