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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.

FOLIUM O'BRIEN LICSW
NPI 1265165906
Social Worker - Clinical in Amherst, MA

Active since July 08, 2022PECOS Enrolled
26 S PROSPECT ST STE 5, AMHERST, MA 01002(413) 421-9898 Get Directions Write a Review

NPPES record last updated: July 21, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Jul 21, 2026, Sep 19, 2025, Aug 4, 2025 and 1 more (4 updates tracked since 2022).

About Folium O'brien Licsw NPPES

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

FOLIUM O'BRIEN LICSW (NPI 1265165906) is an individual clinical provider in Amherst, Massachusetts, licensed in Massachusetts (LICSW1140665) and active in the NPI registry since July 2022. He is enrolled in Medicare PECOS, maintains a secondary practice location in Boston, and is a graduate of Other (2022).

NPPES Registry Identity

NPI1265165906
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameFOLIUM O'BRIENCredential: LICSW
Location Address26 S PROSPECT ST STE 5Amherst, MA 01002-2268
Mailing Address26 S Prospect St Ste 5Amherst, MA 01002-2268 · (413) 421-9898
Phone(413) 421-9898
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateJuly 8, 2022
Last NPPES UpdateJuly 21, 20264 updates tracked since enumeration
NPPES CertifiedJuly 21, 2026
✔ NPI 1265165906 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Licenses✔ Licensed in MA · LICSW1140665✔ Licensed in ME · LC26036✔ Licensed in CT · 16120✔ Licensed in MI · 6801120306✔ Licensed in PA · CW026277
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.
26 S PROSPECT ST STE 5, Amherst, MA 01002
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Secondary Practice Location 1

Location 1101 Federal St Ste 1900Boston, MA 02110-1861 · Phone (323) 205-7088

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, McLaren Health Plan Community, Priority Health.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Folium O'brien Licsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9830661826
PECOS Enrollment IDI20260625001146
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 01002 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 $58.86 – $177.36
Typical copayment $0.00 (range $14.71 – $44.34)
Most-billed visit code NA
Established Patient
$73.22 typical visit price
range $19.11 – $144.84
Typical copayment $18.30 (range $4.77 – $36.21)
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 3

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

WEST MASSACHUSETTS COUNSELING CENTER, PLLC
Social Worker (Clinical)
26 S PROSPECT ST STE 5
AMHERST, MA 01002
Hampshire County (413) 421-9898
NOTCH PSYCHOLOGICAL SERVICES LLC
Psychologist (Clinical)
26 S PROSPECT ST STE 5
AMHERST, MA 01002
Hampshire County (413) 887-9553
COLLEEN HSU, LLC
Counselor (Professional)
26 S PROSPECT ST STE 5
AMHERST, MA 01002
Hampshire County (413) 629-9295

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 Folium O'brien's NPI number?

The NPI number for Folium O'brien is 1265165906. It was assigned to this individual provider in the NPPES registry on July 8, 2022.

Where is Folium O'brien located?

Folium O'brien practices at 26 S Prospect St Ste 5, Amherst, MA 01002. The listed phone number is (413) 421-9898.

What is Folium O'brien's specialty?

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

Is Folium O'brien enrolled in Medicare?

Yes. Folium O'brien is registered in the Medicare PECOS enrollment system.

What insurance does Folium O'brien accept?

Health plans from Anthem Blue Cross and Blue Shield, McLaren Health Plan Community and Priority Health list Folium O'brien as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Folium O'brien was last updated on July 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 37 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.