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

BARBARA J SLEIGHT MD
NPI 1811970395
Pediatrics - Pediatric Hematology-Oncology in New Haven, CT

Active since November 29, 2005
800 HOWARD AVE, YALE PHYSICIANS BUILDING, NEW HAVEN, CT 06519(203) 785-2140(203) 785-6414 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Barbara J Sleight Md NPPES

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

BARBARA J SLEIGHT MD (NPI 1811970395) is an individual pediatric hematology-oncology provider in New Haven, Connecticut, licensed in Connecticut (035690) and active in the NPI registry since November 2005.

NPPES Registry Identity

NPI1811970395
Entity TypeIndividualFemale
Primary Taxonomy2080P0207X
Provider Legal NameBARBARA J SLEIGHTCredential: MD
Location Address800 HOWARD AVE, YALE PHYSICIANS BUILDINGNew Haven, CT 06519-1369
Mailing Address300 George St, 6th Floor Po Box 9805New Haven, CT 06511-6624 · (203) 785-7998 · Fax (203) 785-6414
Fax(203) 785-6414
Sole ProprietorNo
Enumeration DateNovember 29, 2005
Last NPPES UpdateJuly 13, 2026
NPI 1811970395 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPediatrics · Pediatric Hematology-OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0207X
License Licensed in CT · 035690
Definition
A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases.
800 HOWARD AVE, New Haven, CT 06519

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.

Nurse Practitioner (Family)
800 HOWARD AVE
NEW HAVEN, CT 06519
Surgery
800 HOWARD AVE, YALE PHYSICIANS BLDG
NEW HAVEN, CT 06519
Nurse Practitioner
800 HOWARD AVE
NEW HAVEN, CT 06519
Internal Medicine (Medical Oncology)
800 HOWARD AVE, YALE PHYSICIANS BUILDING - 2ND FLOOR
NEW HAVEN, CT 06519
Clinical Nurse Specialist (Gerontology)
800 HOWARD AVE
NEW HAVEN, CT 06519
Physical Medicine & Rehabilitation
800 HOWARD AVE
NEW HAVEN, CT 06519
Psychologist (Clinical Child & Adolescent)
800 HOWARD AVE, YALE PHYSICIANS BLDG
NEW HAVEN, CT 06519
Psychiatry & Neurology (Neuromuscular Medicine)
800 HOWARD AVE
NEW HAVEN, CT 06519

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 Barbara Sleight's NPI number?

The NPI number for Barbara Sleight is 1811970395. It was assigned to this individual provider in the NPPES registry on November 29, 2005.

Where is Barbara Sleight located?

Barbara Sleight practices at 800 Howard Ave Yale Physicians Building, New Haven, CT 06519. The listed phone number is (203) 785-2140.

What is Barbara Sleight's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.

When was this NPI record last updated?

The NPPES record for Barbara Sleight was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 36 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.