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Dianna Coffman

Addiction (Substance Use Disorder) Counselor in Vacaville, CA · enumerated 2013.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1639412570

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Registry record

Entity type Individual (Type 1)
Name Dianna Coffman
Sex Female
Practice address Vacaville, CA, 95688
Phone (707) 447-8982
Fax (707) 447-3205
Enumeration date Mar 28, 2013
Last updated in NPPES Mar 28, 2013

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Dianna Coffman?
The National Provider Identifier (NPI) for Dianna Coffman is 1639412570, a Type 1 (individual) record in the CMS NPPES registry.
Where does Dianna Coffman practice?
The practice location on file with NPPES is in Vacaville, CA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-03-28.