Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Monica L O'Brien, NP

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1639459498

Monica L O'Brien, NP is a Nurse Practitioner in Brockton, Massachusetts. Qualified in 2012, 14 years ago. Practices with Signature Healthcare Medical Group Inc, a 248-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
14
Licensed in
MA
In the registry since
2011
Specialties on file
2
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

680 Centre St
Brockton, MA 02302-3308
Phone: (508) 941-7228
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2155 Main St, Springfield, MA 01104-3301 — (413) 736-0395

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence RN231518 (MA)
Registered Nurse Taxonomy 163W00000X · Licence RN231518 (MA)

Record details

NPI number1639459498
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedAugust 25, 2011
Last updated in NPPESApril 25, 2022
Certification dateApril 5, 2022

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice Signature Healthcare Medical Group Inc — 248 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Brockton