Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mrs. Diana Marie Allocco, FNP-BC

Family Nurse Practitioner in Walnut Creek, CA · enumerated 2013 · practices at Longs Drug Stores California LLC.

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

National Provider Identifier

1275961609

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Registry record

Entity type Individual (Type 1)

Name Mrs. Diana Marie Allocco

Credential FNP-BC

Sex Female

Practice address Walnut Creek, CA, 94598

Phone (925) 938-7616

Enumeration date Oct 22, 2013

Last updated in NPPES Jul 18, 2014

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

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95000215 (CA) Primary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 0024171070 (VA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Diana Allocco practice?

The practice location on file with NPPES is in Walnut Creek, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Diana Allocco?

The National Provider Identifier (NPI) for Diana Allocco is 1275961609, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-07-18.