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

Dr. William Allen Gillespie, MD

Individual provider Pediatrics Physician · NPI 1013343334

Dr. William Allen Gillespie, MD is a Pediatrics Physician in Durham, Connecticut. Practices as a sole proprietor. Licensed in Connecticut and New York.

Licensed in
CT, NY
In the registry since
2013
Specialties on file
2
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

256 Main St
Durham, CT 06422
Phone: (860) 349-9434
Show map & directions

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

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence 037591 (CT)
Pediatrics Physician Taxonomy 208000000X · Licence 7879548 (NY)

Record details

NPI number1013343334
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 18, 2013
Last updated in NPPESSeptember 18, 2013
Mailing address256 Main St, Durham, CT 06422