Emily Williamson, LCSW
Clinical Social Worker · Cambridge, MA
Emily Williamson, LCSW is a clinical social worker with a practice address in Cambridge, Massachusetts, and NPI 1942837737, issued on Mar 24, 2020. Check the license (Massachusetts 224451, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Emily Williamson
- Credential
- LCSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 224451 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1493 Cambridge St, Cambridge, MA 02139
- Phone
- (617) 665-2054
- Enumerated
- Mar 24, 2020
- Record last updated
- Mar 24, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20240312001780); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 17,815 in Massachusetts → Look up another NPI →
Also registered at 1493 Cambridge St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Emily Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 224451Check 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 one group practice
- Atrius Health IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Emily Williamson among 17,815 clinical social worker records in Massachusetts
Emily Williamson, LCSW 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. Its NPI, issued in 2020, is newer than 79% of them.
- NPI issued2020 · 79% of these records are older, 17% newer
- In a Medicare fileYes · 8% of these records are
- In the CMS Doctors and Clinicians fileYes · 17% of these records are
- Graduated2018 · median 2004 among the 3,059 with a school on file
- Record last updated2020 · 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).
545 clinical social worker records list a practice address in Cambridge
They are 545 of the 5,145 NPPES records with a practice address in Cambridge, and 17,815 clinical social worker records in Massachusetts.
All 17,815 in Massachusetts → Every provider in Cambridge → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Audra Bartz, LICSWCambridge, MA 021391497720528
- Maya Hanelin, LICSWCambridge, MA 021391518932656
- Susan Hileman, LICSWCambridge, MA 021391639157795
- Araceli Isenia, LICSWCambridge, MA 021391679548754
- Sheila Jewett, MSW LICSWCambridge, MA 021391710973144
- Michael Langlois, LICSWCambridge, MA 021391275578528
- Elise McDonnell, MSW, LICSWCambridge, MA 021391235111790
- Dawn Metcalf, LICSWCambridge, MA 021391760457840
Common questions
What is Emily Williamson, LCSW's NPI number?
Emily Williamson, LCSW's National Provider Identifier (NPI) is 1942837737, issued on Mar 24, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Emily Williamson, LCSW located?
The NPPES record lists a practice address at 1493 Cambridge St, Cambridge, MA, 02139. Phone: (617) 665-2054. Providers update this record themselves, so call before visiting.
How can I verify Emily Williamson, LCSW's license?
NPPES lists Massachusetts license number 224451, 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. 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.