Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Amanda Rae Mason, CADC

Q: What is the NPI number for Amanda Mason?

The National Provider Identifier (NPI) for Amanda Mason is 1639648843, a Type 1 (individual) record in the CMS NPPES registry.

Addiction (Substance Use Disorder) Counselor in Ottumwa, IA · enumerated 2018 · practices at Southern Iowa Economic Development Assoc.

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

National Provider Identifier

1639648843

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Registry record

Entity type Individual (Type 1)

Name Amanda Rae Mason

Credential CADC

Sex Female

Practice address 310 W. Main St, Ottumwa, IA, 52501

Phone (641) 683-6747

Fax (641) 683-6317

Enumeration date Nov 16, 2018

Last updated in NPPES Nov 16, 2018

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 18060 (IA) 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 Amanda Mason practice?

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

What is the NPI number for Amanda Mason?

The National Provider Identifier (NPI) for Amanda Mason is 1639648843, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-11-16.