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

William Ferril, MD

Individual provider General Practice Physician · NPI 1285737635

William Ferril, MD is a General Practice Physician in Whitefish, Montana. Practices as a sole proprietor. Licensed in Montana.

Licensed in
MT
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

550 A Central Ave
Whitefish, MT 59937
Phone: (406) 862-3308
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

General Practice Physician (primary) Taxonomy 208D00000X · Licence 5332 (MT)

Record details

NPI number1285737635
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 7, 2006
Last updated in NPPESJuly 9, 2007
Mailing addressPo Box 324, Whitefish, MT 59937-2773