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

Dr. John B. McDay, MD

Individual provider Radiation Oncology Physician · NPI 1700828662

Dr. John B. McDay, MD is a Radiation Oncology Physician in Villanova, Pennsylvania. Practices as a sole proprietor. Licensed in Pennsylvania, Virginia and Vermont.

Licensed in
PA, VA, VT
In the registry since
2006
Specialties on file
3
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

2058 Matsons Cir
Villanova, PA 19085-1814
Phone: (802) 343-2435
Fax: (610) 527-3164
Show map & directions

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

Specialties & licences

Therapeutic Radiology Physician (primary) Taxonomy 2085R0203X · Licence 042-0006520 (VT)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence MD019519E (PA)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence 0101245559 (VA)

Record details

NPI number1700828662
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 12, 2006
Last updated in NPPESMarch 24, 2017
Mailing address2058 Matsons Cir, Villanova, PA 19085-1814