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

Gavin O'Brien, LICSW

Individual provider Clinical Social Worker · NPI 1659431211

Gavin O'Brien, LICSW is a Clinical Social Worker in Manchester, New Hampshire. Qualified in 2012, 14 years ago. Practices with The Mental Health Center of Greater Manchester, a 87-clinician group and accepts Medicare assignment. Licensed in New Hampshire.

Years since qualifying
14
Licensed in
NH
In the registry since
2006
What do these letters mean?
LICSW — Licensed Independent Clinical Social Worker
The title some states use for an independently practising clinical social worker.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1555 Elm St
Manchester, NH 03101-1203
Phone: (603) 668-4111
Fax: (603) 628-7757
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 1838 (NH)

Record details

NPI number1659431211
Entity typeIndividual (Type 1)
GenderMale
Credentials LICSW
Sole proprietorNo
NPI enumeratedDecember 12, 2006
Last updated in NPPESApril 1, 2021
Certification dateApril 1, 2021

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice The Mental Health Center Of Greater Manchester — 87 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Manchester