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

Melissa Jean Hacker, CADC-II

Addiction (Substance Use Disorder) Counselor in San Bernardino, CA · enumerated 2018 · practices at Inland Valley Drug and Alcohol Recovery Services.

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

National Provider Identifier

1437625969

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Melissa Jean Hacker

Credential CADC-II

Sex Female

Practice address San Bernardino, CA, 92410

Phone (909) 889-6519

Enumeration date Oct 23, 2018

Last updated in NPPES Mar 13, 2025

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 A053940219 (CA) Primary

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 Melissa Hacker practice?

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

What is the NPI number for Melissa Hacker?

The National Provider Identifier (NPI) for Melissa Hacker is 1437625969, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-13.