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

Dr. Thomas A Oas, MD

Individual provider Occupational Medicine Physician · NPI 1104876010

Dr. Thomas A Oas, MD is an Occupational Medicine Physician in Northfield, 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.

See every abbreviation used in this directory →

Practice location Address checks out

710 Division St S
Northfield, MN 55057-2468
Phone: (507) 646-1494
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Occupational Medicine Physician (primary) Taxonomy 2083X0100X · Licence 21058 (MN)

Record details

NPI number1104876010
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 11, 2006
Last updated in NPPESJuly 13, 2026
Mailing address710 Division St S, Northfield, MN 55057-2468