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

Dr. William Porter Welbourne, MD

Individual provider Internal Medicine Physician · NPI 1053309633

Dr. William Porter Welbourne, MD is an Internal Medicine Physician in Geneva, New York. Licensed in New York. Registered with an NPI since 2005.

Licensed in
NY
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

200 N St Ste 102
Geneva, NY 14456-1561
Phone: (315) 787-5400
Fax: (315) 787-5475
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 119889 (NY)

Record details

NPI number1053309633
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 8, 2005
Last updated in NPPESSeptember 26, 2014

Other providers in Geneva