Dr Jeffrey A Barnes, MD, PHD - Medicare Medical Oncology in Boston, MA

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Dr Jeffrey A Barnes, MD, PHD is a medicare enrolled "Internal Medicine - Hematology & Oncology" physician in Boston, Massachusetts. He went to University Of Illinois College Of Med (chi/peor/rock/chm-urb) and graduated in 2004 and has 20 years of diverse experience with area of expertise as Medical Oncology. He is a member of the group practice Newton-wellesley Medical Group, Inc., Massachusetts General Physicians Organization Inc, The General Hospital Corporation, Martha's Vineyard Hospital Inc and his current practice location is 55 Fruit St, Boston, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (617) 724-4000.

Dr Jeffrey A Barnes is licensed to practice in Massachusetts (license number 233635) 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 1326238411.

Contact Information

Dr Jeffrey A Barnes, MD, PHD
55 Fruit St,
Boston, MA 02114-2621
(617) 724-4000
Not Available

Map and Direction




Physician's Profile

Full NameDr Jeffrey A Barnes
GenderMale
SpecialityMedical Oncology
Experience20 Years
Location55 Fruit St, 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:
  • Dr Jeffrey A Barnes attended and graduated from University Of Illinois College Of Med (chi/peor/rock/chm-urb) in 2004
  NPI Data:
  • NPI Number: 1326238411
  • Provider Enumeration Date: 07/26/2007
  • Last Update Date: 10/04/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 4981738176
  • Enrollment ID: I20100810000140

Medical Identifiers

Medical identifiers for Dr Jeffrey A Barnes such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1326238411NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology 233635 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Massachusetts General HospitalBoston, MAHospital
Martha's Vineyard Hospital IncOak bluffs, MAHospital
Newton-wellesley HospitalNewton, MAHospital
Nantucket Cottage HospitalNantucket, MAHospital
Brigham And Women's HospitalBoston, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Newton-wellesley Medical Group, Inc.0244133494392
Massachusetts General Physicians Organization Inc24663658203084
The General Hospital Corporation65078038061058
Martha's Vineyard Hospital Inc993116611374

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. Dr Jeffrey A Barnes allows following entities to bill medicare on his behalf.
Entity NameMassachusetts General Physicians Organization Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801874573
PECOS PAC ID: 2466365820
Enrollment ID: O20031111000434
Entity NameNewton-wellesley Medical Group, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538191218
PECOS PAC ID: 0244133494
Enrollment ID: O20040127001012
Entity NameMartha's Vineyard Hospital Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1194866210
PECOS PAC ID: 9931166113
Enrollment ID: O20041220000589
Entity NameNantucket Cottage Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1447214622
PECOS PAC ID: 1759357601
Enrollment ID: O20050104000928
Entity NameThe General Hospital Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023049236
PECOS PAC ID: 6507803806
Enrollment ID: O20080313000351
Entity NameNantucket Physicians Organization
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1568798510
PECOS PAC ID: 6608065438
Enrollment ID: O20110111000016

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. Dr Jeffrey A Barnes 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
Dr Jeffrey A Barnes, MD, PHD
55 Fruit St,
Boston, MA 02114-2621

Ph: (617) 724-4000		Dr Jeffrey A Barnes, MD, PHD
55 Fruit St,
Boston, MA 02114-2621

Ph: (617) 724-4000

Reviews and Comments


Internal Medicine Doctors in Boston, MA

Kaitlyn My-tu Lam, MBBS
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114
Phone: 617-724-7738    
Kui Toh Gerard Leong, M.D.
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: 55 Fruit Street, Massachusetts General Hospital, Boston, MA 02114
Phone: 617-726-8862    
Ruma Rajbhandari,
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Practice Location: 75 Francis St, Boston, MA 02115
Phone: 617-525-6841    
Alaka Ray, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114
Phone: 617-726-2066    
Meghan E Sise, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114
Phone: 617-726-2862    
Aaron Dickstein, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 800 Washington St, Box 233, Boston, MA 02111
Phone: 617-636-5883    Fax: 617-636-9292
Dr. Felicia Elizabeth Patch, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 801 Massachusetts Ave, Crosstown 2, Boston, MA 02118
Phone: 617-414-4376    Fax: 617-414-4676

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).

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