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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

JOEL M. WACKER M.D.
NPI 1619959111
Emergency Medicine in Madison, WI

Active since November 18, 2005
707 S MILLS ST, MADISON, WI 53715(608) 258-6100 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Joel M. Wacker M.d. NPPES

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

JOEL M. WACKER M.D. (NPI 1619959111) is an individual emergency medicine provider in Madison, Wisconsin, licensed in Wisconsin (23597) and active in the NPI registry since November 2005.

NPPES Registry Identity

NPI1619959111
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameJOEL M. WACKERCredential: M.D.
Location Address707 S MILLS STMadison, WI 53715-1849
Mailing Address707 S Mills StMadison, WI 53715-1849
Phone(608) 258-6100
Sole ProprietorNo
Enumeration DateNovember 18, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1619959111 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in WI · 23597
Definition

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

707 S MILLS ST, Madison, WI 53715
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Other Identifiers 1

Medicaid30449200WI

Other Providers at the Same Location NPPES 19

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

PHILIP M. SHULTZ M.D.
Emergency Medicine
707 S MILLS ST
MADISON, WI 53715
Dane County (608) 258-6100
DAWN A MATZKE CRNA
Nurse Anesthetist, Certified Registered
707 S MILLS ST, ST. MARYS HOSPITAL/DEAN MEDICAL CENTER
MADISON, WI 53715
Dane County (608) 258-6975
ANDERS C FEX MD
Anesthesiology
707 S MILLS ST, ST MARYS HOSPITAL/DEAN MEDICAL CENTER
MADISON, WI 53715
Dane County (608) 258-6975
TYSON O BRYANT MD
Emergency Medicine
707 S MILLS ST
MADISON, WI 53715
Dane County (608) 258-6100
EDWARD AHRENS M.D.
Internal Medicine (Nephrology)
707 S MILLS ST
MADISON, WI 53715
Dane County (608) 258-3200
DR. BANU EDIL MD
Emergency Medicine
707 S MILLS ST, ST MARY'S HOSPITAL, MADISON EMERGENCY PHYSICIANS (MEP)
MADISON, WI 53715
Dane County (608) 258-6504
MR. DAVID WILLIAM PETTY RPH
Pharmacist
707 S MILLS ST, SUITE 300
MADISON, WI 53715
Dane County (608) 258-5051
MRS. CHARLOTTE ELAINE JAMES PTA
Physical Therapy Assistant
707 S MILLS ST
MADISON, WI 53715
Dane County (608) 258-6645

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 Joel Wacker's NPI number?

The NPI number for Joel Wacker is 1619959111. It was assigned to this individual provider in the NPPES registry on November 18, 2005.

Where is Joel Wacker located?

Joel Wacker practices at 707 S Mills St, Madison, WI 53715. The listed phone number is (608) 258-6100.

What is Joel Wacker's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

When was this NPI record last updated?

The NPPES record for Joel Wacker was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.