Registry data as of Aug 27, 2026

Sari Alter, LICSW

Social Worker · Lexington, MA

Sari Alter, LICSW is a social worker with a practice address in Lexington, Massachusetts, and NPI 1861973398, issued on Aug 23, 2018. Check the license (Massachusetts 114433, 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.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1861973398
Name
Sari Alter
Credential
LICSW
Primary taxonomy
Social Worker 104100000X
License number
114433 MA
Self-reported in NPPES; status is on the state search
Practice location
157 Wood St, Lexington, MA 02421
Phone
(781) 910-6791
Enumerated
Aug 23, 2018
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Sari Alter in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license 114433
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Find the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

22 social worker records list a Lexington practice address

They are 22 of the 1,467 NPPES records with a Lexington practice address, and 5,822 social worker records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other social worker records in Massachusetts

  1. Chelsea Aaron, MSW, LCSWStoneham, MA1679129761
  2. Flannery AbbeyCambridge, MA1508604273
  3. Sarah Abbott, LSWFramingham, MA1023168945
  4. Sharon AbdallaSpringfield, MA1538759782
  5. Rana AbdallahCambridge, MA1689220204
  6. Ali Abdullahi, SWChelsea, MA1134412158
  7. Nicholas AbrahamWorcester, MA1023555208
  8. Betsy AbramsCambridge, MA1639654361
  9. Debra Abrams, LICSWCambridge, MA1508084070
  10. Nancy Abrams, LSWCambridge, MA1477670685

Common questions

What is Sari Alter, LICSW's NPI number?

Sari Alter, LICSW's National Provider Identifier (NPI) is 1861973398, issued on Aug 23, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Sari Alter, LICSW located?

The NPPES record lists a practice address at 157 Wood St, Lexington, MA, 02421. Phone: (781) 910-6791. Providers update this record themselves, so call before visiting.

How can I verify Sari Alter, LICSW's license?

NPPES lists Massachusetts license number 114433, 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.