Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

John E Carroll Jr., MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1114935400

John E Carroll Jr., MD practises Internal Medicine in Wausau, Wisconsin. Graduated from University of Wisconsin School of Medicine in 1974, 52 years ago. Practices with Aspirus Medical Group, Inc, a 274-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Wisconsin.

Years since qualifying
52
Trained at
University of Wisconsin 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.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

2720 Plaza Dr Ste 1400
Wausau, WI 54401-4158 Not confirmed with CMS for 19 years — call before visiting
Phone: (715) 847-2004
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence 19661 (WI)

Record details

NPI number1114935400
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 3, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesENDOCRINOLOGY
Medical schoolUNIVERSITY OF WISCONSIN SCHOOL OF MEDICINE
Graduated 1974 (52 years in practice)
Group practice Aspirus Medical Group, Inc. — 274 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations7 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients283
Services billed 2,676 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Aspirus Wausau Hospital Hospital · Wausau, WI
  • Howard Young Medical Center Hospital · Woodruff, WI · listed as The Howard Young Medical Center, Inc
  • Langlade Hospital Hospital · Antigo, WI · listed as Langlade Memorial Hospital
  • Aspirus Keweenaw Hospital And Clinics Hospital · Laurium, MI
  • Aspirus Rhinelander Hospital Hospital · Rhinelander, WI

Colleagues at Aspirus Medical Group, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 274 clinicians in the practice; 12 are shown here.

Other providers in Wausau