Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Nancy N Stark, RN, ANP, PMHNP, APNP

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

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

National Provider Identifier

1659483071

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Registry record

Entity type Individual (Type 1)

Name Nancy N Stark

Credential RN, ANP, PMHNP, APNP

Sex Female

Practice address 6333 Telegraph Ave, Oakland, CA, 94609

Phone (510) 923-1099

Enumeration date Aug 31, 2006

Last updated in NPPES Dec 19, 2018

Taxonomy & licenses

363LC1500X Community Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 10258 (CA) Secondary

363LP2300X Primary Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 10258 (CA) Secondary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 10258 (CA) Primary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 518409 (CA) Secondary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 10258 (CA) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 184455 (MA) Secondary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

Other identifiers

Identifier	Type	State	Issuer
35515	Other	CA	UCSF PROVIDER NUMBER
201102900B	Medicaid	KS	-
077834	Other	CA	SF DPH CHN

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 Nancy Stark?

Nancy Stark 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 2018-12-19.