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

James Peter Heyboer II, MD

Individual provider Internal Medicine Physician · NPI 1255548442

James Peter Heyboer II, MD is an Internal Medicine in Grand Haven, Michigan. Graduated from Medical College of Wisconsin in 2006, 20 years ago. Practices with Mercy Physician Network, a 110-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
20
Trained at
Medical College of Wisconsin
Licensed in
MI
In the registry since
2007
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

1310 Wisconsin St Ste 100
Grand Haven, MI 49417-2472
Phone: (616) 296-1600
Fax: (616) 296-1602
Show map & directions

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

Additional practice locations (1)

  • 1150 E Sherman Blvd Ste 1100, Muskegon, MI 49444-4607 — (231) 672-7800

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 4301509045 (MI)
Pediatrics Physician Taxonomy 208000000X · Licence 4301509045 (MI)

Record details

NPI number1255548442
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 17, 2007
Last updated in NPPESAugust 18, 2023
Certification dateAugust 18, 2023

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesPEDIATRIC MEDICINE
Medical schoolMEDICAL COLLEGE OF WISCONSIN
Graduated 2006 (20 years in practice)
Group practice Mercy Physician Network — 110 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Grand Haven