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

Thomas P. McMahon, MD

Individual provider Gastroenterology Physician · NPI 1619048030

Thomas P. McMahon, MD is a Gastroenterology in Wareham, Massachusetts. Qualified in 1980, 46 years ago. Practices with Southcoast Physicians Group Inc, a 872-clinician group and accepts Medicare assignment. Licensed in Massachusetts and Rhode Island.

Years since qualifying
46
Licensed in
MA, RI
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.

See every abbreviation used in this directory →

Practice location Address checks out

100 Rosebrook Way
Wareham, MA 02571-1138
Phone: (508) 973-4974
Fax: (508) 273-4954
Show map & directions

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 50774 (MA)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 6825 (RI)

Record details

NPI number1619048030
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 10, 2006
Last updated in NPPESFebruary 2, 2026
Certification dateFebruary 2, 2026
Mailing address200 Mill Rd, Fairhaven, MA 02719-5252

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolOTHER
Graduated 1980 (46 years in practice)
Group practice Southcoast Physicians Group Inc — 872 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

Other providers in Wareham