Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Soren Mortensen, M.D.

Dermatology Physician in Reno, NV · enumerated 2012.

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

National Provider Identifier

1700156064

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Registry record

Entity type Individual (Type 1)

Name Dr. William Soren Mortensen

Credential M.D.

Sex Male

Practice address 500 Damonte Ranch Pkwy, Reno, NV, 89521

Phone (775) 829-1212

Fax (775) 829-1179

Enumeration date Jan 4, 2012

Last updated in NPPES Mar 4, 2026

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 15717 (NV) 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.

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Frequently asked questions

How do I verify William Mortensen's NPI record?

Cross-check NPI 1700156064 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1700156064 active?

Yes, as of the latest NPPES snapshot, NPI 1700156064 is active (record last updated 2026-03-04).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-04.