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
Show map & directions

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