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

William J Au, MD

Individual provider Neurology Physician · NPI 1457375321

William J Au, MD is a Neurology Physician in Sacramento, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2800 L St Ste 500
Sacramento, CA 95816-5616
Phone: (916) 454-6850
Fax: (916) 454-6852
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neurology Physician (primary) Taxonomy 2084N0400X · Licence G32757 (CA)

Record details

NPI number1457375321
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 26, 2006
Last updated in NPPESJuly 7, 2015
Mailing address10470 Old Placerville Rd, Suite 100, Sacramento, CA 95827-2539

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