Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Alyssa Tonelli, D.O.

Family Medicine Physician in Santa Ana, CA · enumerated 2016.

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

National Provider Identifier

1750837993

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Registry record

Entity type Individual (Type 1)

Name Dr. Alyssa Tonelli

Credential D.O.

Sex Female

Practice address 1400 N Main St, Santa Ana, CA, 92701

Phone (714) 426-5400

Enumeration date Aug 28, 2016

Last updated in NPPES Jul 3, 2025

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 15215 (CA) Primary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 6061 (OK) Secondary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Alyssa Tonelli practice?

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

What is the NPI number for Alyssa Tonelli?

The National Provider Identifier (NPI) for Alyssa Tonelli is 1750837993, 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 2025-07-03.