Darren D Brennan, MD - Medicare Radiology in Marlborough, MA

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Darren D Brennan, MD is a medicare enrolled "Radiology - Diagnostic Radiology" physician in Marlborough, Massachusetts. His current practice location is 157 Union St, Marlborough, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (508) 486-5600.

Darren D Brennan is licensed to practice in Massachusetts (license number 228330) 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 1710904172.

Contact Information

Darren D Brennan, MD
157 Union St,
Marlborough, MA 01752-1228
(508) 486-5600
(508) 229-1241

Map and Direction




Physician's Profile

Full NameDarren D Brennan
GenderMale
SpecialityRadiology - Diagnostic Radiology
Location157 Union St, Marlborough, Massachusetts
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1710904172
  • Provider Enumeration Date: 07/15/2006
  • Last Update Date: 05/19/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 7517965601
  • Enrollment ID: I20061128000494

Medical Identifiers

Medical identifiers for Darren D Brennan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1710904172NPI-NPPES
110073995AMedicaidMA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2085R0202XRadiology - Diagnostic Radiology 228330 (Massachusetts)Primary

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. Darren D Brennan 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
Entity NameHarvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1275574899
PECOS PAC ID: 4486567104
Enrollment ID: O20040323000584
Entity NameUmass Memorial Radiology Phys Serv
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1639122096
PECOS PAC ID: 6800868779
Enrollment ID: O20040811000206

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. Darren D Brennan 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
Darren D Brennan, MD
Po Box 415348,
Boston, MA 02241-5348

Ph: (800) 225-8885		Darren D Brennan, MD
157 Union St,
Marlborough, MA 01752-1228

Ph: (508) 486-5600

Reviews and Comments


Radiology Doctors in Marlborough, MA

Jonathan R Arnow, MD
Radiology
Medicare: Accepting Medicare Assignments
Practice Location: 157 Union St, Radiology Department, Marlborough, MA 01752
Phone: 508-486-5605    Fax: 508-486-5506
Jonathan Michael Glanzman, MD
Radiology
Medicare: Accepting Medicare Assignments
Practice Location: 157 Union St, Marlborough, MA 01752
Phone: 508-486-6700    
Allison H Sacher, M.D.
Radiology
Medicare: Accepting Medicare Assignments
Practice Location: 157 Union St, Marlborough, MA 01752
Phone: 508-481-5000    
Mark W Sykes, MD
Radiology
Medicare: Not Enrolled in Medicare
Practice Location: 157 Union St, Radiology Department, Marlborough, MA 01752
Phone: 508-486-5605    Fax: 508-486-5506
Dr. Jacqueline L Wellman, M.D.
Radiology
Medicare: Medicare Enrolled
Practice Location: 157 Union St, Marlborough Hospital, Marlborough, MA 01752
Phone: 774-261-0177    
Brian T Brochu, M.D.
Radiology
Medicare: Accepting Medicare Assignments
Practice Location: 157 Union St, Marlborough, MA 01752
Phone: 508-486-5600    

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.