NPPES file of Aug 9, 2026

William Bernard Dwinnells, LMHC

Mental Health Counselor · Ashland, MA

William Bernard Dwinnells, LMHC is a mental health counselor with a practice address in Ashland, Massachusetts, and NPI 1003980665, issued on Nov 17, 2006. Check the license (Massachusetts 6209, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1003980665
Name
William Bernard Dwinnells
Credential
LMHC
Primary taxonomy
Mental Health Counselor 101YM0800X
License number
6209 MA
Self-reported in NPPES; status is on the state search
Practice location
40 Spyglass Hill Dr, Ashland, MA 01721
Phone
(978) 254-4119
Enumerated
Nov 17, 2006
Record last updated
Feb 8, 2022
Medicare enrollment
Enrolled (PECOS I20240212003098); accepts Medicare assignment
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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Verify William Bernard Dwinnells 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 6209
    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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Bills Medicare through one group practice

  1. Riverside Community Care IncNorwood, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

10 mental health counselor records list a practice address in Ashland

They are 10 of the 167 NPPES records with a practice address in Ashland, and 18,415 mental health counselor records in Massachusetts.

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 William Bernard Dwinnells, LMHC's NPI number?

William Bernard Dwinnells, LMHC's National Provider Identifier (NPI) is 1003980665, issued on Nov 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Bernard Dwinnells, LMHC located?

The NPPES record lists a practice address at 40 Spyglass Hill Dr, Ashland, MA, 01721. Phone: (978) 254-4119. Providers update this record themselves, so call before visiting.

How can I verify William Bernard Dwinnells, LMHC's license?

NPPES lists Massachusetts license number 6209, 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. Medicare files from data.cms.gov. 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.