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

Individual provider Diagnostic Radiology Physician · NPI 1821076845

John L Mahoney, MD is a Diagnostic Radiology in South Weymouth, Massachusetts. Graduated from Georgetown University School of Medicine in 1985, 41 years ago. Practices with South Shore Radiological Associates Inc, a 35-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
41
Trained at
Georgetown University School of Medicine
Licensed in
MA
In the registry since
2006
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

55 Fogg Rd
South Weymouth, MA 02190-2432
Phone: (781) 337-7011
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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 58715 (MA)

Record details

NPI number1821076845
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 9, 2006
Last updated in NPPESFebruary 13, 2026
Certification dateFebruary 13, 2026
Mailing addressPo Box 200694, Pittsburgh, PA 15251-0694

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 1985 (41 years in practice)
Group practice South Shore Radiological Associates Inc — 35 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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