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Patrick Liang

Psychiatric/Mental Health Nurse Practitioner in San Rafael, CA · enumerated 2025 · practices at Ritter Center.

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

National Provider Identifier

1518756725

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Registry record

Entity type Individual (Type 1)
Name Patrick Liang
Sex Male
Practice address San Rafael, CA, 94901
Phone (415) 457-8182
Fax (415) 457-7020
Enumeration date May 5, 2025
Last updated in NPPES Jul 29, 2026

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

Taxonomy & licenses

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95037719 (CA) Primary
163W00000X Registered Nurse Nursing Service Providers · License 281471 (TN) Secondary

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 Patrick Liang?
Patrick Liang 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 2026-07-29.