NPI Portal NPI Lookup & Verification

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

Ms. Melissa Jane Ladner, RAS

Addiction (Substance Use Disorder) Counselor in El Cajon, CA · enumerated 2007.

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

National Provider Identifier

1922215060

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Registry record

Entity type Individual (Type 1)
Name Ms. Melissa Jane Ladner
Credential RAS
Sex Female
Practice address El Cajon, CA, 92020
Phone (619) 820-0006
Fax (619) 442-1101
Enumeration date May 17, 2007
Last updated in NPPES Jul 30, 2007

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

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License L0412061209 (CA) Primary

Other identifiers

Identifier Type State Issuer
373727 Other CA PROVIDER NUMBER

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.

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Frequently asked questions

What is the NPI number for Melissa Ladner?
The National Provider Identifier (NPI) for Melissa Ladner is 1922215060, a Type 1 (individual) record in the CMS NPPES registry.
Where does Melissa Ladner practice?
The practice location on file with NPPES is in El Cajon, CA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-30.