Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mountainstar Intensivist Services LLC

Q: What is the NPI number for Mountainstar Intensivist Services LLC?

The NPI for Mountainstar Intensivist Services LLC is 1245517408, a Type 2 (organization) record in the CMS NPPES registry.

Critical Care Medicine (Internal Medicine) Physician in Orem, UT · enumerated 2011 · authorized official William Johnson, Vice President.

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

National Provider Identifier

1245517408

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Registry record

Entity type Organization (Type 2)

Legal business name Mountainstar Intensivist Services LLC

Practice address 750 W 800 N, Orem, UT, 84057

Phone (801) 714-6387

Fax (801) 714-6596

Enumeration date Nov 15, 2011

Last updated in NPPES Aug 29, 2023

Taxonomy & classification

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name William Johnson

Title Vice President

Phone (615) 372-3375

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 Mountainstar Intensivist Services LLC?

The NPI for Mountainstar Intensivist Services LLC is 1245517408, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Mountainstar Intensivist Services LLC?

NPPES lists William Johnson (Vice President) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-08-29.