Colm J. Brennan, LCSW
Clinical Social Worker · South Portland, ME
Colm J. Brennan, LCSW is a clinical social worker with a practice address in South Portland, Maine, and NPI 1710509906, issued on May 11, 2020. Check the license (Maine LC19205, as entered in NPPES) with the Maine board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Colm J. Brennan
- Credential
- LCSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License numbers
- LC19205 ME
CW021277 PA
Self-reported in NPPES; status is on the state search - Practice location
- 50 Market Street, Suite 1A, South Portland, ME 04106
- Phone
- (207) 352-3248
- Enumerated
- May 11, 2020
- Record last updated
- Nov 3, 2025
- Medicare enrollment
- Enrolled (PECOS I20251114000098); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 3,673 in Maine → Look up another NPI →
Verify Colm J. Brennan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maine board licenses this profession
Search for license LC19205Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 2 group practices
- Gksw Crystal Group AssociatesWyndmoor, PA
- MainehealthPortland, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Colm J. Brennan among 3,673 clinical social worker records in Maine
Colm J. Brennan, LCSW is one of 3,673 clinical social worker records with a practice address in Maine. 19% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 79% of them.
- NPI issued2020 · 79% of these records are older, 18% newer
- In a Medicare fileYes · 19% of these records are
- In the CMS Doctors and Clinicians fileYes · 26% of these records are
- Graduated2017 · median 2008 among the 939 with a school on file
- Record last updated2025 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
143 clinical social worker records list a practice address in South Portland
They are 143 of the 1,143 NPPES records with a practice address in South Portland, and 3,673 clinical social worker records in Maine.
All 3,673 in Maine → Every provider in South Portland → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Joni Altshuler, LCSWSouth Portland, ME 041061235145079
- Cecille Barron Morse, LCSWS Portland, ME 041061205941689
- John Cole, LCSWSouth Portland, ME 041061093816795
- Ann Gayer, LCSWSouth Portland, ME 041061669494969
- Maureen Greer, LCSW LADCSouth Portland, ME 041061215962584
- Dorothy Heggie, LCSWSouth Portland, ME 041061043272578
- Donald Kent, LCSW, CCSSouth Portland, ME 041061285683763
- Judith Moll, LCSWSouth Portland, ME 041061396753117
Common questions
What is Colm J. Brennan, LCSW's NPI number?
Colm J. Brennan, LCSW's National Provider Identifier (NPI) is 1710509906, issued on May 11, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Colm J. Brennan, LCSW located?
The NPPES record lists a practice address at 50 Market Street, Suite 1A, South Portland, ME, 04106. Phone: (207) 352-3248. Providers update this record themselves, so call before visiting.
How can I verify Colm J. Brennan, LCSW's license?
NPPES lists Maine license number LC19205, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.