Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Lynn Marsh Matteson, PSYD

Individual provider Clinical Psychologist · NPI 1114041084

Dr. Lynn Marsh Matteson, PSYD is a Clinical Psychologist in Northampton, Massachusetts. Qualified in 1991, 35 years ago. Practices as a sole proprietor, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
35
Licensed in
MA
In the registry since
2007
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

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Practice location Address checks out

199 Main St
Northampton, MA 01060-3151
Phone: (413) 585-8660
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 6454 (MA)

Record details

NPI number1114041084
Entity typeIndividual (Type 1)
GenderFemale
Credentials PSYD
Sole proprietorYes
NPI enumeratedMarch 18, 2007
Last updated in NPPESJuly 8, 2007

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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