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

John Keith Weixler, NP

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1699438820

John Keith Weixler, NP is a Psychiatric/Mental Health Nurse Practitioner in Fairfield, California. Licensed in California. Registered with an NPI since 2021.

Licensed in
CA
In the registry since
2021
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

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Practice location Address checks out

470 Chadbourne Rd Ste A
Fairfield, CA 94534-9620
Phone: (707) 419-8989
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence 95018841 (CA)

Record details

NPI number1699438820
Entity typeIndividual (Type 1)
GenderMale
Credentials NP
Sole proprietorNo
NPI enumeratedOctober 14, 2021
Last updated in NPPESSeptember 4, 2025
Certification dateSeptember 4, 2025
Mailing address1141 Pear Tree Ln, Napa, CA 94558-6484

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