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

John S Boydstun, MD

Individual provider Gastroenterology Physician · NPI 1316040553

John S Boydstun, MD is a Gastroenterology Physician in Galesburg, Illinois. Licensed in Illinois. Registered with an NPI since 2006.

Licensed in
IL
In the registry since
2006
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

3315 N Seminary St
Galesburg, IL 61401-1251
Phone: (309) 344-1000
Fax: (309) 344-1054
Show map & directions

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 36076859 (IL)

Record details

NPI number1316040553
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 6, 2006
Last updated in NPPESJuly 8, 2007
Mailing address3315 N Seminary St, Galesburg, IL 61401-1251

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