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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.

GREGORY MEDIS MD
NPI 1508832684
Internal Medicine - Medical Oncology in Madison, WI

Active since February 27, 2006
600 HIGHLAND AVE, MADISON, WI 53792(606) 265-1700(608) 833-6932 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Gregory Medis Md NPPES

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

GREGORY MEDIS MD (NPI 1508832684) is an individual medical oncology provider in Madison, Wisconsin, licensed in Wisconsin (28844) and active in the NPI registry since February 2006.

NPPES Registry Identity

NPI1508832684
Entity TypeIndividualMale
Primary Taxonomy207RX0202X
Provider Legal NameGREGORY MEDISCredential: MD
Location Address600 HIGHLAND AVEMadison, WI 53792-0001
Mailing Address8007 Excelsior DrMadison, WI 53717-1962 · (608) 829-5201 · Fax (608) 833-6932
Phone(606) 265-1700
Fax(608) 833-6932
Sole ProprietorNo
Enumeration DateFebruary 27, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1508832684 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
License✔ Licensed in WI · 28844
Definition
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.
600 HIGHLAND AVE, Madison, WI 53792
Open in Google Maps ↗

Other Identifiers 1

Medicaid30842900WI

Other Providers at the Same Location NPPES 20

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

JASON ALAN CHRISTENSEN PHARMD
Pharmacist
600 HIGHLAND AVE, COMPLIANCE MAIL CODE 2433
MADISON, WI 53792
Dane County (608) 662-0817
LAURA JEAN KOPPLIN MD, PHD
Ophthalmology
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-6070
HAGGI MAZEH MD
Surgery
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 265-8072
DR. SWAPNIL SUNIL LANJEWAR M.D.
Internal Medicine (Infectious Disease)
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-0946
DR. MATTHEW JAMES HOYT M.D.
Anesthesiology
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-8100
VANESSA MERCEDES WELTEN MD MPH
Transplant Surgery
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (617) 732-5500
JOHN HENRY NORMAN HARRISON
Anesthesiology
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-8100
PIPPA FROUKTE COSPER MD
Radiology (Radiation Oncology)
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-8500

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 Gregory Medis's NPI number?

The NPI number for Gregory Medis is 1508832684. It was assigned to this individual provider in the NPPES registry on February 27, 2006.

Where is Gregory Medis located?

Gregory Medis practices at 600 Highland Ave, Madison, WI 53792. The listed phone number is (606) 265-1700.

What is Gregory Medis's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

When was this NPI record last updated?

The NPPES record for Gregory Medis 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 39 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.