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

William L. Tonidandel, MD, PC

Organization Pain Medicine (Anesthesiology) Physician · NPI 1326251414

William L. Tonidandel, MD, PC is a Pain Medicine (Anesthesiology) Physician in Helena, Montana. Licensed in Montana. Registered with an NPI since 2007.

Licensed in
MT
In the registry since
2007
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

See every abbreviation used in this directory →

Practice location Address checks out

1 Medical Park Dr
Helena, MT 59601-8022
Phone: (406) 457-8244
Fax: (406) 457-8236
Show map & directions

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

Specialties & licences

Pain Medicine (Anesthesiology) Physician (primary) Taxonomy 207LP2900X · Licence 10314 (MT)

Record details

NPI number1326251414
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official William Tonidandel — Physician Owner · (406) 457-8244
Other names William Tonidandel M.D.
NPI enumeratedMay 7, 2007
Last updated in NPPESSeptember 25, 2007
Mailing address433 Clarke St, Helena, MT 59601-6227

Other providers in Helena