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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Andrew Duncan Penn, RN, NP, CNS

Psychiatric/Mental Health Nurse Practitioner in La Jolla, CA · enumerated 2006.

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

National Provider Identifier

1861564312

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Registry record

Entity type Individual (Type 1)
Name Mr. Andrew Duncan Penn
Credential RN, NP, CNS
Sex Male
Practice address 4180 La Jolla Village Dr Ste 240-250, La Jolla, CA, 92037
Phone (415) 793-9240
Enumeration date Nov 13, 2006
Last updated in NPPES Nov 5, 2025

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 621643 (CA) Secondary
364SP0808X Psychiatric/Mental Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 2311 (CA) Secondary
363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 15914 (CA) Secondary
363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 15914 (CA) Primary
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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.

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Frequently asked questions

What is the NPI number for Andrew Penn?
The National Provider Identifier (NPI) for Andrew Penn is 1861564312, a Type 1 (individual) record in the CMS NPPES registry.
Where does Andrew Penn practice?
The practice location on file with NPPES is in La Jolla, CA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-05.