Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Thomas Dennis Geary, PHD
Psychologist in Houston, TX · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1689668774
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Registry record
Entity type Individual (Type 1)
Name Dr. Thomas Dennis Geary
Credential PHD
Sex Male
Practice address 17115 Red Oak Dr, Ste 109, Houston, TX, 77090
Phone (281) 893-4111
Fax (281) 893-8082
Enumeration date Sep 6, 2005
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 Thomas Geary?
The National Provider Identifier (NPI) for Thomas Geary is 1689668774, a Type 1 (individual) record in the CMS NPPES registry.
Where does Thomas Geary practice?
The practice location on file with NPPES is in Houston, TX. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Vinona Vohra Pediatrics Physician · Houston, TX NPI 1093717456 Jeffery Jones Psychologist · Houston, TX NPI 1487648481 Samuel Carson Marriage & Family Therapist · Houston, TX NPI 1942294970 Lawrence Ginsberg Psychiatry Physician · Houston, TX NPI 1851385835 Terry Hugg Psychiatry Physician · Houston, TX NPI 1760476741 Patricia Wampler Social Worker · Houston, TX NPI 1487648366 Joseph Liu Pain Medicine (Anesthesiology) Physician · Houston, TX NPI 1902897275 Tammy Maaz Mental Health Counselor · Houston, TX NPI 1003871427
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.