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

Dr. Richard Leigh Duvall, PHD

Individual provider Marriage & Family Therapist · NPI 1407985716

Dr. Richard Leigh Duvall, PHD is a Clinical Psychologist in Glastonbury, Connecticut. Qualified in 1983, 43 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
43
Licensed in
CT
In the registry since
2007
Specialties on file
2
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

155 Sycamore St Ste C
Glastonbury, CT 06033-4548
Phone: (860) 633-9491
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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 1147 (CT)
Marriage & Family Therapist Taxonomy 106H00000X · Licence 593 (CT)

Record details

NPI number1407985716
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedMarch 4, 2007
Last updated in NPPESNovember 7, 2025
Certification dateNovember 7, 2025

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1983 (43 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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