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DR. GRETCHEN M WEISS MD
NPI 1528049491
Internal Medicine in Chicago, IL

Active since November 08, 2005
181 W MADISON ST, SUITE 4550, CHICAGO, IL 60602(312) 641-2586 Get Directions Write a Review

NPPES record last updated: December 1, 2008. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Gretchen M Weiss Md NPPES

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

DR. GRETCHEN M WEISS MD (NPI 1528049491) is an individual internal medicine provider in Chicago, Illinois, licensed in Illinois (036115176) and active in the NPI registry since November 2005.

NPPES Registry Identity

NPI1528049491
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. GRETCHEN M WEISSCredential: MD
Location Address181 W MADISON ST, SUITE 4550Chicago, IL 60602-4510
Mailing Address10 Rockefeller Plz, 4th FloorNew York, NY 10020-1903 · (212) 332-3670
Phone(312) 641-2586
Sole ProprietorNo
Enumeration DateNovember 8, 2005
Last NPPES UpdateDecember 1, 2008
✔ NPI 1528049491 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in IL · 036115176✔ Licensed in MA · 60694
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
181 W MADISON ST, Chicago, IL 60602
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Other Identifiers 3

Medicare UPINE46379
Medicare ID-Type UnspecifiedJ09563MA
Medicaid3061132MA

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.

WENDY L STERNBERG MD
Internal Medicine
181 W MADISON ST, SUITE 3825
CHICAGO, IL 60602
Cook County (312) 219-2230
DR. HELEN P XENOS
Family Medicine
181 W MADISON ST, SUITE 3825
CHICAGO, IL 60602
Cook County (312) 219-2230
CARE HOMES MEDICAL
Durable Medical Equipment & Medical Supplies
181 W MADISON ST
CHICAGO, IL 60602
Cook County (888) 446-4118
VISIONARY EYE CARE PROFESSIONALS PC
Optometrist
181 W MADISON ST, SUITE 125
CHICAGO, IL 60602
Cook County (312) 201-8989

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 Gretchen Weiss's NPI number?

The NPI number for Gretchen Weiss is 1528049491. It was assigned to this individual provider in the NPPES registry on November 8, 2005.

Where is Gretchen Weiss located?

Gretchen Weiss practices at 181 W Madison St Suite 4550, Chicago, IL 60602. The listed phone number is (312) 641-2586.

What is Gretchen Weiss's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Gretchen Weiss was last updated on December 1, 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.