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

Dr. John Nicholas Petrou, PHD

Individual provider Clinical Psychologist · NPI 1497244982

Dr. John Nicholas Petrou, PHD is a Clinical Psychologist in Quincy, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2018.

Licensed in
MA
In the registry since
2018
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

1 Dennis Ryan Pkwy
Quincy, MA 02169-5348
Phone: (617) 984-4282
Fax: (617) 472-9370
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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 6480 (MA)

Record details

NPI number1497244982
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedMay 9, 2018
Last updated in NPPESMay 9, 2018
Mailing address1 Dennis Ryan Pkwy, Quincy, MA 02169-5348

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