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

Dr. Dale R. Johnstone, D.D.S.

Periodontics in San Clemente, CA · enumerated 2005.

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

National Provider Identifier

1225035603

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Registry record

Entity type Individual (Type 1)

Name Dr. Dale R. Johnstone

Credential D.D.S.

Sex Male

Practice address San Clemente, CA, 92672

Phone (714) 904-6808

Enumeration date Jun 30, 2005

Last updated in NPPES Jul 21, 2015

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

Taxonomy & licenses

1223P0300X Periodontics Dental Providers · License 22507 (CA) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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 Dale Johnstone practice?

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

What is the NPI number for Dale Johnstone?

The National Provider Identifier (NPI) for Dale Johnstone is 1225035603, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-07-21.