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

Benjamin J Kaster, MD

Individual provider Emergency Medicine Physician · NPI 1881033298

Benjamin J Kaster, MD is registered under Family Practice in Wausau, Wisconsin. Qualified in 2012, 14 years ago. Practices with Aspirus Wausau Hospital Inc, a 240-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
14
Licensed in
WI
In the registry since
2013
Specialties on file
2
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

333 Pine Ridge Blvd
Wausau, WI 54401-4149 Not confirmed with CMS for 10 years — call before visiting
Phone: (715) 847-2121
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence FK5018014 (WI)
Emergency Medicine Physician Taxonomy 207P00000X · Licence FK5018014 (WI)

Record details

NPI number1881033298
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 19, 2013
Last updated in NPPESAugust 20, 2016

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice Aspirus Wausau Hospital Inc — 240 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 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 patients141
Services billed 533 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

Colleagues at Aspirus Wausau Hospital Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 240 clinicians in the practice; 12 are shown here.

Other providers in Wausau