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

Dr. Mark Jay McGillem, MD

Individual provider Internal Medicine Physician · NPI 1700877339

Dr. Mark Jay McGillem, MD is an Internal Medicine Physician in Mishawaka, Indiana. Licensed in Indiana. Registered with an NPI since 2005.

Licensed in
IN
In the registry since
2005
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

5215 Holy Cross Pkwy
Mishawaka, IN 46545-1469
Phone: (574) 335-2521
Fax: (574) 335-2262
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 01051194A (IN)

Record details

NPI number1700877339
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 2, 2005
Last updated in NPPESMarch 15, 2012
Mailing address810 Park Pl, Mishawaka, IN 46545-3520

Other providers in Mishawaka