Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Matthew Stephen Loos, MD

Q: What is the NPI number for Matthew Loos?

The National Provider Identifier (NPI) for Matthew Loos is 1558568261, a Type 1 (individual) record in the CMS NPPES registry.

Surgery Physician in Morgantown, WV · enumerated 2007.

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

National Provider Identifier

1558568261

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Registry record

Entity type Individual (Type 1)

Name Dr. Matthew Stephen Loos

Credential MD

Sex Male

Practice address 101 Stadium Dr, Morgantown, WV, 26506

Phone (304) 589-4000

Enumeration date Jun 27, 2007

Last updated in NPPES Feb 20, 2009

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 22406 (WV) Primary

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

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Matthew Loos 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 Matthew Loos?

The National Provider Identifier (NPI) for Matthew Loos is 1558568261, a Type 1 (individual) record in the CMS NPPES registry.

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Daniel Martin Diagnostic Radiology Physician · Morgantown, WV NPI 1396721817 Jeanne Grimes Certified Registered Nurse Anesthetist · Morgantown, WV NPI 1245203140 Peter Perrotta Blood Banking & Transfusion Medicine Physician · Morgantown, WV NPI 1871568279 Harold Williams Anatomic Pathology & Clinical Pathology Physician · Morgantown, WV NPI 1588639900 Kathryn Skitarelic Anatomic Pathology & Clinical Pathology Physician · Morgantown, WV NPI 1417922824 Lisa Robinson Anatomic Pathology & Clinical Pathology Physician · Morgantown, WV NPI 1275508608 William Chang Anatomic Pathology Physician · Morgantown, WV NPI 1104891167 James Coad Anatomic Pathology & Clinical Pathology Physician · Morgantown, WV NPI 1710952783

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-02-20.