Dr Giles F Whalen, MD - Medicare Surgical Oncology in Worcester, MA

Dr Giles F Whalen, MD is a medicare enrolled "Surgery" physician in Worcester, Massachusetts. He went to Duke University School Of Medicine and graduated in 1980 and has 44 years of diverse experience with area of expertise as Surgical Oncology. He is a member of the group practice Umass Memorial Medical Group Inc and his current practice location is 119 Belmont St, Department Of Surgical Oncology, Worcester, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (508) 334-5202.

Dr Giles F Whalen is licensed to practice in Massachusetts (license number 57085) 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 1538141957.

Contact Information

Dr Giles F Whalen, MD
119 Belmont St, Department Of Surgical Oncology,
Worcester, MA 01605-2903
(508) 334-5202
(508) 334-5089

Map and Direction




Physician's Profile

Full NameDr Giles F Whalen
GenderMale
SpecialitySurgical Oncology
Experience44 Years
Location119 Belmont St, Worcester, 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 Giles F Whalen attended and graduated from Duke University School Of Medicine in 1980
  NPI Data:
  • NPI Number: 1538141957
  • Provider Enumeration Date: 11/20/2005
  • Last Update Date: 07/31/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 3072699685
  • Enrollment ID: I20080324000471

Medical Identifiers

Medical identifiers for Dr Giles F Whalen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1538141957NPI-NPPES
3113922MedicaidMA
110053383AMedicaidMA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208600000XSurgery 57085 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Umass Memorial Medical Center/university CampusWorcester, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Umass Memorial Medical Group Inc42845398911898

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 Giles F Whalen allows following entities to bill medicare on his behalf.
Entity NameUmass Memorial Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760445373
PECOS PAC ID: 4284539891
Enrollment ID: O20040113000267

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 Giles F Whalen 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 Giles F Whalen, MD
21 Winwood Rd,
Sutton, MA 01590-1831

Ph: () -
Dr Giles F Whalen, MD
119 Belmont St, Department Of Surgical Oncology,
Worcester, MA 01605-2903

Ph: (508) 334-5202

Reviews and Comments


Surgery Doctors in Worcester, MA

Elizabeth A Mahanor, MD
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Practice Location: 123 Summer St, Worcester, MA 01608
Phone: 508-368-3190    Fax: 508-368-3193
Dr. Craig A Paterson, M.D.
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Practice Location: 119 Belmont St, Department Of General Surgery, Worcester, MA 01605
Phone: 508-334-8195    
Dr. John M Castle, M.D.
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Phone: 508-334-5958    Fax: 508-334-5752
Frank Traupman, M.D.
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Practice Location: 281 Lincoln St, Medical Staff Svcs, Worcester, MA 01605
Phone: 508-334-8015    
Philip A Cohen, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 55 Lake Ave N, Department Of Surgery, Worcester, MA 01655
Phone: 508-856-7559    Fax: 508-856-4224
Mary Elise Huerter, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 55 Lake Ave N, Worcester, MA 01655
Phone: 508-334-3278    Fax: 508-334-7284
Jennifer Fantasia, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 33 Kendall St, Worcester, MA 01605
Phone: 083-348-7655    Fax: 508-334-9477

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.