Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Leo Russel Best, PA-C
Physician Assistant in Vista, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1376723437
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Registry record
Entity type Individual (Type 1)
Name Mr. Leo Russel Best
Credential PA-C
Sex Male
Practice address 145 Thunder Dr, Vista, CA, 92083
Phone (760) 630-5487
Enumeration date Nov 6, 2007
Last updated in NPPES Sep 18, 2015
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA15373 (CA) Primary
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 this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Leo Best?
Leo Best is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Simona Pop Family Medicine Physician · Vista, CA NPI 1275564874 David Zimmerman Family Medicine Physician · Vista, CA NPI 1255357307 Ethan Nguyen Internal Medicine Physician · Vista, CA NPI 1568475614 Amad Kadry Family Medicine Physician · Vista, CA NPI 1396855235 Paula Sorrentino Medical Physician Assistant · Vista, CA NPI 1053409920 Hugh Hodsman Family Medicine Physician · Vista, CA NPI 1851464275 Thomas Shima Obstetrics & Gynecology Physician · Vista, CA NPI 1619040169 Robert Barron Family Medicine Physician · Vista, CA NPI 1477626984
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-09-18.