Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Alexandra Lee Chadderdon, PSY.D.

Clinical Psychologist in Aurora, CO · enumerated 2019.

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

National Provider Identifier

1417506221

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Registry record

Entity type Individual (Type 1)

Name Dr. Alexandra Lee Chadderdon

Credential PSY.D.

Sex Female

Practice address 13001 E 17th Pl, Aurora, CO, 80045

Phone (719) 210-3550

Enumeration date Sep 5, 2019

Last updated in NPPES Dec 2, 2019

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 0005097 (CO) Primary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential

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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Alexandra Chadderdon?

Alexandra Chadderdon is registered in NPPES with the primary taxonomy of Clinical Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Amanda Ying Medical Physician Assistant · Aurora, CO NPI 1356339329 Lynne Koerner Nurse Practitioner · Aurora, CO NPI 1154392546 Jennifer Krupp Student in an Organized Health Care Education/Training Program · Aurora, CO NPI 1417908427 Christine Wheeler Student in an Organized Health Care Education/Training Program · Aurora, CO NPI 1205869195 Culleen Rohde Family Nurse Practitioner · Aurora, CO NPI 1730107855 Warren Snider Anatomic Pathology & Clinical Pathology Physician · Aurora, CO NPI 1467466706 R Hockman Clinical Psychologist · Aurora, CO NPI 1316053648 Darah Meyer Clinical Social Worker · Aurora, CO NPI 1609900919

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-12-02.