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

Mark Shannon, MD

Individual provider Internal Medicine Physician · NPI 1508941089

Mark Shannon, MD is an Internal Medicine Physician in Barrington, Rhode Island. Practices as a sole proprietor and works from 2 locations. Licensed in Rhode Island.

Licensed in
RI
In the registry since
2006
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

42 Lincoln Ave
Barrington, RI 02806-2136
Phone: (401) 246-0389
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2090 Wallum Lake Rd, Pascoag, RI 02859-1813 — (401) 567-5400

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD7250 (RI)

Record details

NPI number1508941089
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 25, 2006
Last updated in NPPESJune 12, 2026
Certification dateJune 12, 2026
Mailing address42 Lincoln Ave, Barrington, RI 02806-2136

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