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

Dr. Nancy Dian Olson, MD

Individual provider Psychiatry Physician · NPI 1003832049

Dr. Nancy Dian Olson, MD is a Psychiatry Physician in New Haven, Connecticut. Practices as a sole proprietor. Licensed in Connecticut.

Licensed in
CT
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

47 Trumbull St
New Haven, CT 06510-1004
Phone: (203) 785-1898
Fax: (203) 281-3707
Show map & directions

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

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 030070 (CT)

Record details

NPI number1003832049
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 14, 2006
Last updated in NPPESJuly 8, 2007

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