Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Leslee Rae Kassing, PH.D.
Psychologist in Fairfield, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1427184738
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Registry record
Entity type Individual (Type 1)
Name Dr. Leslee Rae Kassing
Credential PH.D.
Sex Female
Practice address 103 Bodin Cir, Travis Afb Va, Fairfield, CA, 94535
Phone (707) 437-1854
Enumeration date Feb 23, 2007
Last updated in NPPES Jan 5, 2023
Taxonomy & licenses
103T00000X Psychologist Behavioral Health & Social Service Providers · License PSY 20185 (CA) Secondary
103T00000X Psychologist Behavioral Health & Social Service Providers · License 2019018302 (MO) Primary
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 Leslee Kassing?
The National Provider Identifier (NPI) for Leslee Kassing is 1427184738, a Type 1 (individual) record in the CMS NPPES registry.
Where does Leslee Kassing practice?
The practice location on file with NPPES is in Fairfield, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Joann Basaran Family Medicine Physician · Travis Afb, CA NPI 1184610305 Myo Chang Internal Medicine Physician · Fairfield, CA NPI 1003899279 Martinez Vamc Department of Veterans Affairs (VA) Pharmacy · Travis Afb, CA NPI 1528016649 Cherie Dillon Pharmacist · Travis Afb, CA NPI 1851331060 Martinez Vamc VA Clinic/Center · Fairfield, CA NPI 1679513089 Savita Nallapa Internal Medicine Physician · Fairfield, CA NPI 1699784165 Christen Dardenne Physician Assistant · Fairfield, CA NPI 1972702710 Carlton Spradley Addiction (Substance Use Disorder) Counselor · Fairfield, CA NPI 1396997169
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-01-05.