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

Mark C Antonishen, MD

Individual provider Internal Medicine Physician · NPI 1518971654

Mark C Antonishen, MD is an Internal Medicine in Boyne City, Michigan. Graduated from Wayne State University School of Medicine in 1981, 45 years ago. Practices with Munson Healthcare Charlevoix Hospital, a 54-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
45
Trained at
Wayne State University School of Medicine
Licensed in
MI
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 →

Practice location Address checks out

223 N Park St
Boyne City, MI 49712-1220
Phone: (231) 582-8010
Fax: (231) 582-5338
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 4301046169 (MI)

Record details

NPI number1518971654
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 27, 2006
Last updated in NPPESFebruary 2, 2024
Certification dateFebruary 2, 2024
Mailing address10850 E Traverse Hwy, Suite 4400, Traverse City, MI 49684-1364

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesGERIATRIC MEDICINE
Medical schoolWAYNE STATE UNIVERSITY SCHOOL OF MEDICINE
Graduated 1981 (45 years in practice)
Group practice Munson Healthcare Charlevoix Hospital — 54 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare