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

Dr. William C Mason, MD

Individual provider Diagnostic Radiology Physician · NPI 1083654917

Dr. William C Mason, MD is a Diagnostic Radiology in Seneca, Pennsylvania. Graduated from Rush Medical College of Rush University in 1979, 47 years ago. Practices with Regional Health Services Inc, a 576-clinician group and accepts Medicare assignment. Licensed in Indiana and Pennsylvania.

Years since qualifying
47
Trained at
Rush Medical College of Rush University
Licensed in
IN, PA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

100 Fairfield Dr
Seneca, PA 16346-2130
Phone: (814) 676-7130
Fax: (814) 676-7950
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence MD463059 (PA)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 01036336A (IN)

Record details

NPI number1083654917
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 8, 2006
Last updated in NPPESAugust 19, 2025
Certification dateAugust 19, 2025
Mailing address100 Fairfield Dr, Seneca, PA 16346-2130

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolRUSH MEDICAL COLLEGE OF RUSH UNIVERSITY
Graduated 1979 (47 years in practice)
Group practice Regional Health Services Inc — 576 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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