Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. John P. Harkness, PSY.D.
Psychologist in Hyde Park, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1891713285
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Registry record
Entity type Individual (Type 1)
Name Dr. John P. Harkness
Credential PSY.D.
Sex Male
Practice address 695 Truman Hwy, Hyde Park, MA, 02136
Phone (617) 361-4548
Enumeration date Jul 17, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice.
About the PSYD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1898019 | Other | MA | MBHP |
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
Where does John Harkness practice?
The practice location on file with NPPES is in Hyde Park, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Harkness?
The National Provider Identifier (NPI) for John Harkness is 1891713285, a Type 1 (individual) record in the CMS NPPES registry.
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.