CAELIN NICHELLE O'BRIEN LCSW
NPI 1497119119
Social Worker - Clinical in Castle Rock, CO

Active since April 08, 2016PECOS EnrolledAccepts Medicare Assignment
4404 BARRANCA LN UNIT 101, CASTLE ROCK, CO 80104(720) 733-5270(720) 733-5271 Get Directions Write a Review

NPPES record last updated: March 22, 2023. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Mar 22, 2023, Mar 1, 2017 (2 updates tracked since 2017).

About Caelin Nichelle O'brien Lcsw NPPES

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

CAELIN NICHELLE O'BRIEN LCSW (NPI 1497119119) is an individual clinical provider in Castle Rock, Colorado, licensed in Colorado (CSW.09927242) and active in the NPI registry since April 2016. She is enrolled in Medicare PECOS and is a graduate of Other (2016).

NPPES Registry Identity

NPI1497119119
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameCAELIN NICHELLE O'BRIENCredential: LCSW
Location Address4404 BARRANCA LN UNIT 101Castle Rock, CO 80104-7432
Mailing Address2695 Rocky Mountain Ave Ste 150Loveland, CO 80538-9071 · (970) 624-4123 · Fax (970) 490-4173
Fax(720) 733-5271
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateApril 8, 2016
Last NPPES UpdateMarch 22, 20232 updates tracked since enumeration
NPPES CertifiedMarch 22, 2023
NPI 1497119119 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License Licensed in CO · CSW.09927242
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.
Also ListedBehavior AnalystTaxonomy 103K00000X
4404 BARRANCA LN UNIT 101, Castle Rock, CO 80104

Other Names 1

Former Name (1)Caelin Nichelle Strom Lcsw

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Caelin Nichelle O'brien Lcsw is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9931611183
PECOS Enrollment IDI20250624000794
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$0.00 typical visit price
range $58.06 – $174.82
Typical copayment $0.00 (range $14.51 – $43.70)
Most-billed visit code NA
Established Patient
$72.20 typical visit price
range $18.88 – $142.79
Typical copayment $18.05 (range $4.72 – $35.69)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 9

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

Physician Assistant (Surgical)
4404 BARRANCA LN UNIT 101
CASTLE ROCK, CO 80104
Physical Therapist
4404 BARRANCA LN UNIT 101
CASTLE ROCK, CO 80104
Clinic/Center (Urgent Care)
4404 BARRANCA LN UNIT 101
CASTLE ROCK, CO 80104
Physical Therapist
4404 BARRANCA LN UNIT 101
CASTLE ROCK, CO 80104
Nurse Practitioner (Family)
4404 BARRANCA LN UNIT 101
CASTLE ROCK, CO 80104
Physical Therapist
4404 BARRANCA LN UNIT 101
CASTLE ROCK, CO 80104
Social Worker (Clinical)
4404 BARRANCA LN UNIT 101
CASTLE ROCK, CO 80104
Preventive Medicine (Occupational Medicine)
4404 BARRANCA LN UNIT 101
CASTLE ROCK, CO 80104

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 Caelin O'brien's NPI number?

The NPI number for Caelin O'brien is 1497119119. It was assigned to this individual provider in the NPPES registry on April 8, 2016. The provider is also known as Caelin Nichelle Strom Lcsw.

Where is Caelin O'brien located?

Caelin O'brien practices at 4404 Barranca Ln Unit 101, Castle Rock, CO 80104. The listed phone number is (720) 733-5270.

What is Caelin O'brien's specialty?

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

Is Caelin O'brien enrolled in Medicare?

Yes. Caelin O'brien is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Caelin O'brien was last updated on March 22, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.