Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Timothy James Stacy, ACNP

Acute Care Nurse Practitioner in Sherman Oaks, CA · enumerated 2005.

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

National Provider Identifier

1457356479

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Registry record

Entity type Individual (Type 1)

Name Timothy James Stacy

Credential ACNP

Sex Male

Practice address 4955 Van Nuys Blvd, Suite 502, Sherman Oaks, CA, 91403

Phone (818) 325-0200

Fax (818) 325-0210

Enumeration date Jun 16, 2005

Last updated in NPPES Feb 23, 2010

Taxonomy & licenses

363LA2100X Acute Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 15005 (CA) Primary

Other identifiers

Identifier	Type	State	Issuer
NP0150050	Medicaid	CA	-
2571636	Medicaid	CA	-
B1180Z	Other	CA	MEDICARE PTAN

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 Timothy Stacy?

Timothy Stacy is registered in NPPES with the primary taxonomy of Acute Care 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 2010-02-23.