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

John S Macdonald, MD

Individual provider Internal Medicine Physician · NPI 1215038906

John S Macdonald, MD is an Internal Medicine in Saint Johns, Michigan. Qualified in 1976, 50 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
50
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

110 W Higham St
Saint Johns, MI 48879-1559
Phone: (989) 224-0646
Fax: (989) 224-0929
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 4301038398 (MI)

Record details

NPI number1215038906
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 26, 2006
Last updated in NPPESMarch 27, 2014
Mailing address110 W Higham St, Saint Johns, MI 48879-1559

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesFAMILY PRACTICE
Medical schoolOTHER
Graduated 1976 (50 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Saint Johns