Thomas P Mcmahon, MD - Medicare Gastroenterology in Portsmouth, RI

Thomas P Mcmahon, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Portsmouth, Rhode Island. He went to Georgetown University School Of Medicine and graduated in 1980 and has 44 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Lakewood Health System, Lakewood Health System and his current practice location is 110 Clock Tower Sq, Portsmouth, Rhode Island. You can reach out to his office (for appointments etc.) via phone at (401) 293-5600.

Thomas P Mcmahon is licensed to practice in Rhode Island (license number 6825) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1619048030.

Contact Information

Thomas P Mcmahon, MD
110 Clock Tower Sq,
Portsmouth, RI 02871-1396
(401) 293-5600
(401) 293-5604



Physician's Profile

Full NameThomas P Mcmahon
GenderMale
SpecialityGastroenterology
Experience44 Years
Location110 Clock Tower Sq, Portsmouth, Rhode Island
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Thomas P Mcmahon attended and graduated from Georgetown University School Of Medicine in 1980
  NPI Data:
  • NPI Number: 1619048030
  • Provider Enumeration Date: 11/10/2006
  • Last Update Date: 05/20/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 5092893214
  • Enrollment ID: I20240226003686

Medical Identifiers

Medical identifiers for Thomas P Mcmahon such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1619048030NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 6825 (Rhode Island)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Lakewood Health System105222967178
Lakewood Health System105222967178

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Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Thomas P Mcmahon allows following entities to bill medicare on his behalf.
Entity NameFoundation Medical Partners Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033162037
PECOS PAC ID: 9436140456
Enrollment ID: O20040519001048

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Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Thomas P Mcmahon is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Thomas P Mcmahon, MD
110 Clock Tower Sq,
Portsmouth, RI 02871-1396

Ph: (401) 293-5600
Thomas P Mcmahon, MD
110 Clock Tower Sq,
Portsmouth, RI 02871-1396

Ph: (401) 293-5600

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Internal Medicine Doctors in Portsmouth, RI

Joseph D. Pianka, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 110 Clock Tower Sq, Portsmouth, RI 02871
Phone: 401-293-5600    Fax: 401-293-5604
Dr. Kathleen Rae Zeller, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 2444 East Main Road, Portsmouth, RI 02871
Phone: 401-683-4817    Fax: 508-973-0318

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