MARY CLARE O'BRIEN MSP
NPI 1689075913
Counselor - Mental Health in Fall River, MA
About Mary Clare O'brien Msp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY CLARE O'BRIEN MSP (NPI 1689075913) is an individual mental health provider in Fall River, Massachusetts and active in the NPI registry since September 2014. She is enrolled in Medicare PECOS and is a graduate of Other (2011).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mary Clare O'brien Msp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Mary Clare O'brien reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Somerset, MA 02726
- Reassigned Medicare billing, Massachusetts enrollment
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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.
FALL RIVER, MA 02720
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 Mary Clare O'brien's NPI number?
The NPI number for Mary Clare O'brien is 1689075913. It was assigned to this individual provider in the NPPES registry on September 5, 2014.
Where is Mary Clare O'brien located?
Mary Clare O'brien practices at 2425 Highland Ave, Fall River, MA 02720. The listed phone number is (240) 645-5410.
What is Mary Clare O'brien's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.
Is Mary Clare O'brien enrolled in Medicare?
Yes. Mary Clare O'brien is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Mary Clare O'brien's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Clare O'brien reassigns Medicare benefits to The Transformation Collective LLC (Somerset, MA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mary Clare O'brien's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Clare O'brien accept?
Health plans from Harvard Pilgrim Health Care list Mary Clare 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 Mary Clare O'brien was last updated on September 26, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.