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THOMAS P. MCMAHON, MD, INC.
NPI 1396816617
Internal Medicine - Gastroenterology in Portsmouth, RI

Active since November 10, 2006
110 CLOCK TOWER SQ, PORTSMOUTH, RI 02871(401) 293-5600(401) 293-5604 Get Directions Write a Review

NPPES record last updated: May 20, 2008. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Thomas P. Mcmahon, Md, Inc. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

THOMAS P. MCMAHON, MD, INC. (NPI 1396816617) is a healthcare organization registered as a gastroenterology in Portsmouth, Rhode Island and active in the NPI registry since November 2006. The organization lists Thomas P. Mcmahon, Owner, as its authorized official.

NPPES Registry Identity

NPI1396816617
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameTHOMAS P. MCMAHON, MD, INC.
Location Address110 CLOCK TOWER SQPortsmouth, RI 02871-1396
Mailing Address110 Clock Tower SqPortsmouth, RI 02871-1396 · (401) 293-5600 · Fax (401) 293-5604
Phone(401) 293-5600
Fax(401) 293-5604
Organization SubpartNo
Authorized OfficialThomas P. McmahonOwner · (401) 293-5600
Enumeration DateNovember 10, 2006
Last NPPES UpdateMay 20, 2008
✔ NPI 1396816617 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in RI · 6825
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
110 CLOCK TOWER SQ, Portsmouth, RI 02871
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Other Identifiers 1

Medicare PIN109006075RI

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JOSEPH D. PIANKA MD
Internal Medicine (Gastroenterology)
110 CLOCK TOWER SQ
PORTSMOUTH, RI 02871
Newport County (401) 293-5600
JOSEPH D. PIANKA, MD, INC.
Internal Medicine (Gastroenterology)
110 CLOCK TOWER SQ
PORTSMOUTH, RI 02871
Newport County (401) 293-5600

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Thomas P. Mcmahon, MD, Inc.'s NPI number?

The NPI number for Thomas P. Mcmahon, MD, Inc. is 1396816617. It was assigned to this organization in the NPPES registry on November 10, 2006.

Where is Thomas P. Mcmahon, MD, Inc. located?

Thomas P. Mcmahon, MD, Inc. is located at 110 Clock Tower Sq, Portsmouth, RI 02871. The listed phone number is (401) 293-5600.

What is Thomas P. Mcmahon, MD, Inc.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

When was this NPI record last updated?

The NPPES record for Thomas P. Mcmahon, MD, Inc. was last updated on May 20, 2008. NPI Profile syncs with the weekly NPPES data releases published by CMS.