Margaret Lee Seiler, M.S.W.
Clinical Social Worker · Northampton, MA
Margaret Lee Seiler, M.S.W. is a clinical social worker with a practice address in Northampton, Massachusetts, and NPI 1306922463, issued on Oct 31, 2006. Check the license (Massachusetts 106806, 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
- Margaret Lee Seiler
- Credential
- M.S.W.
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 106806 MA
Self-reported in NPPES; status is on the state search - Practice location
- 264 Elm St, Northampton, MA 01060
- Phone
- (413) 493-1883
- Enumerated
- Oct 31, 2006
- Record last updated
- Nov 5, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090611000528); 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 264 Elm St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Margaret Lee Seiler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 106806Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Margaret Lee Seiler among 17,815 clinical social worker records in Massachusetts
Margaret Lee Seiler, M.S.W. 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 fileYes · 17% of these records are
- Graduated1984 · 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).
366 clinical social worker records list a practice address in Northampton
They are 366 of the 1,816 NPPES records with a practice address in Northampton, 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 Northampton → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Seth Dunn, MSW LICSWNorthampton, MA 010601285687590
- Phyllis Eckstein, MSW-LICSWNorthampton, MA 010601154305415
- Phoebe Fiddler, LICSWNorthampton, MA 010601366432072
- Melysa Friedman, MSW, LICSWNorthampton, MA 010601952350217
- Jaime Gershman, LICSWNorthampton, MA 010601659324945
- Heidi Haas, LICSWNorthampton, MA 010601013904929
- Susan Karas, L.I.C.S.W.Northampton, MA 010601023055886
- Jill Marland, LICSW MSWNorthampton, MA 010601104812205
Common questions
What is Margaret Lee Seiler, M.S.W.'s NPI number?
Margaret Lee Seiler, M.S.W.'s National Provider Identifier (NPI) is 1306922463, issued on Oct 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Lee Seiler, M.S.W. located?
The NPPES record lists a practice address at 264 Elm St, Northampton, MA, 01060. Phone: (413) 493-1883. Providers update this record themselves, so call before visiting.
How can I verify Margaret Lee Seiler, M.S.W.'s license?
NPPES lists Massachusetts license number 106806, 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.