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

Dr. Mark A Lange, PSYD

Individual provider Clinical Psychologist · NPI 1538227855

Dr. Mark A Lange, PSYD is a Clinical Psychologist in Northampton, Massachusetts. Practices as a sole proprietor. Licensed in Massachusetts.

Licensed in
MA
In the registry since
2006
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

51 Locust St
Northampton, MA 01060-2045
Phone: (413) 585-8608
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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 3686 (MA)

Record details

NPI number1538227855
Entity typeIndividual (Type 1)
GenderMale
Credentials PSYD
Sole proprietorYes
NPI enumeratedDecember 6, 2006
Last updated in NPPESJuly 8, 2007

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