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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

SERGIO ALEXANDER DUARTE
NPI 1669192415
Counselor - Mental Health in San Francisco, CA

Active since August 31, 2022
139 HUGO ST APT 3, SAN FRANCISCO, CA 94122(310) 691-3644 Get Directions Write a Review

NPPES record last updated: October 20, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 12, 2026, Jul 1, 2025, Jun 6, 2025 and 1 more (4 updates tracked since 2022).

About Sergio Alexander Duarte NPPES

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

SERGIO ALEXANDER DUARTE (NPI 1669192415) is an individual mental health provider in San Francisco, California, licensed in California (APCC23728) and active in the NPI registry since August 2022.

NPPES Registry Identity

NPI1669192415
Entity TypeIndividualMale
Primary Taxonomy101YM0800X
Provider Legal NameSERGIO ALEXANDER DUARTE
Location Address139 HUGO ST APT 3San Francisco, CA 94122-2760
Mailing Address179 Caselli Ave Apt 1San Francisco, CA 94114-2351 · (925) 783-5022
Phone(310) 691-3644
Sole ProprietorNo
Enumeration DateAugust 31, 2022
Last NPPES UpdateOctober 20, 20264 updates tracked since enumeration
NPPES CertifiedOctober 20, 2026
✔ NPI 1669192415 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
License✔ Licensed in CA · APCC23728
Also ListedCounselor · Addiction (Substance Use Disorder)Taxonomy 101YA0400X
Also ListedCounselor · ProfessionalTaxonomy 101YP2500X · License APCC23728 (CA)
Also ListedAssistant Behavior AnalystTaxonomy 106E00000X
139 HUGO ST APT 3, San Francisco, CA 94122
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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.

EARLINDA L BROWN
Behavior Technician
139 HUGO ST APT 3
SAN FRANCISCO, CA 94122
San Francisco County (310) 691-3644
MONICA RAMOS ESTRADA RBT
Behavior Technician
139 HUGO ST APT 3
SAN FRANCISCO, CA 94122
San Francisco County (650) 797-2327
BRIANT HERNANDEZ
Behavior Technician
139 HUGO ST APT 3
SAN FRANCISCO, CA 94122
San Francisco County (650) 797-2327
LAUREN MAE IVANKOVICH
Behavior Technician
139 HUGO ST APT 3
SAN FRANCISCO, CA 94122
San Francisco County (650) 797-2327
KIERNAN RILEY MANU
Behavior Technician
139 HUGO ST APT 3
SAN FRANCISCO, CA 94122
San Francisco County (650) 797-2327
JESSICA CECILIA PAVON
Behavior Technician
139 HUGO ST APT 3
SAN FRANCISCO, CA 94122
San Francisco County (650) 797-2378
SALLY CHAN
Behavior Technician
139 HUGO ST APT 3
SAN FRANCISCO, CA 94122
San Francisco County (310) 691-3644
LIZBETH PINON-SOSA
Behavior Technician
139 HUGO ST APT 3
SAN FRANCISCO, CA 94122
San Francisco County (000) 000-0000

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 Sergio Duarte's NPI number?

The NPI number for Sergio Duarte is 1669192415. It was assigned to this individual provider in the NPPES registry on August 31, 2022.

Where is Sergio Duarte located?

Sergio Duarte practices at 139 Hugo St Apt 3, San Francisco, CA 94122. The listed phone number is (310) 691-3644.

What is Sergio Duarte's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for Sergio Duarte was last updated on October 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.