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

Dr. William C Cullis, MD

Individual provider Family Medicine Physician · NPI 1174685374

Dr. William C Cullis, MD is a Family Medicine Physician in Ronan, 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

126 6th Ave SW
Ronan, MT 59864-2600
Phone: (406) 676-3600
Fax: (406) 676-3738
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 8425 (MT)

Record details

NPI number1174685374
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedDecember 14, 2006
Last updated in NPPESJuly 8, 2007
Mailing address44997 Beaver Dr, Ronan, MT 59864-8840

Other providers in Ronan