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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.

SEZAI USTUN AYDIN
NPI 1023783271
Psychiatry & Neurology - Child & Adolescent Psychiatry in New Haven, CT

Active since August 10, 2021
425 GEORGE ST, NEW HAVEN, CT 06511(203) 688-3182 Get Directions Write a Review

NPPES record last updated: October 2, 2026. Verified against the NPPES registry weekly; last sync: October 11, 2026.

Record update history: Oct 2, 2026, May 15, 2026, Feb 6, 2026 and 2 more (5 updates tracked since 2021).

About Sezai Ustun Aydin NPPES

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

SEZAI USTUN AYDIN (NPI 1023783271) is an individual child & adolescent psychiatry provider in New Haven, Connecticut, licensed in Connecticut (1.083068) and active in the NPI registry since August 2021.

NPPES Registry Identity

NPI1023783271
Entity TypeIndividualMale
Primary Taxonomy2084P0804X
Provider Legal NameSEZAI USTUN AYDIN
Location Address425 GEORGE STNew Haven, CT 06511-5410
Mailing Address425 George StNew Haven, CT 06511-5410 · (203) 688-3182 · Fax (203) 688-3596
Phone(203) 688-3182
Sole ProprietorNo
Enumeration DateAugust 10, 2021
Last NPPES UpdateOctober 2, 20265 updates tracked since enumeration
NPPES CertifiedOctober 2, 2026
✔ NPI 1023783271 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · Child & Adolescent PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0804X
License✔ Licensed in CT · 1.083068
Definition
Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
425 GEORGE ST, New Haven, CT 06511
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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.

ALEC M SMIDT
Student in an Organized Health Care Education/Training Program
425 GEORGE ST
NEW HAVEN, CT 06511
South Central Connecticut Planning Region (630) 346-0969
MS. HEATHER E DOUGLAS-PALUMBERI M.A.
Student in an Organized Health Care Education/Training Program
425 GEORGE ST
NEW HAVEN, CT 06511
South Central Connecticut Planning Region (203) 537-1638
MR. GREGORY MACEWAN
Counselor (Mental Health)
425 GEORGE ST
NEW HAVEN, CT 06511
South Central Connecticut Planning Region (617) 877-7600
MS. CAROLYN MARIE GATTI LCSW
Social Worker (Clinical)
425 GEORGE ST
NEW HAVEN, CT 06511
South Central Connecticut Planning Region (203) 688-3182
BELINDA BREEN
Psychologist
425 GEORGE ST
NEW HAVEN, CT 06511
South Central Connecticut Planning Region (203) 688-3182
NADIKA PARANAMANA MA
Student in an Organized Health Care Education/Training Program
425 GEORGE ST, DBT OUTPATIENT PROGRAM
NEW HAVEN, CT 06511
South Central Connecticut Planning Region (203) 688-3182
LAUREN NICOLE FORREST
Student in an Organized Health Care Education/Training Program
425 GEORGE ST
NEW HAVEN, CT 06511
South Central Connecticut Planning Region (203) 688-3596
DR. TAMI PITCHER SULLIVAN PH.D.
Psychologist
425 GEORGE ST
NEW HAVEN, CT 06511
South Central Connecticut Planning Region (203) 688-3182

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 Sezai Ustun Aydin's NPI number?

The NPI number for Sezai Ustun Aydin is 1023783271. It was assigned to this individual provider in the NPPES registry on August 10, 2021.

Where is Sezai Ustun Aydin located?

Sezai Ustun Aydin practices at 425 George St, New Haven, CT 06511. The listed phone number is (203) 688-3182.

What is Sezai Ustun Aydin's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.

When was this NPI record last updated?

The NPPES record for Sezai Ustun Aydin was last updated on October 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.