William Edwin Grosser, MSW
Clinical Social Worker · Lenox, MA
William Edwin Grosser, MSW is a clinical social worker with a practice address in Lenox, Massachusetts, and NPI 1821201245, issued on May 8, 2007. Check the license (Massachusetts 107662, 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
- William Edwin Grosser
- Credential
- MSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 107662 MA
Self-reported in NPPES; status is on the state search - Practice location
- 715 East St, Lenox, MA 01240
- Phone
- (413) 637-2868
- Enumerated
- May 8, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 17,815 in Massachusetts → Look up another NPI →
Also registered at 715 East St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anne Grosser, LICSWClinical Social Worker1861544116
Verify William Edwin Grosser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 107662Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Edwin Grosser among 17,815 clinical social worker records in Massachusetts
William Edwin Grosser, MSW 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 2007, is newer than 15% of them.
- NPI issued2007 · 15% of these records are older, 70% newer
- In a Medicare fileNo · 8% of these records are
- In the CMS Doctors and Clinicians fileNo · 17% of these records are
- Record last updated2007 · 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).
13 clinical social worker records list a practice address in Lenox
They are 13 of the 120 NPPES records with a practice address in Lenox, 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 Lenox → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Jean Brown, MSWLenox, MA 012401558474338
- Evelyn Cass, MSWLenox, MA 012401710547112
- Jennifer Daily, LCSWLenox, MA 012401861701088
- Jean Friedman, MSW, LCSWLenox, MA 012401790913440
- Louise Grant, LICSWLenox, MA 012401033274790
- Anne Grosser, LICSWLenox, MA 012401861544116
- Joseph Jackson, LICSWLenox, MA 012401922392927
- Melanie Masdea-Dignum, MSW, ACHTLenox, MA 012401497237515
Common questions
What is William Edwin Grosser, MSW's NPI number?
William Edwin Grosser, MSW's National Provider Identifier (NPI) is 1821201245, issued on May 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William Edwin Grosser, MSW located?
The NPPES record lists a practice address at 715 East St, Lenox, MA, 01240. Phone: (413) 637-2868. Providers update this record themselves, so call before visiting.
How can I verify William Edwin Grosser, MSW's license?
NPPES lists Massachusetts license number 107662, 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.