Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

DIANA SIEBER
NPI 1912806407
Social Worker - Clinical in Fort Collins, CO

Active since November 02, 2026
4115 BOARDWALK DR, FORT COLLINS, CO 80525(970) 493-4580 Get Directions Write a Review

NPPES record added: November 2, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Diana Sieber NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DIANA SIEBER (NPI 1912806407) is an individual clinical provider in Fort Collins, Colorado and active in the NPI registry since November 2026.

NPPES Registry Identity

NPI1912806407
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameDIANA SIEBER
Location Address4115 BOARDWALK DRFort Collins, CO 80525-5945
Mailing Address1500 La Reatta CtFort Collins, CO 80521-4060
Sole ProprietorYes
Enumeration DateNovember 2, 2026
NPPES CertifiedNovember 2, 2026
✔ NPI 1912806407 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
4115 BOARDWALK DR, Fort Collins, CO 80525

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Counselor (Professional)
4115 BOARDWALK DR, SUITE 200
FORT COLLINS, CO 80525
Counselor (Professional)
4115 BOARDWALK DR, SUITE 100
FORT COLLINS, CO 80525
Counselor (Professional)
4115 BOARDWALK DR, SUITE 100
FORT COLLINS, CO 80525
Counselor (Professional)
4115 BOARDWALK DR
FORT COLLINS, CO 80525
Social Worker (Clinical)
4115 BOARDWALK DR
FORT COLLINS, CO 80525
Social Worker (Clinical)
4115 BOARDWALK DR
FORT COLLINS, CO 80525
Counselor (Mental Health)
4115 BOARDWALK DR
FORT COLLINS, CO 80525
Psychologist (Clinical)
4115 BOARDWALK DR
FORT COLLINS, CO 80525

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Diana Sieber's NPI number?

The NPI number for Diana Sieber is 1912806407. It was assigned to this individual provider in the NPPES registry on November 2, 2026.

Where is Diana Sieber located?

Diana Sieber practices at 4115 Boardwalk Dr, Fort Collins, CO 80525. The listed phone number is (970) 493-4580.

What is Diana Sieber's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

When was this NPI record last updated?

The NPPES record for Diana Sieber was last updated on November 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.