STEPHANIE CASSANDRA YARNELL M.D., PH.D.
NPI 1265775084
Psychiatry & Neurology - Psychiatry in New Haven, CT

Active since March 29, 2013
20 YORK ST # T-209, YALE-NEW HAVEN HOSPITAL, NEW HAVEN, CT 06510(203) 688-2259(203) 688-5599 Get Directions Write a Review

NPPES record last updated: August 17, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Stephanie Cassandra Yarnell M.d., Ph.d. NPPES

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

STEPHANIE CASSANDRA YARNELL M.D., PH.D. (NPI 1265775084) is an individual psychiatry provider in New Haven, Connecticut, licensed in Connecticut (54297) and active in the NPI registry since March 2013.

NPPES Registry Identity

NPI1265775084
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameSTEPHANIE CASSANDRA YARNELLCredential: M.D., PH.D.
Location Address20 YORK ST # T-209, YALE-NEW HAVEN HOSPITALNew Haven, CT 06510-3220
Mailing Address20 York St # T-209, Yale-new Haven HospitalNew Haven, CT 06510-3220 · (203) 688-2259 · Fax (203) 688-5599
Fax(203) 688-5599
Sole ProprietorYes
Enumeration DateMarch 29, 2013
Last NPPES UpdateAugust 17, 2016
✔ NPI 1265775084 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CT · 54297
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
20 YORK ST # T-209, New Haven, CT 06510

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.

Psychiatry & Neurology (Child & Adolescent Psychiatry)
20 YORK ST # T-209, YALE-NEW HAVEN HOSPITAL
NEW HAVEN, CT 06510
Student in an Organized Health Care Education/Training Program
20 YORK ST # T-209, YALE-NEW HAVEN HOSPITAL
NEW HAVEN, CT 06510
Pathology (Anatomic Pathology & Clinical Pathology)
20 YORK ST # T-209, YALE-NEW HAVEN HOSPITAL
NEW HAVEN, CT 06510
Psychiatry & Neurology (Psychiatry)
20 YORK ST # T-209, YALE-NEW HAVEN HOSPITAL
NEW HAVEN, CT 06510
Psychiatry & Neurology (Psychiatry)
20 YORK ST # T-209, YALE-NEW HAVEN HOSPITAL
NEW HAVEN, CT 06510
Psychiatry & Neurology (Addiction Psychiatry)
20 YORK ST # T-209, YALE-NEW HAVEN HOSPITAL
NEW HAVEN, CT 06510
Student in an Organized Health Care Education/Training Program
20 YORK ST # T-209, YALE-NEW HAVEN HOSPITAL
NEW HAVEN, CT 06510
Internal Medicine (Gastroenterology)
20 YORK ST # T-209, YALE-NEW HAVEN HOSPITAL
NEW HAVEN, CT 06510

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 Stephanie Yarnell's NPI number?

The NPI number for Stephanie Yarnell is 1265775084. It was assigned to this individual provider in the NPPES registry on March 29, 2013.

Where is Stephanie Yarnell located?

Stephanie Yarnell practices at 20 York St # T-209 Yale-New Haven Hospital, New Haven, CT 06510. The listed phone number is (203) 688-2259.

What is Stephanie Yarnell's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

When was this NPI record last updated?

The NPPES record for Stephanie Yarnell was last updated on August 17, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.