Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

William E Lyon, PA

Individual provider Physician Assistant · NPI 1144346305

William E Lyon, PA is a Physician Assistant in San Diego, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

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Practice location Address checks out

4647 Zion Ave
San Diego, CA 92120-2507
Phone: (619) 528-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence PA10390 (CA)

Record details

NPI number1144346305
Entity typeIndividual (Type 1)
GenderMale
Credentials PA
Sole proprietorNo
NPI enumeratedMarch 21, 2007
Last updated in NPPESSeptember 23, 2008

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