Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Antonia Christine Krotzer, COTA/L

Recreational Therapist Assistant in Litchfield Park, AZ · enumerated 2020.

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

National Provider Identifier

1376160507

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Registry record

Entity type Individual (Type 1)

Name Antonia Christine Krotzer

Credential COTA/L

Sex Female

Practice address 4870 N Litchfield Rd Ste B101, Litchfield Park, AZ, 85340

Phone (623) 935-6040

Fax (480) 553-9334

Enumeration date Jul 3, 2020

Last updated in NPPES Jul 3, 2020

Taxonomy & licenses

226000000X Recreational Therapist Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 006750 (AZ) 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 Antonia Krotzer practice?

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

What is the NPI number for Antonia Krotzer?

The National Provider Identifier (NPI) for Antonia Krotzer is 1376160507, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-07-03.