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

Individual provider Specialist · NPI 1639155773

Dr. Thomas A Onstad, MD is a Specialist in Eugene, Oregon. Licensed in Oregon. Registered with an NPI since 2005.

Licensed in
OR
In the registry since
2005
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

923 Country Club Rd Ste 100
Eugene, OR 97401-2296
Phone: (541) 343-1629
Fax: (541) 485-5944
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence MD07372 (OR)

Record details

NPI number1639155773
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 20, 2005
Last updated in NPPESJuly 13, 2026

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