Thomas Patrick O'brien, PA-C - Medicare Physician Assistant in Plymouth, MA

Thomas Patrick O'brien, PA-C is a medicare enrolled "Physician Assistant - Surgical" in Plymouth, Massachusetts. His current practice location is 23 White St, Plymouth, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (774) 991-1400.

Thomas Patrick O'brien is licensed to practice in Massachusetts (license number PA7872) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1225447626.

Contact Information

Thomas Patrick O'brien, PA-C
23 White St,
Plymouth, MA 02360-5960
(774) 991-1400
Not Available

Map and Direction




Provider's Profile

Full NameThomas Patrick O'brien
GenderMale
SpecialityPhysician Assistant - Surgical
Location23 White St, Plymouth, Massachusetts
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1225447626
  • Provider Enumeration Date: 08/11/2014
  • Last Update Date: 11/10/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 2264705847
  • Enrollment ID: I20170901000843

Medical Identifiers

Medical identifiers for Thomas Patrick O'brien such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1225447626NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363A00000XPhysician Assistant PA1851 (Nevada)Secondary
363AS0400XPhysician Assistant - Surgical PA7872 (Massachusetts)Primary
2255A2300XSpecialist/technologist - Athletic Trainer 2416 (Massachusetts)Secondary
2255A2300XSpecialist/technologist - Athletic Trainer AT00339 (Rhode Island)Secondary

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 Patrick O'brien allows following entities to bill medicare on his behalf.
Entity NameYee Advanced Orthopedics and Sports Medicine PC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1114029287
PECOS PAC ID: 8921042276
Enrollment ID: O20050616001018

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 Patrick O'brien 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 Patrick O'brien, PA-C
23 White St,
Plymouth, MA 02360-5960

Ph: (774) 991-1400
Thomas Patrick O'brien, PA-C
23 White St,
Plymouth, MA 02360-5960

Ph: (774) 991-1400

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.