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Edit this profileAt a glance
- 100 Fairfield Dr, Seneca, PA 16346
About Dr. Mason
William C. Mason, MD is a healthcare provider in Seneca, PA specializing in diagnostic radiology. William trained at Rush Medical College of Rush University, graduating in 1979. Medicare claims data shows William provided 862 services to 861 patients. The services billed most often include screening mammography, screening 3d breast mammography, and screening mammography. This provider record is associated with NPI 1083654917.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (814) 676-7130
- Email not available
Practice Locations
100 FAIRFIELD DR
Seneca, PA 16346
Conditions Evaluated or Diagnosed
Within Diagnostic Radiology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Abdomen & Pelvis
- Abdominal Pain
- Appendicitis
- Diverticulitis
- Enlarged prostate
- Gallstones
- Kidney stones
- Liver Lesions
- Ovarian cysts
Bone & Joint
- Ankle Sprain or Fracture
- Bone fractures
- Heel pain
- Hip osteoarthritis
- Osteoporosis
- Rotator cuff tear
- Torn meniscus
Brain & Head
- Brain aneurysm
- Brain tumor
- Concussion in Children
- Migraines
- Sinus infection
- Transient ischemic attack
Brain & nerves
Breast
Chest & Heart
General
Heart & blood vessels
Joint & bone
Liver & digestion
Lungs & breathing
Men's health
Neck & Thyroid
Nerve pain
Pelvic health
Spine
Spine & back
Vascular
Women's health
Procedures & services
Breast Imaging
Abdominal imaging
Biopsies
Bone Density
CT Scan
Digestive & liver
Fluoroscopy
General imaging
Heart & blood vessels
Joint & bone
MRI
Nuclear Medicine
Pelvic imaging
Screening & Prevention
Spine & back
Ultrasound
- Abdominal Ultrasound
- Carotid Ultrasound
- Leg Vein Ultrasound
- Pelvic ultrasound
- Scrotal Ultrasound
- Thyroid ultrasound
- Ultrasound
Urinary & kidney
Women's health
X-Ray
Procedures Most Often Billed to Medicare
862 services · 861 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Screening mammography | Imaging | 77067 |
215 | As often as other peers in Diagnostic Radiology |
| Screening 3d breast mammography | Imaging | 77063 |
215 | As often as other peers in Diagnostic Radiology |
| Screening mammography | Imaging | 77067 |
115 | As often as other peers in Diagnostic Radiology |
| Screening 3d breast mammography | Imaging | 77063 |
115 | As often as other peers in Diagnostic Radiology |
| Limited ultrasound scan of 1 breast | Imaging | 76642 |
45 | Less often than most peers in Diagnostic Radiology |
| Diagnostic mammography of both breasts | Imaging | 77066 |
43 | Less often than most peers in Diagnostic Radiology |
| Diagnostic mammography of 1 breast | Imaging | 77065 |
36 | Less often than most peers in Diagnostic Radiology |
| Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) | Billing code | G0279 |
78 | As often as other peers in Diagnostic Radiology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other radiologists in Seneca 7
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Rush Medical College of Rush University 8
Other providers in the same specialty who trained at the same institution.
Class of 1979 at Rush Medical College of Rush University 8
Providers who graduated from the same medical school in the same year.
Also performs Screening mammography 8
Providers in PA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Mason?
Dr. Mason is a radiologist in Seneca, PA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Diagnostic Radiology”.
NPI registry
What is Dr. Mason's address?
Dr. Mason is listed at 100 Fairfield Dr, Seneca, PA 16346. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Mason?
The number on file is (814) 676-7130. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Mason?
Dr. Mason's National Provider Identifier is 1083654917. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Mason train?
Dr. Mason attended Rush Medical College of Rush University, graduating in 1979. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Mason have?
Dr. Mason has 47 years experience. Calculated from a graduation year of 1979, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Mason perform?
According to Medicare billing data, Dr. Mason performs imaging including screening mammography and screening 3d breast mammography. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Mason's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Mason. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.