Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Douglas Scott Griswold, PHD.
Psychologist in Plymouth, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1881798114
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Registry record
Entity type Individual (Type 1)
Name Dr. Douglas Scott Griswold
Credential PHD.
Sex Male
Practice address 363 Court St. Suite 1, Plymouth, MA, 02360
Phone (508) 746-8004
Fax (508) 746-8099
Enumeration date Sep 8, 2006
Last updated in NPPES Jan 15, 2016
Taxonomy & licenses
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for Douglas Griswold?
The National Provider Identifier (NPI) for Douglas Griswold is 1881798114, a Type 1 (individual) record in the CMS NPPES registry.
Where does Douglas Griswold practice?
The practice location on file with NPPES is in Plymouth, MA. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-01-15.