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