Gary M Lopes, MD - Medicare Gastroenterology in Boston, MA

Gary M Lopes, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Boston, Massachusetts. He went to Tufts University School Of Medicine and graduated in 1987 and has 37 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc and his current practice location is 133 Brookline Ave, Boston, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (617) 421-1091.

Gary M Lopes is licensed to practice in Massachusetts (license number 60604) 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 1285765149.

Contact Information

Gary M Lopes, MD
133 Brookline Ave,
Boston, MA 02215-3904
(617) 421-1091
(617) 421-2555

Map and Direction




Physician's Profile

Full NameGary M Lopes
GenderMale
SpecialityGastroenterology
Experience37 Years
Location133 Brookline Ave, Boston, Massachusetts
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:
  • Gary M Lopes attended and graduated from Tufts University School Of Medicine in 1987
  NPI Data:
  • NPI Number: 1285765149
  • Provider Enumeration Date: 03/09/2007
  • Last Update Date: 02/19/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 7911915541
  • Enrollment ID: I20060323000505

Medical Identifiers

Medical identifiers for Gary M Lopes such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1285765149NPI-NPPES
303613OtherMAHARVARD
060604OtherTUFTS
3048632MedicaidMA
32042OtherMAFALLON

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 60604 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Beth Israel Deaconess Medical CenterBoston, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc44865671041344

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. Gary M Lopes allows following entities to bill medicare on his behalf.
Entity NameHarvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1194765438
PECOS PAC ID: 4486567104
Enrollment ID: O20031204000918

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. Gary M Lopes 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
Gary M Lopes, MD
133 Brookline Ave,
Boston, MA 02215-3904

Ph: (617) 421-1091
Gary M Lopes, MD
133 Brookline Ave,
Boston, MA 02215-3904

Ph: (617) 421-1091

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.