NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Oliver Hansen, M.D.

Orthopaedic Surgery Physician in Las Vegas, NV · enumerated 2005.

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

National Provider Identifier

1962483024

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Mark Oliver Hansen
Credential M.D.
Sex Male
Practice address 2800 E Desert Inn Rd Ste 100, Las Vegas, NV, 89121
Fax (702) 734-4900
Enumeration date Nov 7, 2005
Last updated in NPPES Jul 6, 2022

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 22289 (NV) 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
22289 Other NV ORTHOPAEDIC SURGERY

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

What is the NPI number for Mark Hansen?
The National Provider Identifier (NPI) for Mark Hansen is 1962483024, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mark Hansen practice?
The practice location on file with NPPES is in Las Vegas, NV. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-06.