Lynn Marsh Matteson, PSY.D.
Clinical Psychologist · Northampton, MA
Lynn Marsh Matteson, PSY.D. is a clinical psychologist with a practice address in Northampton, Massachusetts, and NPI 1114041084, issued on Mar 18, 2007. Check the license (Massachusetts 6454, 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.
- Name
- Lynn Marsh Matteson
- Credential
- PSY.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 6454 MA
Self-reported in NPPES; status is on the state search - Practice location
- 199 Main St, Northampton, MA 01060
- Phone
- (413) 585-8660
- Enumerated
- Mar 18, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20050302000729); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 3,185 in Massachusetts → Look up another NPI →
Also registered at 199 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tammy Bringaze, PH.D.Mental Health Counselor1306486741
- Julie Mencher, LICSWClinical Social Worker1790844546
Verify Lynn Marsh Matteson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 6454Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Lynn Marsh Matteson among 3,185 clinical psychologist records in Massachusetts
Lynn Marsh Matteson, PSY.D. is one of 3,185 clinical psychologist records with a practice address in Massachusetts. 12% 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 30% of them.
- NPI issued2007 · 30% of these records are older, 50% newer
- In a Medicare fileNo · 12% of these records are
- In the CMS Doctors and Clinicians fileYes · 24% of these records are
- Graduated1991 · median 2000 among the 777 with a school on file
- Record last updated2007 · 71% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
64 clinical psychologist records list a practice address in Northampton
They are 64 of the 1,816 NPPES records with a practice address in Northampton, and 3,185 clinical psychologist records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 3,185 in Massachusetts → Every provider in Northampton → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Benjamin Addleson, PH.D.Northampton, MA 010601376554063
- Mark Dean, PH.D.Northampton, MA 010601821012774
- Denise Elliott, PSY.D.Northampton, MA 010601831187749
- Amy Fowler, PSY.D.Northampton, MA 010601891707865
- Donna Gilman, PSY.D.Northampton, MA 010601164461232
- Judith Goldman, PHDNorthampton, MA 010601972512317
- Maryanna Ham, ED.D.Northampton, MA 010601790728541
- Marie Hartwell-Walker, ED.D.Northampton, MA 010601982632139
Common questions
What is Lynn Marsh Matteson, PSY.D.'s NPI number?
Lynn Marsh Matteson, PSY.D.'s National Provider Identifier (NPI) is 1114041084, issued on Mar 18, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Lynn Marsh Matteson, PSY.D. located?
The NPPES record lists a practice address at 199 Main St, Northampton, MA, 01060. Phone: (413) 585-8660. Providers update this record themselves, so call before visiting.
How can I verify Lynn Marsh Matteson, PSY.D.'s license?
NPPES lists Massachusetts license number 6454, 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.
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.