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

Colm J Brennan, LCSW

Individual provider Clinical Social Worker · NPI 1710509906

Colm J Brennan, LCSW is a Clinical Social Worker in South Portland, Maine. Qualified in 2017, 9 years ago. Practices with Mainehealth, a 2,615-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in Maine and Pennsylvania.

Years since qualifying
9
Licensed in
ME, PA
In the registry since
2020
Specialties on file
2
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

50 Market St Ste 1A Pmb 393
South Portland, ME 04106
Phone: (207) 352-3248
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 41 Donald B Dean Dr Ste A, South Portland, ME 04106-3252 — (207) 661-6064
  • 8200 Flourtown Ave Ste 8, Wyndmoor, PA 19038-7969

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence LC19205 (ME)
Clinical Social Worker Taxonomy 1041C0700X · Licence CW021277 (PA)

Record details

NPI number1710509906
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorYes
NPI enumeratedMay 11, 2020
Last updated in NPPESNovember 3, 2025
Certification dateNovember 3, 2025

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Mainehealth — 2615 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

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