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

William James Wittman, MD

Individual provider Internal Medicine Physician · NPI 1902880511

William James Wittman, MD is an Internal Medicine in Oconto Falls, Wisconsin. Graduated from University of Minnesota Medical School in 1980, 46 years ago. Practices with Apogee Medical Group Wisconsin SC, a 42-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
46
Trained at
University of Minnesota Medical School
Licensed in
WI
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

107 E Highland Dr
Oconto Falls, WI 54154-1002
Phone: (920) 846-3092
Fax: (920) 846-8313
Show map & directions

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

Additional practice locations (2)

  • 833 S Main St, Oconto Falls, WI 54154-1241 — (920) 846-3092
  • 307 Manor Dr, Suring, WI 54174-9182 — (920) 842-2144

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 24066 (WI)

Record details

NPI number1902880511
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 6, 2005
Last updated in NPPESAugust 24, 2020
Certification dateAugust 24, 2020
Mailing addressPo Box 22487, Green Bay, WI 54305-2487

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesFAMILY PRACTICE
Medical schoolUNIVERSITY OF MINNESOTA MEDICAL SCHOOL
Graduated 1980 (46 years in practice)
Group practice Apogee Medical Group Wisconsin Sc — 42 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Oconto Falls