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

Justin Walter Maroun, MD, PHD

Individual provider Surgery Physician · NPI 1578294476

Justin Walter Maroun, MD, PHD is a General Surgery in Rochester, Minnesota. Graduated from Mayo Medical School in 2022, 4 years ago. Practices with Mayo Clinic, a 4,796-clinician group and accepts Medicare assignment. Licensed in Minnesota.

Years since qualifying
4
Trained at
Mayo Medical School
Licensed in
MN
In the registry since
2022
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

200 1st St SW
Rochester, MN 55905-0001
Phone: (507) 284-2511
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

Surgery Physician (primary) Taxonomy 208600000X · Licence 74675 (MN)
Surgery Physician Taxonomy 208600000X · Licence 32502 (MN)

Record details

NPI number1578294476
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedJune 21, 2022
Last updated in NPPESJuly 13, 2023
Certification dateJuly 13, 2023

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolMAYO MEDICAL SCHOOL
Graduated 2022 (4 years in practice)
Group practice Mayo Clinic — 4796 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Rochester