Megan Collins Williamson, LICSW
Clinical Social Worker · Holyoke, MA
Megan Collins Williamson, LICSW is a clinical social worker with a practice address in Holyoke, Massachusetts, and NPI 1255889184, issued on Sep 20, 2016. Check the license (Massachusetts 122537, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Megan Collins Williamson
- Credential
- LICSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 122537 MA
Self-reported in NPPES; status is on the state search - Practice location
- 98 Lower Westfield RD, Holyoke, MA 01040
- Phone
- (413) 533-5201
- Enumerated
- Sep 20, 2016
- Record last updated
- May 29, 2026
- Medicare enrollment
- Enrolled (PECOS I20200206001734); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 17,815 in Massachusetts → Look up another NPI →
Also registered at 98 Lower Westfield RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Hanna AkotoCommunity Health Worker1841064896
- Maria AlbanCounselor1740684414
- Enock AsanteCommunity Health Worker1114791167
- Katrina Banks, PT, DPT, CSRSPhysical Therapist1164872362
- Edward Barowsky, DCChiropractor1205029568
- Erica CarlsonSchool Social Worker1063149276
Verify Megan Collins 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 122537Check 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
- Servicenet IncHolyoke, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Megan Collins Williamson among 17,815 clinical social worker records in Massachusetts
Megan Collins Williamson, 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. Its NPI, issued in 2016, is newer than 58% of them.
- NPI issued2016 · 58% of these records are older, 38% newer
- In a Medicare fileYes · 8% of these records are
- In the CMS Doctors and Clinicians fileYes · 17% of these records are
- Graduated2017 · median 2004 among the 3,059 with a school on file
- Record last updated2026 · 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).
146 clinical social worker records list a practice address in Holyoke
They are 146 of the 1,961 NPPES records with a practice address in Holyoke, and 17,815 clinical social worker records in Massachusetts.
All 17,815 in Massachusetts → Every provider in Holyoke → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Theresa Cain, MSWHolyoke, MA 010401831282011
- Karen Darley, LCSW, LICSWHolyoke, MA 010401033213533
- Beth Eisenberg, LICSWHolyoke, MA 010401972675361
- Theresa Hammond, MSWHolyoke, MA 010401508823527
- Annie Lapensee, LICSWHolyoke, MA 010401043390784
- Jane Laskey, MSW, LICSWHolyoke, MA 010401750454039
- Joan Lesser, LICSW, PHDHolyoke, MA 010401811068968
- Aimee Letson, LICSWHolyoke, MA 010401184716292
Common questions
What is Megan Collins Williamson, LICSW's NPI number?
Megan Collins Williamson, LICSW's National Provider Identifier (NPI) is 1255889184, issued on Sep 20, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Megan Collins Williamson, LICSW located?
The NPPES record lists a practice address at 98 Lower Westfield RD, Holyoke, MA, 01040. Phone: (413) 533-5201. Providers update this record themselves, so call before visiting.
How can I verify Megan Collins Williamson, LICSW's license?
NPPES lists Massachusetts license number 122537, 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.