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

William J Thieman MD PC

Organization Family Medicine Physician · NPI 1457536187

William J Thieman MD PC is a Family Medicine Physician in Fort Collins, Colorado. Licensed in Colorado. Registered with an NPI since 2007.

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

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Practice location Address checks out

1217 E Elizabeth Ste 1
Fort Collins, CO 80524-4040
Phone: (970) 484-7245
Fax: (970) 484-1398
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 19190 (CO)

Record details

NPI number1457536187
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Eileen Thieman — Office Manager Corporate Secretary · (970) 484-7245
NPI enumeratedDecember 31, 2007
Last updated in NPPESDecember 31, 2007
Mailing address1217 East Elizabeth, Suite 1, Fort Collins, CO 80524-4040

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