DR. HOLLY DUFFY LMFT
NPI 1518230150
Marriage & Family Therapist in Santa Barbara, CA

Active since February 13, 2012PECOS Enrolled
4129 STATE ST, SANTA BARBARA, CA 93110(805) 964-4795 Get Directions Write a Review

NPPES record last updated: November 5, 2025. Verified against the NPPES registry weekly; last sync: September 27, 2026.

About Dr. Holly Duffy Lmft NPPES

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

DR. HOLLY DUFFY LMFT (NPI 1518230150) is an individual marriage & family therapist in Santa Barbara, California, licensed in California (111286) and active in the NPI registry since February 2012. She is enrolled in Medicare PECOS and is a graduate of Other (2013).

NPPES Registry Identity

NPI1518230150
Entity TypeIndividualFemale
Primary Taxonomy106H00000X
Provider Legal NameDR. HOLLY DUFFYCredential: LMFT
Location Address4129 STATE STSanta Barbara, CA 93110-1848
Mailing Address1323 Olive St Apt CSanta Barbara, CA 93101-1267 · (805) 285-4550
Sole ProprietorYes
Medical School CMSOtherGraduated 2013
Enumeration DateFebruary 13, 2012
Last NPPES UpdateNovember 5, 2025
NPPES CertifiedNovember 5, 2025
✔ NPI 1518230150 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers
Taxonomy Code106H00000X
License✔ Licensed in CA · 111286
Definition
A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.
Also ListedPsychologist · CounselingTaxonomy 103TC1900X
4129 STATE ST, Santa Barbara, CA 93110

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Holly Duffy Lmft is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2264924315
PECOS Enrollment IDI20251125003514
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

Counselor (Addiction (Substance Use Disorder))
4129 STATE ST
SANTA BARBARA, CA 93110
Counselor (Addiction (Substance Use Disorder))
4129 STATE ST
SANTA BARBARA, CA 93110
Counselor (Addiction (Substance Use Disorder))
4129 STATE ST
SANTA BARBARA, CA 93110
Counselor (Addiction (Substance Use Disorder))
4129 STATE ST
SANTA BARBARA, CA 93110
Counselor (Addiction (Substance Use Disorder))
4129 STATE ST
SANTA BARBARA, CA 93110
Counselor (Addiction (Substance Use Disorder))
4129 STATE ST
SANTA BARBARA, CA 93110
Counselor (Addiction (Substance Use Disorder))
4129 STATE ST
SANTA BARBARA, CA 93110
Counselor (Addiction (Substance Use Disorder))
4129 STATE ST
SANTA BARBARA, CA 93110

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 Holly Duffy's NPI number?

The NPI number for Holly Duffy is 1518230150. It was assigned to this individual provider in the NPPES registry on February 13, 2012.

Where is Holly Duffy located?

Holly Duffy practices at 4129 State St, Santa Barbara, CA 93110. The listed phone number is (805) 964-4795.

What is Holly Duffy's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

Is Holly Duffy enrolled in Medicare?

Yes. Holly Duffy is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Holly Duffy was last updated on November 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.