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Search › Colorado › Clinical Social Worker

Tiffany Siefken, LCSW/LISW

NPI 1366068082 · on the registry since 2020

Practice

Address
2244 Miles House Ave Apt 108
Fort Collins, CO 80525
Phone
(319) 316-2262
Fax
(888) 375-1723

Registry record

Primary taxonomy
Clinical Social Worker
1041C0700X
Also registered as
Clinical Social Worker
Clinical Social Worker
Licence states on file
IL, IA, CO
From the registry's licence fields, which are often incomplete.
Sex
Female
Record last updated
2025-08-27

Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in Colorado