Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Melissa Kay, PSY.D.
Psychologist in Deerfield, IL · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1639336183
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Registry record
Entity type Individual (Type 1)
Name Dr. Melissa Kay
Credential PSY.D.
Sex Female
Practice address 121 W Saint Andrews Ln, Deerfield, IL, 60015
Phone (847) 502-5587
Enumeration date May 21, 2008
Last updated in NPPES Apr 17, 2020
Taxonomy & licenses
PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice.
About the PSYD 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
Where does Melissa Kay practice?
The practice location on file with NPPES is in Deerfield, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Melissa Kay?
The National Provider Identifier (NPI) for Melissa Kay is 1639336183, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-04-17.