Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Michelle R Larsen, D.V.M.
Veterinarian in Phoenix, AZ · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1437581121
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Registry record
Entity type Individual (Type 1)
Name Dr. Michelle R Larsen
Credential D.V.M.
Sex Female
Practice address 14429 S 41st Pl, Phoenix, AZ, 85044
Phone (703) 281-0765
Enumeration date Aug 5, 2013
Last updated in NPPES Aug 5, 2013
Taxonomy & licenses
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.
Frequently asked questions
Is NPI 1437581121 active?
Yes, as of the latest NPPES snapshot, NPI 1437581121 is active (record last updated 2013-08-05).
How do I verify Michelle Larsen's NPI record?
Cross-check NPI 1437581121 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-08-05.