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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Brendan S O'Rourke, PHD

Psychologist in Houston, TX · enumerated 2006 · practices at New Essence Health Care Inc..

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

National Provider Identifier

1922109263

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Registry record

Entity type Individual (Type 1)
Name Dr. Brendan S O'Rourke
Credential PHD
Sex Female
Practice address Houston, TX, 77042
Phone (713) 266-2261
Fax (713) 266-2212
Enumeration date Sep 26, 2006
Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License 22605 (TX) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier Type State Issuer
T63L Other TX BCBS
156305 Other TX VALUE OPTIONS INSURANCE

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.

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Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Brendan O'Rourke?
Brendan O'Rourke is registered in NPPES with the primary taxonomy of Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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