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DR. ERIC JOHN DIEFFENBACH M.D.
NPI 1497082614
Psychiatry & Neurology - Psychiatry in New Canaan, CT

Active since November 09, 2009
72 PARK ST, NEW CANAAN, CT 06840(203) 858-1275 Get Directions Write a Review

NPPES record last updated: November 9, 2009. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Eric John Dieffenbach M.d. NPPES

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

DR. ERIC JOHN DIEFFENBACH M.D. (NPI 1497082614) is an individual psychiatry provider in New Canaan, Connecticut, licensed in Connecticut (032401) and active in the NPI registry since November 2009.

NPPES Registry Identity

NPI1497082614
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. ERIC JOHN DIEFFENBACHCredential: M.D.
Location Address72 PARK STNew Canaan, CT 06840-4532
Mailing Address72 Park StNew Canaan, CT 06840-4532 · (203) 858-1275
Phone(203) 858-1275
Sole ProprietorYes
Enumeration DateNovember 9, 2009
✔ NPI 1497082614 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CT · 032401
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.
72 PARK ST, New Canaan, CT 06840
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Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. RICHARD JOHN COOPER ND
Naturopath
72 PARK ST, SUITE 105
NEW CANAAN, CT 06840
Western Connecticut Planning Region (203) 972-6800
REQUA PSYCHOTHERAPY LLC
Marriage & Family Therapist
72 PARK ST, SUITE 103
NEW CANAAN, CT 06840
Western Connecticut Planning Region (203) 803-0469
MRS. NAOMI WILLIAMS
Speech-Language Pathologist
72 PARK ST
NEW CANAAN, CT 06840
Western Connecticut Planning Region (203) 273-7731
NEW CANAAN DENTAL ARTS PLLC
Dentist (General Practice)
72 PARK ST
NEW CANAAN, CT 06840
Western Connecticut Planning Region (203) 966-5313
R. CODER MATTHEWS INC.
Social Worker (Clinical)
72 PARK ST
NEW CANAAN, CT 06840
Western Connecticut Planning Region (203) 973-3327
DR. ASHLEY PACELLI
Dentist
72 PARK ST
NEW CANAAN, CT 06840
Western Connecticut Planning Region (203) 966-5313

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 Eric Dieffenbach's NPI number?

The NPI number for Eric Dieffenbach is 1497082614. It was assigned to this individual provider in the NPPES registry on November 9, 2009.

Where is Eric Dieffenbach located?

Eric Dieffenbach practices at 72 Park St, New Canaan, CT 06840. The listed phone number is (203) 858-1275.

What is Eric Dieffenbach'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 Eric Dieffenbach was last updated on November 9, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.