Christopher Gerrior, - Medicare Physician Assistant in South Boston, MA

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Christopher Gerrior, is a medicare enrolled "Physician Assistant" in South Boston, Massachusetts. His current practice location is 590 E 5th St, South Boston, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (978) 806-5321.

Christopher Gerrior is licensed to practice in Massachusetts (license number PA9271) 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 1073268389.

Contact Information

Christopher Gerrior,
590 E 5th St,
South Boston, MA 02127-3140
(978) 806-5321
Not Available

Map and Direction




Provider's Profile

Full NameChristopher Gerrior
GenderMale
SpecialityPhysician Assistant
Location590 E 5th St, South Boston, Massachusetts
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1073268389
  • Provider Enumeration Date: 02/15/2022
  • Last Update Date: 08/05/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 3476919218
  • Enrollment ID: I20230519002148

Medical Identifiers

Medical identifiers for Christopher Gerrior such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1073268389NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363A00000XPhysician Assistant (* (Not Available))Secondary
363A00000XPhysician Assistant PA9271 (Massachusetts)Primary
390200000XStudent In An Organized Health Care Education/training Program (* (Not Available))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. Christopher Gerrior allows following entities to bill medicare on his behalf.
Entity NameInternal Medical Associates-ebnhc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1558481879
PECOS PAC ID: 6103814371
Enrollment ID: O20040505000853
Entity NameEmergency Physician Associates of Massachusetts PC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1730885252
PECOS PAC ID: 4981069580
Enrollment ID: O20230504001402

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. Christopher Gerrior 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
Christopher Gerrior,
111 H St,
South Boston, MA 02127-3020

Ph: (978) 806-5321		Christopher Gerrior,
590 E 5th St,
South Boston, MA 02127-3140

Ph: (978) 806-5321

Reviews and Comments


Physician Assistant Nurses in South Boston, MA

Rebecca Rejto,
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 777 E 4th St, South Boston, MA 02127
Phone: 978-844-3162    

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.