Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Ann M Callahan, MD

Individual provider Psychiatry Physician · NPI 1144343328

Ann M Callahan, MD is a Psychiatry Physician in Darien, Connecticut. Licensed in Connecticut. Registered with an NPI since 2007.

Licensed in
CT
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

10 Corbin Dr Ste 4
Darien, CT 06820-5403
Phone: (203) 655-0002
Fax: (203) 655-0023
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 039508 (CT)

Record details

NPI number1144343328
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 10, 2007
Last updated in NPPESFebruary 18, 2010
Mailing address10 Corbin Dr, Suite 4, Darien, CT 06820-5403

Other providers in Darien