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Edit this profileAt a glance
- 55 Fogg Rd, South Weymouth, MA 02190
About Dr. Mahoney
Based in South Weymouth, MA, John L. Mahoney, MD is listed in the NPI registry under diagnostic radiology. John graduated from Georgetown University School of Medicine in 1985. Medicare claims data shows John provided 3,653 services to 3,547 patients. The services billed most often include x-ray of chest, 2 views, x-ray of chest, 1 view, and ct scan head or brain without contrast. NPI 1821076845 identifies this record in the national registry.
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
- (781) 337-7011
- Email not available
Practice Locations
55 FOGG RD
South Weymouth, MA 02190
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
3,653 services · 3,547 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| X-ray of chest, 2 views | Imaging | 71046 |
638 | More than most peers in Diagnostic Radiology |
| X-ray of chest, 1 view | Imaging | 71045 |
482 | More often than most peers in Diagnostic Radiology |
| Ct scan head or brain without contrast | Imaging | 70450 |
348 | More often than most peers in Diagnostic Radiology |
| Ct scan of upper spine without contrast | Imaging | 72125 |
316 | More than most peers in Diagnostic Radiology |
| Ct scan of abdomen and pelvis with contrast | Imaging | 74177 |
169 | More often than most peers in Diagnostic Radiology |
| Nuclear medicine studies of heart muscle at rest and with stress and spect | Imaging | 78452 |
138 | More often than most peers in Diagnostic Radiology |
| Ct scan of blood vessels of chest with contrast | Imaging | 71275 |
122 | More often than most peers in Diagnostic Radiology |
| Ct scan of blood vessels of neck with contrast | Imaging | 70498 |
118 | More often than most peers in Diagnostic Radiology |
| Ct scan of blood vessels of head with contrast | Imaging | 70496 |
106 | More often than most peers in Diagnostic Radiology |
| Complete ultrasound scan behind abdominal cavity | Imaging | 76770 |
103 | More often than most 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.
Other radiologists at this location 7
Same specialty, same street address — most likely the same department or group.
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.
More connections — 23 related providers in 3 groups
Trained at Georgetown University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1985 at Georgetown University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs X-ray of chest, 2 views 7
Providers in MA who bill this service to Medicare most often.
Common questions
What is Dr. Mahoney's specialty?
Dr. Mahoney is a radiologist in South Weymouth, MA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Diagnostic Radiology”.
NPI registry
Where can I find Dr. Mahoney?
Dr. Mahoney is listed at 55 Fogg Rd, South Weymouth, MA 02190. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Mahoney?
The number on file is (781) 337-7011. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Mahoney?
Dr. Mahoney's National Provider Identifier is 1821076845. 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
What is Dr. Mahoney's medical education?
Dr. Mahoney attended Georgetown University School of Medicine, graduating in 1985. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Mahoney have?
Dr. Mahoney has 41 years experience. Calculated from a graduation year of 1985, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Mahoney known for?
According to Medicare billing data, Dr. Mahoney performs imaging including x-ray of chest, 2 views and x-ray of chest, 1 view; provides treatments such as ultrasound study of one arm or leg veins with compression and maneuvers and ultrasound of both sides of head and neck blood flow. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Mahoney's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Mahoney. If this is you, claiming it is free.
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