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

Jonna Ann Maas, MD

Individual provider Pediatrics Physician · NPI 1699187831

Jonna Ann Maas, MD is an Internal Medicine in Marshall, Minnesota. Graduated from University of Minnesota Medical School in 2018, 8 years ago. Practices with Avera Marshall, a 100-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Minnesota.

Years since qualifying
8
Trained at
University of Minnesota Medical School
Licensed in
MN
In the registry since
2014
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

300 S Bruce St
Marshall, MN 56258-1934
Phone: (507) 532-9661
Fax: (507) 537-9053
Show map & directions

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

Additional practice locations (1)

  • 420 Delaware Street Se Phillips Wangensteen Building, Minneapolis, MN 55455 — (612) 624-0990

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 61915 (MN)
Pediatrics Physician Taxonomy 208000000X · Licence 61915 (MN)

Record details

NPI number1699187831
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 22, 2014
Last updated in NPPESOctober 12, 2018

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesPEDIATRIC MEDICINE
Medical schoolUNIVERSITY OF MINNESOTA MEDICAL SCHOOL
Graduated 2018 (8 years in practice)
Group practice Avera Marshall — 100 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Marshall