Martha E. Irwin, LICSW
Clinical Social Worker · Somerville, MA
Martha E. Irwin, LICSW is a clinical social worker with a practice address in Somerville, Massachusetts, and NPI 1699857276, issued on Oct 20, 2006. Check the license (Massachusetts 100240, as entered in NPPES) with the Massachusetts board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Martha E. Irwin
- Credential
- LICSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 100240 MA
Self-reported in NPPES; status is on the state search - Practice location
- 26 Oxford St, Somerville, MA 02143
- Phone
- (617) 628-7255
- Enumerated
- Oct 20, 2006
- Record last updated
- Feb 26, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (617) 628-2779
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 17,815 in Massachusetts → Look up another NPI →
Verify Martha E. Irwin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 100240Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Martha E. Irwin among 17,815 clinical social worker records in Massachusetts
Martha E. Irwin, LICSW is one of 17,815 clinical social worker records with a practice address in Massachusetts. 8% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than under 1% of them.
- NPI issued2006 · under 1% of these records are older, 85% newer
- In a Medicare fileNo · 8% of these records are
- In the CMS Doctors and Clinicians fileNo · 17% of these records are
- Record last updated2010 · 68% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
232 clinical social worker records list a practice address in Somerville
They are 232 of the 1,860 NPPES records with a practice address in Somerville, and 17,815 clinical social worker records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 17,815 in Massachusetts → Every provider in Somerville → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Christine Aquilino, LICSWSomerville, MA 021431386714558
- Mary Bewig, LICSWSomerville, MA 021431194779769
- Margaret Compher, LICSWSomerville, MA 021431710085717
- Beth Cowett, LICSWSomerville, MA 021431013996263
- Amy Dillingham, LICSWSomerville, MA 021431205905791
- Ruth Faris, LICSWSomerville, MA 021431356366223
- Kara Fleshman, LCSWSomerville, MA 021431881773497
- Regina Kelly, LICSWSomerville, MA 021431669543054
Common questions
What is Martha E. Irwin, LICSW's NPI number?
Martha E. Irwin, LICSW's National Provider Identifier (NPI) is 1699857276, issued on Oct 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Martha E. Irwin, LICSW located?
The NPPES record lists a practice address at 26 Oxford St, Somerville, MA, 02143. Phone: (617) 628-7255. Providers update this record themselves, so call before visiting.
How can I verify Martha E. Irwin, LICSW's license?
NPPES lists Massachusetts license number 100240, as entered by the provider. Search the Massachusetts 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. 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.