Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Caelin Nichelle O'Brien, LCSW

Individual provider Behavior Analyst · NPI 1497119119

Caelin Nichelle O'Brien, LCSW is a Clinical Social Worker in Castle Rock, Colorado. Qualified in 2016, 10 years ago. Practices with Poudre Valley Medical Group LLC, a 2,416-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Colorado.

Years since qualifying
10
Licensed in
CO
In the registry since
2016
Specialties on file
2
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

4404 Barranca Ln Unit 101
Castle Rock, CO 80104-7432
Phone: (720) 733-5270
Fax: (720) 733-5271
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence CSW.09927242 (CO)
Behavior Analyst Taxonomy 103K00000X

Record details

NPI number1497119119
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorNo
NPI enumeratedApril 8, 2016
Last updated in NPPESMarch 22, 2023
Certification dateMarch 22, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Poudre Valley Medical Group Llc — 2416 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Castle Rock