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

Dr. Nancy Henderson Chaffee, MD

Individual provider Internal Medicine Physician · NPI 1467604231

Dr. Nancy Henderson Chaffee, MD is an Internal Medicine Physician in Mount Vernon, Washington. Practices as a sole proprietor. Licensed in Arizona and Washington.

Licensed in
AZ, WA
In the registry since
2008
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

307 S 13th St Ste 200
Mount Vernon, WA 98274-4100
Phone: (360) 848-8500
Fax: (360) 419-3700
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 30096 (AZ)
Internal Medicine Physician Taxonomy 207R00000X · Licence 25240 (WA)

Record details

NPI number1467604231
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 10, 2008
Last updated in NPPESFebruary 26, 2010
Mailing address307 S 13th St, Suite 200, Mount Vernon, WA 98274-4100

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