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

Mark S Gresla, MD

Individual provider Family Medicine Physician · NPI 1467482034

Mark S Gresla, MD is a Family Practice in Decatur, Indiana. Graduated from Indiana University School of Medicine in 1984, 42 years ago. Practices with Adams County Memorial Hospital, a 83-clinician group and accepts Medicare assignment. Licensed in Indiana.

Years since qualifying
42
Trained at
Indiana University School of Medicine
Licensed in
IN
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 →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1100 Mercer Ave
Decatur, IN 46733-2303
Phone: (260) 724-2145
Fax: (260) 728-3853
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 01034460A (IN)

Record details

NPI number1467482034
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 3, 2006
Last updated in NPPESOctober 15, 2025
Certification dateOctober 15, 2025
Mailing addressPo Box 151, Decatur, IN 46733-0151

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 1984 (42 years in practice)
Group practice Adams County Memorial Hospital — 83 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Decatur