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

Dr. William M Iannacone, MD

Individual provider Orthopaedic Surgery Physician · NPI 1316033129

Dr. William M Iannacone, MD is an Orthopaedic Surgery Physician in Lewistown, Montana. Licensed in Montana. Registered with an NPI since 2006.

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

310 Wendell Ave Ste 5
Lewistown, MT 59457-2267
Phone: (406) 538-1456
Fax: (406) 538-1422
Show map & directions

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

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence 8732 (MT)

Record details

NPI number1316033129
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 5, 2006
Last updated in NPPESJuly 8, 2007

Other providers in Lewistown