Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Matthew J Seidel, MD

Orthopaedic Surgery Physician in Phoenix, AZ · enumerated 2006.

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

National Provider Identifier

1376523399

Verified

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Registry record

Entity type Individual (Type 1)

Name Matthew J Seidel

Credential MD

Sex Male

Practice address 4614 E Shea Blvd, Suite D-160, Phoenix, AZ, 85028

Phone (602) 258-8500

Fax (602) 258-8510

Enumeration date Jan 17, 2006

Last updated in NPPES May 11, 2017

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 32887 (AZ) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
960874	Medicaid	AZ	-

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 Matthew Seidel practice?

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

What is the NPI number for Matthew Seidel?

The National Provider Identifier (NPI) for Matthew Seidel is 1376523399, 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 2017-05-11.