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

Mark Zacharjasz, MD

Individual provider Family Medicine Physician · NPI 1346621059

Mark Zacharjasz, MD is a Family Practice in Oskaloosa, Iowa. Graduated from Saint Louis University School of Medicine in 2015, 11 years ago. Practices with Mahaska County Hospital, a 124-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Iowa and Missouri.

Years since qualifying
11
Trained at
Saint Louis University School of Medicine
Licensed in
IA, MO
In the registry since
2015
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

1229 C Ave E
Oskaloosa, IA 52577
Phone: (641) 672-3100
Show map & directions

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

Additional practice locations (2)

  • 615 S New Ballas Rd, Saint Louis, MO 63141-8221 — (314) 251-8888
  • 615 S New Ballas Rd, Saint Louis, MO 63141-8221 — (314) 251-8888

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 45154 (IA)
Family Medicine Physician Taxonomy 207Q00000X · Licence 2015019270 (MO)

Record details

NPI number1346621059
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 18, 2015
Last updated in NPPESDecember 28, 2018
Mailing address1229 C Ave E, Oskaloosa, IA 52577-4246

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolSAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2015 (11 years in practice)
Group practice Mahaska County Hospital — 124 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Oskaloosa