Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DONNA J. MAHNEN LCSW
NPI 1215929385
Social Worker - Clinical in Denver, CO

Active since August 16, 2005
1405 FEDERAL BLVD, DENVER, CO 80204(303) 504-1500(303) 825-1711 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Donna J. Mahnen Lcsw NPPES

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

DONNA J. MAHNEN LCSW (NPI 1215929385) is an individual clinical provider in Denver, Colorado, licensed in Colorado (992535) and active in the NPI registry since August 2005.

NPPES Registry Identity

NPI1215929385
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameDONNA J. MAHNENCredential: LCSW
Location Address1405 FEDERAL BLVDDenver, CO 80204-2211
Mailing Address4141 E Dickenson PlDenver, CO 80222-6012 · (303) 504-6509 · Fax (303) 782-0916
Fax(303) 825-1711
Sole ProprietorNo
Enumeration DateAugust 16, 2005
Last NPPES UpdateJuly 13, 2026
NPI 1215929385 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License Licensed in CO · 992535
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.

1405 FEDERAL BLVD, Denver, CO 80204

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)
1405 FEDERAL BLVD
DENVER, CO 80204
Counselor (Mental Health)
1405 FEDERAL BLVD
DENVER, CO 80204
Case Manager/Care Coordinator
1405 FEDERAL BLVD
DENVER, CO 80204
Counselor
1405 FEDERAL BLVD
DENVER, CO 80204
Student in an Organized Health Care Education/Training Program
1405 FEDERAL BLVD
DENVER, CO 80204
Nurse Practitioner (Pediatrics)
1405 FEDERAL BLVD
DENVER, CO 80204
Case Manager/Care Coordinator
1405 FEDERAL BLVD
DENVER, CO 80204
Social Worker (Clinical)
1405 FEDERAL BLVD
DENVER, CO 80204

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1215929385, enumerated as an "individual" on August 16, 2005.

The provider is located at 1405 FEDERAL BLVD DENVER, CO 80204 and the phone number is (303) 504-1500.

Social Worker with taxonomy code 1041C0700X and a focus in Clinical.