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

Mrs. Allison Flanders Hitzeman, OTRL, CHT

Specialist in Scottsdale, AZ · enumerated 2007 · practices at Ditare, Inc.

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

National Provider Identifier

1558411009

Verified

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Registry record

Entity type Individual (Type 1)

Name Mrs. Allison Flanders Hitzeman

Credential OTRL, CHT

Sex Female

Practice address Scottsdale, AZ, 85250

Phone (480) 766-0274

Enumeration date Jan 10, 2007

Last updated in NPPES Jan 22, 2015

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 2269 (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 Allison Hitzeman practice?

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

What is the NPI number for Allison Hitzeman?

The National Provider Identifier (NPI) for Allison Hitzeman is 1558411009, 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 2015-01-22.