Grier H Merwin, MD - Medicare Family Practice in Dorchester, MA

Grier H Merwin, MD is a medicare enrolled "Family Medicine" physician in Dorchester, Massachusetts. He went to Columbia University College Of Physicians And Surgeons and graduated in 1967 and has 57 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Uphams Corner Health Committee Inc and his current practice location is 500 Columbia Road, Upham's Corner Health Ctr, Dorchester, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (617) 287-8000.

Grier H Merwin is licensed to practice in Massachusetts (license number 35314) 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 1255378204.

Contact Information

Grier H Merwin, MD
500 Columbia Road, Upham's Corner Health Ctr,
Dorchester, MA 02125
(617) 287-8000
Not Available

Map and Direction




Physician's Profile

Full NameGrier H Merwin
GenderMale
SpecialityFamily Practice
Experience57 Years
Location500 Columbia Road, Dorchester, 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:
  • Grier H Merwin attended and graduated from Columbia University College Of Physicians And Surgeons in 1967
  NPI Data:
  • NPI Number: 1255378204
  • Provider Enumeration Date: 05/31/2006
  • Last Update Date: 03/22/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 7113968405
  • Enrollment ID: I20050517000670

Medical Identifiers

Medical identifiers for Grier H Merwin such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1255378204NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 35314 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Boston Medical CenterBoston, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Uphams Corner Health Committee Inc428464508621

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. Grier H Merwin allows following entities to bill medicare on his behalf.
Entity NameUphams Corner Health Committee Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1780780486
PECOS PAC ID: 4284645086
Enrollment ID: O20060508000841

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. Grier H Merwin 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
Grier H Merwin, MD
415 Columbia Rd,
Dorchester, MA 02125-2424

Ph: (617) 287-8000
Grier H Merwin, MD
500 Columbia Road, Upham's Corner Health Ctr,
Dorchester, MA 02125

Ph: (617) 287-8000

Reviews and Comments


Family Medicine Doctors in Dorchester, MA

Dr. Geoffrey Alan Modest, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 500 Columbia Rd, Dorchester, MA 02125
Phone: 617-287-8000    Fax: 617-282-8625
Valerie Efonda Sanders, MD
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 250 Mount Vernon St, Dorchester, MA 02125
Phone: 617-288-1140    
Dr. Daniel Cagua-koo, MD
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 250 Mount Vernon St, Dorchester, MA 02125
Phone: 617-288-1140    
Dr. Chinh Van Le, M.D.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2100 Dorchester Avenue, Family Medicine, Dorchester, MA 02124
Phone: 617-506-4970    Fax: 617-825-2352
Dr. Elise Marie Henricks, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 415 Columbia Rd, Dorchester, MA 02125
Phone: 617-740-8075    Fax: 617-740-8060
Glennon John Ogrady,
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2100 Dorchester Avenue, Family Medicine, Dorchester, MA 02124
Phone: 617-506-4970    Fax: 978-686-4137
Sarah Christiane Phillips, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 415 Columbia Rd, Dorchester, MA 02125
Phone: 617-287-8000    

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.