NPPES file of Aug 9, 2026

Vivien Eva Weiss, LMHC

Specialist · Northampton, MA

Vivien Eva Weiss, LMHC is a specialist with a practice address in Northampton, Massachusetts, and NPI 1811035983, issued on Feb 2, 2007. Check the license (Massachusetts 4517, 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, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811035983
Name
Vivien Eva Weiss
Credential
LMHC
Primary taxonomy
Specialist 174400000X
License number
4517 MA
Self-reported in NPPES; status is on the state search
Practice location
100 King St, Northampton, MA 01060
Phone
(413) 584-9350
Enumerated
Feb 2, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(413) 587-3148
Medicare enrollment
Enrolled (PECOS I20240222000304); may accept Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest specialist records → All 1,096 in Massachusetts → Look up another NPI →

Also registered at 100 King St

A shared address usually means a shared clinic or building; it does not show who employs whom.

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  2. Ann Cleaveland, M.S.W.Clinical Social Worker1932247475
  3. Julia Feeney, L.I.C.S.W.Clinical Social Worker1457390015
  4. Kristin Grant, LICSWClinical Social Worker1376607580
  5. Elise Starr, LICSWClinical Social Worker1245616606
  6. Joan Swerdlow-Brandt, MSWClinical Social Worker1497800221

Verify Vivien Eva Weiss 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 4517    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.

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Vivien Eva Weiss among 1,096 specialist records in Massachusetts

Vivien Eva Weiss, LMHC is one of 1,096 specialist records with a practice address in Massachusetts. 15% 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 31% of them.

  • NPI issued2007 · 31% of these records are older, 54% newer
  • In a Medicare fileNo · 15% of these records are
  • In the CMS Doctors and Clinicians fileYes · 12% of these records are
  • Graduated1980 · median 1989 among the 128 with a school on file
  • Record last updated2007 · 82% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Specialist providers in Massachusetts

There are 1,096 specialist records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,096 in Massachusetts → Every provider in Northampton → Specialist nationwide →

The 8 specialist records with the nearest ZIP codes

  1. Michelle Helms, M.D.Northampton, MA 010601346553468
  2. Tanya Lieberman, IBCLCNorthampton, MA 010601073722468
  3. Elizabeth McAnulty, MS OTRNorthampton, MA 010601649302043
  4. Callahan MurphyNorthampton, MA 010601306727300
  5. John RollinsonNorthampton, MA 010601801050042
  6. Asa Spelman, SANorthampton, MA 010601659047207
  7. Michele Feldheim, MTFlorence, MA 010621558725739
  8. Melissa LalliPalmer, MA 010691568642320

Common questions

What is Vivien Eva Weiss, LMHC's NPI number?

Vivien Eva Weiss, LMHC's National Provider Identifier (NPI) is 1811035983, issued on Feb 2, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Vivien Eva Weiss, LMHC located?

The NPPES record lists a practice address at 100 King St, Northampton, MA, 01060. Phone: (413) 584-9350. Providers update this record themselves, so call before visiting.

How can I verify Vivien Eva Weiss, LMHC's license?

NPPES lists Massachusetts license number 4517, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.