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

Dr. Zachary Leo Freer, DMD

Endodontics in Chula Vista, CA · enumerated 2017 · practices at John W Masters DDS Inc.

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

National Provider Identifier

1306367792

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Registry record

Entity type Individual (Type 1)

Name Dr. Zachary Leo Freer

Credential DMD

Sex Male

Practice address Chula Vista, CA, 91910

Phone (619) 426-2250

Enumeration date Jul 6, 2017

Last updated in NPPES Jul 6, 2017

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

Taxonomy & licenses

1223E0200X Endodontics Dental Providers · License 101384 (CA) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD 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

What is the NPI number for Zachary Freer?

The National Provider Identifier (NPI) for Zachary Freer is 1306367792, a Type 1 (individual) record in the CMS NPPES registry.

Where does Zachary Freer practice?

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

Other providers at this practice address

Browse all →

David Hudson Endodontics · Chula Vista, CA NPI 1205931771 John W Masters DDS Inc Endodontics · Chula Vista, CA NPI 1255436739

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-07-06.