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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CALI B CLAUSSEN
NPI 1528864410
Counselor - Addiction (Substance Use Disorder) in Denver, CO

Active since February 20, 2025
2535 S DOWNING ST STE 500, DENVER, CO 80210(303) 529-1997 Get Directions Write a Review

NPPES record last updated: August 13, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Aug 13, 2026, Feb 23, 2025 (2 updates tracked since 2025).

About Cali B Claussen NPPES

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

CALI B CLAUSSEN (NPI 1528864410) is an individual addiction (substance use disorder) provider in Denver, Colorado and active in the NPI registry since February 2025.

NPPES Registry Identity

NPI1528864410
Entity TypeIndividualFemale
Primary Taxonomy101YA0400X
Provider Legal NameCALI B CLAUSSEN
Location Address2535 S DOWNING ST STE 500Denver, CO 80210-5823
Mailing Address7581 Rattlesnake DrLittleton, CO 80124-9730 · (720) 388-9692
Phone(303) 529-1997
Sole ProprietorYes
Enumeration DateFebruary 20, 2025
Last NPPES UpdateAugust 13, 20262 updates tracked since enumeration
NPPES CertifiedAugust 13, 2026
✔ NPI 1528864410 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
2535 S DOWNING ST STE 500, Denver, CO 80210
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Other Providers at the Same Location NPPES 7

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

DANIEL DWYER IV ADDC, LPCC
Counselor (Addiction (Substance Use Disorder))
2535 S DOWNING ST STE 500
DENVER, CO 80210
Denver County (303) 529-1997
MR. STEVEN C MAYS MD
Psychiatry & Neurology (Psychiatry)
2535 S DOWNING ST STE 500
DENVER, CO 80210
Denver County (303) 529-1997
TAYLOR GOULD
Counselor (Mental Health)
2535 S DOWNING ST STE 500
DENVER, CO 80210
Denver County (720) 463-0503
KIRSTEN BOWLAND
Nurse Practitioner (Psychiatric/Mental Health)
2535 S DOWNING ST STE 500
DENVER, CO 80210
Denver County (303) 529-1997
GUARDIAN RECOVERY - CURAWEST, LLC
Substance Abuse Rehabilitation Facility
2535 S DOWNING ST STE 500
DENVER, CO 80210
Denver County (561) 223-6482
ALYSSA D RESENDIZ LAC, LPCC
Counselor (Addiction (Substance Use Disorder))
2535 S DOWNING ST STE 500
DENVER, CO 80210
Denver County (720) 463-0503
ROBERT TAYLOR LAC, LPCC
Counselor (Addiction (Substance Use Disorder))
2535 S DOWNING ST STE 500
DENVER, CO 80210
Denver County (866) 523-4268

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 Cali Claussen's NPI number?

The NPI number for Cali Claussen is 1528864410. It was assigned to this individual provider in the NPPES registry on February 20, 2025.

Where is Cali Claussen located?

Cali Claussen practices at 2535 S Downing St Ste 500, Denver, CO 80210. The listed phone number is (303) 529-1997.

What is Cali Claussen's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for Cali Claussen was last updated on August 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.