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

Dr. Sean O'Reilly, MD

Individual provider Pulmonary Disease Physician · NPI 1871527879

Dr. Sean O'Reilly, MD is an Internal Medicine in South Weymouth, Massachusetts. Graduated from University of Massachusetts Medical School in 2020, 6 years ago. Practices with South Shore Medical Center, Inc, a 175-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Colorado, Massachusetts and Virginia.

Years since qualifying
6
Trained at
University of Massachusetts Medical School
Licensed in
CO, MA, VA
In the registry since
2006
Specialties on file
5
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

55 Fogg Rd
South Weymouth, MA 02190-2432
Phone: (781) 624-8000
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 280 Exempla Cir, Lafayette, CO 80026-3370 — (303) 338-4545
  • 500 Martha Jefferson Dr Fl 5, Charlottesville, VA 22911 — (434) 654-5260

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence 219985 (MA)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 0101257888 (VA)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 0101257888 (VA)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence DR.0061516 (CO)
Sleep Medicine (Internal Medicine) Physician Taxonomy 207RS0012X · Licence 0101257888 (VA)

Record details

NPI number1871527879
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 10, 2006
Last updated in NPPESSeptember 27, 2025
Certification dateSeptember 27, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Graduated 2020 (6 years in practice)
Group practice South Shore Medical Center, Inc. — 175 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in South Weymouth