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