Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Catherine E. Graham, PSY.D.
Clinical Psychologist in Largo, MD · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1548484231
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Registry record
Entity type Individual (Type 1)
Name Dr. Catherine E. Graham
Credential PSY.D.
Sex Female
Practice address 9701 Apollo Dr, Suite 341, Largo, MD, 20774
Phone (301) 237-0131
Fax (301) 808-0943
Enumeration date Apr 12, 2007
Last updated in NPPES Dec 19, 2010
Taxonomy & licenses
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 04344 (MD) Primary
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY1000609 (DC) Secondary
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY003113 (GA) Secondary
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 Catherine Graham practice?
The practice location on file with NPPES is in Largo, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Catherine Graham?
The National Provider Identifier (NPI) for Catherine Graham is 1548484231, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Saundra Walker Harris Social Worker · Largo, MD NPI 1245278837 Frances James Clinical Social Worker · Largo, MD NPI 1215979232 Saundra Walker Harris Mental Health Counselor · Largo, MD NPI 1093845562 Safi Lynch Clinical Social Worker · Upper Marlboro, MD NPI 1003034158 New Dimension Therapeutic Services LLC Clinical Social Worker · Largo, MD NPI 1386840452 Dana Hubbard Clinical Social Worker · Largo, MD NPI 1720272305 Sonja Williams Marriage & Family Therapist · Largo, MD NPI 1427297746 Robyn Williams Mental Health Counselor · Largo, MD NPI 1134456312
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-19.