NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Alliance Health Services LLC

Licensed Practical Nurse in Larkspur, CO · enumerated 2008 · authorized official Sirena Mcgrath, Vice President.

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

National Provider Identifier

1942479258

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Alliance Health Services LLC
Practice address 1117 Fremont Drive, Larkspur, CO, 80118
Enumeration date Feb 21, 2008
Last updated in NPPES Mar 17, 2008

Taxonomy & classification

164W00000X Licensed Practical Nurse Nursing Service Providers · License 44470 (CO) Primary
164X00000X Licensed Vocational Nurse Nursing Service Providers · License VN203060 (CA) Secondary

Authorized official

Name Sirena Mcgrath
Title Vice President

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 Alliance Health Services LLC?
The NPI for Alliance Health Services LLC is 1942479258, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Alliance Health Services LLC?
NPPES lists Sirena Mcgrath (Vice President) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-17.