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

Mr. Thaddeus Haun Amadayo Dell'Orso, PA-C

Surgical Physician Assistant in Morgantown, WV · enumerated 2009.

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

National Provider Identifier

1427281831

Verified

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Registry record

Entity type Individual (Type 1)

Name Mr. Thaddeus Haun Amadayo Dell'Orso

Credential PA-C

Sex Male

Practice address Morgantown, WV, 26505

Phone (304) 598-4478

Enumeration date Sep 1, 2009

Last updated in NPPES Oct 16, 2025

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

Taxonomy & licenses

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 1987 (WV) Primary

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License NA (NC) Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License NA (NC) 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

Where does Thaddeus Dell'Orso practice?

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

What is the NPI number for Thaddeus Dell'Orso?

The National Provider Identifier (NPI) for Thaddeus Dell'Orso is 1427281831, 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 2025-10-16.