Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Roy David Greenberg, PHD
Psychologist in Germantown, TN · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1043289291
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Dr. Roy David Greenberg
Credential PHD
Sex Male
Practice address 7516 Enterprise, Ste 1, Germantown, TN, 38138
Phone (901) 755-5802
Fax (901) 757-2249
Enumeration date Mar 17, 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
Where does Roy Greenberg practice?
The practice location on file with NPPES is in Germantown, TN. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Roy Greenberg?
The National Provider Identifier (NPI) for Roy Greenberg is 1043289291, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.