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

George Davis Gammon, MD

Individual provider Addiction Medicine (Psychiatry & Neurology) Physician · NPI 1053438267

George Davis Gammon, MD is an Addiction Medicine (Psychiatry & Neurology) Physician in Hamden, Connecticut. Practices as a sole proprietor. Licensed in Connecticut.

Licensed in
CT
In the registry since
2007
Specialties on file
4
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

33 Edgehill Ter
Hamden, CT 06517-4017
Phone: (203) 865-6540
Show map & directions

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

Specialties & licences

Addiction Medicine (Psychiatry & Neurology) Physician (primary) Taxonomy 2084A0401X · Licence 020807 (CT)
Psychiatry Physician Taxonomy 2084P0800X · Licence 020807 (CT)
Addiction Psychiatry Physician Taxonomy 2084P0802X · Licence 020807 (CT)
Child & Adolescent Psychiatry Physician Taxonomy 2084P0804X · Licence 020807 (CT)

Record details

NPI number1053438267
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 23, 2007
Last updated in NPPESSeptember 11, 2025
Mailing address33 Edgehill Ter, Hamden, CT 06517-4017