NPPES file of Aug 9, 2026

Nancy Knudsen, LMFT

Marriage & Family Therapist · Northampton, MA

Nancy Knudsen, LMFT is a marriage & family therapist with a practice address in Northampton, Massachusetts, and NPI 1457400012, issued on Jan 10, 2007. Check the license (Massachusetts 73, 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
1457400012
Name
Nancy Knudsen
Credential
LMFT
Primary taxonomy
Marriage & Family Therapist 106H00000X
License number
73 MA
Self-reported in NPPES; status is on the state search
Practice location
53 Center St, Northampton, MA 01060
Phone
(413) 586-9424
Enumerated
Jan 10, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(413) 586-3332
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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8 nearest marriage & family therapist records → All 690 in Massachusetts → Look up another NPI →

Also registered at 53 Center St

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

  1. Katharine Baker, PH.D.Clinical Social Worker1568470623
  2. Hilary Curtis, L. M. H. C.Mental Health Counselor1225329428
  3. Nancy Guardia, LICSWSocial Worker1467460188
  4. Audrey Hall, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1790196434
  5. Jack Laforte, PH.D.Psychologist1720176019
  6. Edward Olmstead, M.ED.Mental Health Counselor1619063088

Verify Nancy Knudsen 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 73    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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Nancy Knudsen among 690 marriage & family therapist records in Massachusetts

Nancy Knudsen, LMFT is one of 690 marriage & family therapist records with a practice address in Massachusetts. 6% 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 12% of them.

  • NPI issued2007 · 12% of these records are older, 68% newer
  • In a Medicare fileNo · 6% of these records are
  • In the CMS Doctors and Clinicians fileNo · 11% of these records are
  • Record last updated2007 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 106H00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

21 marriage & family therapist records list a practice address in Northampton

They are 21 of the 1,816 NPPES records with a practice address in Northampton, and 690 marriage & family therapist records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 690 in Massachusetts → Every provider in Northampton → Marriage & Family Therapist nationwide →

The 8 marriage & family therapist records with the nearest ZIP codes

  1. Tamara Barbasch, PH.D., LMFTNorthampton, MA 010601700092376
  2. Leslie BennettNorthampton, MA 010601851544910
  3. Heidi BercoviciNorthampton, MA 010601295118479
  4. Scot CoarNorthampton, MA 010601801102603
  5. Ann Marie Dobosz, MFTNorthampton, MA 010601225408529
  6. Deborah Fine, M.ED., LMFTNorthampton, MA 010601134277544
  7. Ross Hackerson, M.A.Northampton, MA 010601740468602
  8. Celia HilsonNorthampton, MA 010601023419926

Common questions

What is Nancy Knudsen, LMFT's NPI number?

Nancy Knudsen, LMFT's National Provider Identifier (NPI) is 1457400012, issued on Jan 10, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Nancy Knudsen, LMFT located?

The NPPES record lists a practice address at 53 Center St, Northampton, MA, 01060. Phone: (413) 586-9424. Providers update this record themselves, so call before visiting.

How can I verify Nancy Knudsen, LMFT's license?

NPPES lists Massachusetts license number 73, 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.