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

William James Peterson, MD

Individual provider Emergency Medicine Physician · NPI 1841236072

William James Peterson, MD is an Emergency Medicine Physician in Vacaville, 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 Partly verified

Some contact details are missing from the federal record.

Vacavalley Hospital 1000 Nut Tree Rd
Vacaville, CA 95687
Phone: (707) 446-4000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence G56798 (CA)

Record details

NPI number1841236072
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 22, 2006
Last updated in NPPESJuly 8, 2007
Mailing address1528 Shannon Ct, Benicia, CA 94510-2737

Other providers in Vacaville