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

John Alan Schaffner, MD

Individual provider Gastroenterology Physician · NPI 1235118639

John Alan Schaffner, MD is a Gastroenterology Physician in Rochester, Minnesota. Licensed in Minnesota. Registered with an NPI since 2006.

Licensed in
MN
In the registry since
2006
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

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 41232 (MN)

Record details

NPI number1235118639
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 13, 2006
Last updated in NPPESJanuary 24, 2025
Certification dateJanuary 24, 2025

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