NPPES file of Aug 9, 2026

Kathleen Delia Nielsen, LMHC

Mental Health Counselor · Greenfield, MA

Kathleen Delia Nielsen, LMHC is a mental health counselor with a practice address in Greenfield, Massachusetts, and NPI 1144011628, issued on May 14, 2025. Check the license (Massachusetts LMHC10003345, 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
1144011628
Name
Kathleen Delia Nielsen
Credential
LMHC
Primary taxonomy
Mental Health Counselor 101YM0800X
License number
LMHC10003345 MA
Self-reported in NPPES; status is on the state search
Practice location
13 Prospect St, Greenfield, MA 01301
Phone
(978) 319-3517
Enumerated
May 14, 2025
Record last updated
May 14, 2025
Medicare enrollment
Enrolled (PECOS I20250609001705); accepts 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 mental health counselor records → All 18,415 in Massachusetts → Look up another NPI →

Also registered at 13 Prospect St

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

  1. Jason Aldrich, LCSWSocial Worker1295483576
  2. Norie AmetBehavior Technician1760244990
  3. Yvette Cooper, MA, LMHCMental Health Counselor1841631405
  4. Melody Friedrich, LMHCClinical Social Worker1235258195
  5. Virginia Gilson, MSWClinical Social Worker1336280783
  6. Sharon O'Brien, LMHCClinical Social Worker1215056197

Verify Kathleen Delia Nielsen 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 LMHC10003345    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. Total Wellness Centers LLCGreenfield, MA

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

Kathleen Delia Nielsen among 18,415 mental health counselor records in Massachusetts

Kathleen Delia Nielsen, LMHC is one of 18,415 mental health counselor records with a practice address in Massachusetts. 7% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 90% of them.

  • NPI issued2025 · 90% of these records are older, 4% newer
  • In a Medicare fileYes · 7% of these records are
  • In the CMS Doctors and Clinicians fileYes · 10% of these records are
  • Graduated2022 · median 2014 among the 1,811 with a school on file
  • Record last updated2025 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YM0800X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

239 mental health counselor records list a practice address in Greenfield

They are 239 of the 1,251 NPPES records with a practice address in Greenfield, and 18,415 mental health counselor records in Massachusetts.

All 18,415 in Massachusetts → Every provider in Greenfield → Mental Health Counselor nationwide →

The 8 mental health counselor records with the nearest ZIP codes

  1. John Boles, LMHCGreenfield, MA 013011588607840
  2. Julie BrittonGreenfield, MA 013011134159445
  3. Darrell Brown, MHCGreenfield, MA 013011780752931
  4. Virginia Fleet, M.ED.Greenfield, MA 013011851302913
  5. Elinor Janvrin, LMHCGreenfield, MA 013011588768949
  6. Maryann Landry, EDM, LMHCGreenfield, MA 013011801996434
  7. Peter LanteigneGreenfield, MA 013011417019464
  8. Mollie Montgomery, LMHCGreenfield, MA 013011174543755

Common questions

What is Kathleen Delia Nielsen, LMHC's NPI number?

Kathleen Delia Nielsen, LMHC's National Provider Identifier (NPI) is 1144011628, issued on May 14, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Kathleen Delia Nielsen, LMHC located?

The NPPES record lists a practice address at 13 Prospect St, Greenfield, MA, 01301. Phone: (978) 319-3517. Providers update this record themselves, so call before visiting.

How can I verify Kathleen Delia Nielsen, LMHC's license?

NPPES lists Massachusetts license number LMHC10003345, 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.

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.