Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

William T Witmer, MD

Individual provider Interventional Cardiology Physician · NPI 1033130653

William T Witmer, MD is a Cardiovascular Disease (Cardiology) in Green Bay, Wisconsin. Graduated from Vanderbilt University School of Medicine in 1988, 38 years ago. Practices with Baycare Aurora LLC, a 199-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
38
Trained at
Vanderbilt University School of Medicine
Licensed in
WI
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2845 Greenbrier Rd Ste 310
Green Bay, WI 54311-6519
Phone: (920) 288-8300
Fax: (920) 288-8305
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Interventional Cardiology Physician (primary) Taxonomy 207RI0011X · Licence 30867 (WI)

Record details

NPI number1033130653
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 21, 2006
Last updated in NPPESSeptember 30, 2008
Mailing address2845 Greenbrier Rd Ste 310, Po Box 8900, Green Bay, WI 54308-8900

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolVANDERBILT UNIVERSITY SCHOOL OF MEDICINE
Graduated 1988 (38 years in practice)
Group practice Baycare Aurora Llc — 199 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

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