NPPES file of Aug 9, 2026

Jonah Bayer

Mental Health Counselor · Williamstown, MA

Jonah Bayer is a mental health counselor with a practice address in Williamstown, Massachusetts, and NPI 1235809096, issued on Sep 14, 2021. Check the license (Massachusetts LMHC10003468, 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
1235809096
Name
Jonah Bayer
Primary taxonomy
Mental Health Counselor 101YM0800X
License number
LMHC10003468 MA
Self-reported in NPPES; status is on the state search
Practice location
105 Harrison Ave, Williamstown, MA 01267
Phone
(413) 599-3420
Enumerated
Sep 14, 2021
Record last updated
Oct 1, 2025
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 Jonah Bayer 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 LMHC10003468    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

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7 mental health counselor records list a practice address in Williamstown

They are 7 of the 139 NPPES records with a practice address in Williamstown, and 18,415 mental health counselor records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 7 in Williamstown → All 18,415 in Massachusetts → Every provider in Williamstown →

Other mental health counselor records in Massachusetts

  1. Casandra Aasmundsen, MAWorcester, MA1104234442
  2. Maryam AbalkhailHolyoke, MA1275035131
  3. Daniela AbarcaSpringfield, MA1871262006
  4. Lorena Abarr, LMHC, CADCAmherst, MA1902178858
  5. Laura AbascianoDedham, MA1336446137
  6. Tatyana AbashinaSpringfield, MA1902013113
  7. Diana AbathGreenfield, MA1679371942
  8. Bryan Abbott, MSTaunton, MA1306671987
  9. Carolee Abbott, LMHCHyannis, MA1013030485
  10. Rebeca AbboudJamaica Plain, MA1588991525

Common questions

What is Jonah Bayer's NPI number?

Jonah Bayer's National Provider Identifier (NPI) is 1235809096, issued on Sep 14, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Jonah Bayer located?

The NPPES record lists a practice address at 105 Harrison Ave, Williamstown, MA, 01267. Phone: (413) 599-3420. Providers update this record themselves, so call before visiting.

How can I verify Jonah Bayer's license?

NPPES lists Massachusetts license number LMHC10003468, 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.