Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jessica Mast, CD(DONA), CLC

Q: What is the NPI number for Jessica Mast?

The National Provider Identifier (NPI) for Jessica Mast is 1023324423, a Type 1 (individual) record in the CMS NPPES registry.

Lactation Consultant (Non-RN) in Aurora, CO · enumerated 2010.

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

National Provider Identifier

1023324423

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Registry record

Entity type Individual (Type 1)

Name Jessica Mast

Credential CD(DONA), CLC

Sex Female

Practice address 18356 E Arizona Ave Unit C, Aurora, CO, 80017

Phone (720) 339-1442

Enumeration date Aug 23, 2010

Last updated in NPPES Apr 1, 2013

Taxonomy & licenses

374J00000X Doula Nursing Service Related Providers Secondary

174N00000X Lactation Consultant (Non-RN) Other Service Providers · License ALPP-35701 (CO) 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 Jessica Mast practice?

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

What is the NPI number for Jessica Mast?

The National Provider Identifier (NPI) for Jessica Mast is 1023324423, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-04-01.