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

Dr. Joseph Demay, MD

Individual provider Pediatric Adolescent Medicine Physician · NPI 1457459166

Dr. Joseph Demay, MD is a Pediatric Adolescent Medicine Physician in Williamsport, Pennsylvania. Practices as a sole proprietor. Licensed in Pennsylvania.

Licensed in
PA
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

338 Russell Ave
Williamsport, PA 17701-3826
Phone: (570) 326-5720
Fax: (570) 601-1522
Show map & directions

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

Specialties & licences

Pediatric Adolescent Medicine Physician (primary) Taxonomy 2080A0000X · Licence MD046306L (PA)

Record details

NPI number1457459166
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 20, 2006
Last updated in NPPESJuly 8, 2007
Mailing address258 Irion Dr, Montoursville, PA 17754-7921