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

Isaac Chris Boyack, MD

Individual provider Diagnostic Radiology Physician · NPI 1942663414

Isaac Chris Boyack, MD is a Diagnostic Radiology in Marshfield, Wisconsin. Qualified in 2016, 10 years ago. Practices with Marshfield Clinic Inc, a 212-clinician group and accepts Medicare assignment. Licensed in New York and Wisconsin.

Years since qualifying
10
Licensed in
NY, WI
In the registry since
2016
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

1000 N Oak Ave
Marshfield, WI 54449-5703
Phone: (715) 387-5511
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence 80087 (WI)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 301190 (NY)

Record details

NPI number1942663414
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 1, 2016
Last updated in NPPESJanuary 26, 2023
Certification dateJanuary 26, 2023
Mailing address1000 N Oak Ave, Marshfield, WI 54449-5703

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Marshfield Clinic Inc — 212 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations13 on file with Medicare

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