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Hilary Kate Holmes, PMHNP

Psychiatric/Mental Health Nurse Practitioner in West Lake Hills, TX · enumerated 2017 · practices at Optimal Psychiatry.

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

National Provider Identifier

1245755479

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Registry record

Entity type Individual (Type 1)
Name Hilary Kate Holmes
Credential PMHNP
Sex Female
Practice address 5656 Bee Caves Rd Ste D205, West Lake Hills, TX, 78746
Phone (512) 710-1200
Enumeration date Aug 9, 2017
Last updated in NPPES Jun 1, 2021

Taxonomy & licenses

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License C-RXN.0001363-C-NP (CO) Secondary
363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP134820 (TX) Primary

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 Hilary Holmes?
Hilary Holmes is registered in NPPES with the primary taxonomy of Psychiatric/Mental Health Nurse Practitioner. 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 2021-06-01.