Individual provider · Type 1 NPI

Nolan Williams

Psychiatry Physician · Napa, CA

NPI number 1811339641 Active

Practice location

1580 1st St
Napa, CA 94559-2841

Call (707) 258-8757 Map

Mailing address

PO Box 412
Green Mountain Falls, CO 80819-0412

Other practice locations

200 Hillmont Ave, Ventura, CA 93003-1647 · (805) 652-6729

Specialties and licenses

Taxonomy	Code	License
Psychiatry Physician Primary	2084P0800X	A159440 (CA)

Psychiatry Physician: A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic la…

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About NPI 1811339641

Nolan Williams's National Provider Identifier is 1811339641, issued on Jul 22, 2013. The primary taxonomy on file is Psychiatry Physician (2084P0800X), and the practice location is in Napa, CA. The record was last updated on Nov 17, 2025.