Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Douglas Owen Lipp, PHD

Q: What is the NPI number for Douglas Lipp?

The National Provider Identifier (NPI) for Douglas Lipp is 1295800597, a Type 1 (individual) record in the CMS NPPES registry.

Clinical Psychologist in Leesburg, VA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1295800597

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Registry record

Entity type Individual (Type 1)

Name Dr. Douglas Owen Lipp

Credential PHD

Sex Male

Practice address Riverside Counseling Center, 44084 Riverside Parkway Suite 240, Leesburg, VA, 20176

Phone (703) 724-0200

Fax (703) 724-4093

Enumeration date Nov 21, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 0810003425 (VA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Douglas Lipp practice?

The practice location on file with NPPES is in Leesburg, VA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Douglas Lipp?

The National Provider Identifier (NPI) for Douglas Lipp is 1295800597, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.