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

Mark Schreffler, PHD

Individual provider Psychologist · NPI 1164757878

Mark Schreffler, PHD is a Clinical Psychologist in Tiverton, Rhode Island. Qualified in 1989, 37 years ago. Accepts Medicare assignment. Licensed in Rhode Island.

Years since qualifying
37
Licensed in
RI
In the registry since
2009
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

545 W Demello Dr
Tiverton, RI 02878-2772
Phone: (401) 624-6249
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence PS00614 (RI)

Record details

NPI number1164757878
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedOctober 14, 2009
Last updated in NPPESOctober 14, 2009
Mailing address545 W Demello Dr, Tiverton, RI 02878-2772

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1989 (37 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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