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Mrs. Heather Autumn Duncan, IMF

Marriage & Family Therapist in Fairfield, CA · enumerated 2008 · practices at Mark Choi DDS Inc.

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

National Provider Identifier

1144498189

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Registry record

Entity type Individual (Type 1)
Name Mrs. Heather Autumn Duncan
Credential IMF
Sex Female
Practice address 2500 N Texas St, Suite A, Fairfield, CA, 94533
Phone (707) 428-4198
Fax (707) 423-2020
Enumeration date Feb 12, 2008
Last updated in NPPES Feb 2, 2009

Taxonomy & licenses

106H00000X Marriage & Family Therapist 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

Where does Heather Duncan practice?
The practice location on file with NPPES is in Fairfield, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Heather Duncan?
The National Provider Identifier (NPI) for Heather Duncan is 1144498189, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-02-02.