Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. David Lawrence Kessler, PHD
Psychologist in Commack, NY · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1497860084
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Registry record
Entity type Individual (Type 1)
Name Dr. David Lawrence Kessler
Credential PHD
Sex Male
Practice address 356 Veteran'S Highway, Commack, NY, 11725
Phone (631) 271-0032
Enumeration date Aug 21, 2006
Last updated in NPPES Jul 8, 2007
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 David Kessler?
The National Provider Identifier (NPI) for David Kessler is 1497860084, a Type 1 (individual) record in the CMS NPPES registry.
Where does David Kessler practice?
The practice location on file with NPPES is in Commack, NY. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.