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

Dr. Mary Ellen Jachec, MD

Individual provider Internal Medicine Physician · NPI 1104037324

Dr. Mary Ellen Jachec, MD is an Internal Medicine Physician in Ann Arbor, Michigan. Practices as a sole proprietor. Licensed in Michigan.

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.

See every abbreviation used in this directory →

Practice location Address checks out

1675 Weatherstone Dr
Ann Arbor, MI 48108-3359
Phone: (734) 669-0986
Show map & directions

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

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 4301405999 (MI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 4301405999 (MI)

Record details

NPI number1104037324
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 28, 2007
Last updated in NPPESSeptember 11, 2025

Other providers in Ann Arbor