Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alison Berrien, R.N.

Registered Nurse in Modesto, CA · enumerated 2015.

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

National Provider Identifier

1023401551

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Registry record

Entity type Individual (Type 1)

Name Alison Berrien

Credential R.N.

Sex Female

Practice address 1441 Florida Ave, Modesto, CA, 95350

Phone (209) 576-3637

Enumeration date Mar 9, 2015

Last updated in NPPES Mar 9, 2015

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 837211 (CA) Primary

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
837211	Other	CA	REGISTERED NURSE

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.

Read the full guide → Validate an NPI →

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 Alison Berrien?

Alison Berrien is registered in NPPES with the primary taxonomy of Registered Nurse. 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 2015-03-09.