Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mallory Andrzejak

Family Nurse Practitioner in Getzville, NY · enumerated 2019 · practices at Horizon Health Services Inc.

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

National Provider Identifier

1790347672

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Registry record

Entity type Individual (Type 1)

Name Mallory Andrzejak

Sex Female

Practice address 55 Dodge Rd, Getzville, NY, 14068

Phone (716) 831-2700

Enumeration date Jul 1, 2019

Last updated in NPPES Oct 13, 2021

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 345270 (NY) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F345270-01 (NY) Primary

163W00000X Registered Nurse Nursing Service Providers · License 672613 (NY) Secondary

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

What is the NPI number for Mallory Andrzejak?

The National Provider Identifier (NPI) for Mallory Andrzejak is 1790347672, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mallory Andrzejak practice?

The practice location on file with NPPES is in Getzville, NY. 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 2021-10-13.