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

Michael Patrick O'Brien, MD

Individual provider Psychiatry Physician · NPI 1811070972

Michael Patrick O'Brien, MD is a Psychiatry Physician in Stonington, 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.

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Practice location Address checks out

32 Water St
Stonington, CT 06378
Phone: (860) 535-2028
Fax: (860) 535-9195
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 014409 (CT)

Record details

NPI number1811070972
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 23, 2006
Last updated in NPPESAugust 13, 2009
Mailing address32 Water Street, Stonington, CT 06378

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