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

Individual provider Surgery Physician · NPI 1518718535

John Austin Treffalls, MD is a General Surgery in Rochester, Minnesota. Graduated from University of Texas Medical School at San Antonio in 2024, 2 years ago. Practices as a sole proprietor. Licensed in Minnesota.

Years since qualifying
2
Trained at
University of Texas Medical School at San Antonio
Licensed in
MN
In the registry since
2024
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

200 1st St SW
Rochester, MN 55905-0001
Phone: (507) 284-2511
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 80419 (MN)
Surgery Physician Taxonomy 208600000X · Licence 34312 (MN)

Record details

NPI number1518718535
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 28, 2024
Last updated in NPPESAugust 30, 2025
Certification dateAugust 30, 2025
Mailing address200 1st St Sw, Rochester, MN 55905-0001

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolUNIVERSITY OF TEXAS MEDICAL SCHOOL AT SAN ANTONIO
Graduated 2024 (2 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

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