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

Mark Stephen Flanagan, MD

Individual provider Surgery Physician · NPI 1154457257

Mark Stephen Flanagan, MD is a Surgery Physician in Olympia, Washington. Licensed in North Dakota. Registered with an NPI since 2007.

Licensed in
ND
In the registry since
2007
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

700 Lilly Road NE Group Health
Olympia, WA 98506-5196
Phone: (360) 923-7530
Fax: (360) 923-7599
Show map & directions

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

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence PT 10464 (ND)
Surgery Physician Taxonomy 208600000X · Licence 10464 (ND)

Record details

NPI number1154457257
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 26, 2007
Last updated in NPPESJuly 21, 2008
Mailing address320 Westlake Ave N, Suite 100, 6hq, E2n, 6hp Group Health Permanente, Seattle, WA 98109

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