What is Thomas Mcmahon's specialty?

Thomas Mcmahon (NPI 1619048030) is a Medicare-billing provider whose primary specialty is Gastroenterology in Portsmouth, RI.

Where does Thomas Mcmahon practice?

Thomas Mcmahon practices in Portsmouth, RI, based on the location reported in the CMS Medicare provider datasets for NPI 1619048030.

How much does Medicare pay Thomas Mcmahon?

Thomas Mcmahon (NPI 1619048030) received approximately $15K in total Medicare Part B payments, serving 114 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1619048030

Thomas McmahonMD

PRACTICEJOSEPH D. PIANKA, MD, INC.See all providers at this practice →

GastroenterologyPortsmouth, RII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$7K

Peer benchmark

Total Medicare services vs. 61 Gastroenterology providers in RI — bottom quintile (cohort median 546).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Thomas Mcmahon's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 33 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
NEWPORT HOSPITAL	271	854
East Bay Endoscopy Center Llc Ambulatory Surgical Center · Portsmouth, RI	218	399
Saryn Stramecki Doucette Pathology · Madison, WI	96	225
Jason Vachon Diagnostic Radiology · Newport, RI	66	194
Scott Cameron Diagnostic Radiology · Boston, MA	59	104
THE MIRIAM HOSPITAL	53	144
SOUTHCOAST HOSPITALS GROUP, INC	37	93
Jeffrey Houston Diagnostic Radiology · Newport, RI	36	54
Robert Schwengel Cardiology · Middletown, RI	33	132
Joseph Pianka Gastroenterology · Portsmouth, RI	30	54
EARP, RALPH	30	88
Alessandro Papa Hematology-Oncology · Newport, RI	28	80

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events