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MICHAEL DUFFEY
NPI 1780519165
Assistant Behavior Analyst in Napa, CA

Active since June 16, 2026
3419 VALLE VERDE DR, NAPA, CA 94558(707) 299-8250(707) 635-8215 Get Directions Write a Review

NPPES record last updated: June 16, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Michael Duffey NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MICHAEL DUFFEY (NPI 1780519165) is an individual assistant behavior analyst provider in Napa, California and active in the NPI registry since June 2026.

NPPES Registry Identity

NPI1780519165
Entity TypeIndividualMale
Primary Taxonomy106E00000X
Provider Legal NameMICHAEL DUFFEY
Location Address3419 VALLE VERDE DRNapa, CA 94558-2414
Mailing Address3419 Valle Verde DrNapa, CA 94558-2414 · (707) 299-8250 · Fax (707) 635-8215
Phone(707) 299-8250
Fax(707) 635-8215
Sole ProprietorNo
Enumeration DateJune 16, 2026
NPPES CertifiedJune 16, 2026
✔ NPI 1780519165 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAssistant Behavior AnalystBehavioral Health & Social Service Providers
Taxonomy Code106E00000X
Definition
An assistant behavior analyst is qualified by Behavior Analyst Certification Board certification and/or a state-issued license or credential in behavior analysis to practice under the supervision of an appropriately credentialed professional behavior analyst. An assistant behavior analyst delivers services consistent with the dimensions of applied behavior analysis and supervision requirements defined in state laws or regulations and/or national certification standards. Common services may include, but are not limited to, conducting behavioral assessments, analyzing data, writing behavior-analytic treatment plans, training and supervising others in implementation of components of treatment plans, and direct implementation of treatment plans.
3419 VALLE VERDE DR, Napa, CA 94558
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MARVIN COLON
Behavior Technician
3419 VALLE VERDE DR
NAPA, CA 94558
Napa County (707) 867-8791
KRISTEN FUKUDA
Behavior Technician
3419 VALLE VERDE DR
NAPA, CA 94558
Napa County (707) 299-8250
MIRIAN GONZALEZ
Behavior Technician
3419 VALLE VERDE DR
NAPA, CA 94558
Napa County (707) 299-8250
DESTINY BARBOSA
Behavior Technician
3419 VALLE VERDE DR
NAPA, CA 94558
Napa County (707) 721-2060
ITZEL ASUNCION TORRES
Behavior Technician
3419 VALLE VERDE DR
NAPA, CA 94558
Napa County (707) 721-2060
CHARLENE BLOUNT
Behavior Technician
3419 VALLE VERDE DR
NAPA, CA 94558
Napa County (707) 299-8250
JERIEMAE SAMANIEGO
Behavior Technician
3419 VALLE VERDE DR
NAPA, CA 94558
Napa County (707) 299-8250
YELENA LEPEKHINA
Behavior Technician
3419 VALLE VERDE DR
NAPA, CA 94558
Napa County (707) 299-8250

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Michael Duffey's NPI number?

The NPI number for Michael Duffey is 1780519165. It was assigned to this individual provider in the NPPES registry on June 16, 2026.

Where is Michael Duffey located?

Michael Duffey practices at 3419 Valle Verde Dr, Napa, CA 94558. The listed phone number is (707) 299-8250.

What is Michael Duffey's specialty?

The primary specialty registered for this NPI is Assistant Behavior Analyst with taxonomy code 106E00000X.

When was this NPI record last updated?

The NPPES record for Michael Duffey was last updated on June 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 50 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.