Tiffany Siefken, LCSW/LISW
NPI 1366068082 · Clinical Social Worker · Fort Collins, CO
Tiffany Siefken, LCSW/LISW is a Clinical Social Worker provider in Fort Collins, CO (NPI 1366068082).
Provider details
- NPI number
- 1366068082
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW/LISW
- Sex
- Female
- Sole proprietor
- No
- License
- 149.028517 (IL)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-06-18
- Last updated
- 2025-08-27
- Certified
- 2025-08-27
Frequently asked questions
- What is Tiffany Siefken's NPI number?
- Tiffany Siefken's National Provider Identifier (NPI) is 1366068082, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tiffany Siefken's specialty?
- Tiffany Siefken is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Tiffany Siefken located?
- Tiffany Siefken's practice location on file with NPPES is 2244 Miles House Ave Apt 108, Fort Collins, CO 80525-4191.
- What is Tiffany Siefken's phone number?
- The practice phone number listed in the NPPES registry for Tiffany Siefken is (319) 316-2262.
- Is Tiffany Siefken's NPI active?
- Yes — Tiffany Siefken's NPI (1366068082) is active in the NPPES registry as of the last update on 2025-08-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.