Dr Keenan Mahan, MD, MBA - Medicare Emergency Medicine in Newton, MA

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Dr Keenan Mahan, MD, MBA is a medicare enrolled "Emergency Medicine" physician in Newton, Massachusetts. His current practice location is 2014 Washington St, Newton, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (617) 243-6193.

Dr Keenan Mahan is licensed to practice in Massachusetts (license number 290245) 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 1104387158.

Contact Information

Dr Keenan Mahan, MD, MBA
2014 Washington St,
Newton, MA 02462-1607
(617) 243-6193
Not Available

Map and Direction




Physician's Profile

Full NameDr Keenan Mahan
GenderMale
SpecialityEmergency Medicine
Location2014 Washington St, Newton, Massachusetts
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1104387158
  • Provider Enumeration Date: 03/30/2019
  • Last Update Date: 11/04/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 2062742059
  • Enrollment ID: I20230531001998

Medical Identifiers

Medical identifiers for Dr Keenan Mahan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1104387158NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 290245 (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. Dr Keenan Mahan allows following entities to bill medicare on his behalf.
Entity NameNewton Wellesley Emergency Medicine Specialist Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1346355526
PECOS PAC ID: 7810983996
Enrollment ID: O20040423000237
Entity NameMass General Brigham Medical Group Northern Massachusetts Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1588606123
PECOS PAC ID: 3577467224
Enrollment ID: O20050429000668
Entity NameMass General Brigham Medical Group, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1083360200
PECOS PAC ID: 3971987108
Enrollment ID: O20230925000368

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 Keenan Mahan 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 Keenan Mahan, MD, MBA
2014 Washington St,
Newton, MA 02462-1607

Ph: () -		Dr Keenan Mahan, MD, MBA
2014 Washington St,
Newton, MA 02462-1607

Ph: (617) 243-6193

Reviews and Comments


Emergency Medicine Doctors in Newton, MA

Dr. Jill Zimmer Simon, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 2014 Washington St, Newton, MA 02462
Phone: 617-243-6040    Fax: 617-243-6924
Mary Christine Bailey, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2014 Washington Street, Newton, MA 02462
Phone: 617-243-6040    Fax: 617-243-6924
David Hark, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2014 Washington St, Newton, MA 02462
Phone: 617-243-6192    
Mark Robert Zonfrillo, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 2014 Washington St, Newton, MA 02462
Phone: 617-243-6000    
Andrew Woods Ames, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2014 Washington St, Newton, MA 02462
Phone: 617-243-6040    Fax: 617-243-6924
Lynanne Ballelli Morganstern, M.D.
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: Mckesson Corporation, 275 Grove Street, Suite 1 - 110, Newton, MA 02466
Phone: 617-273-2966    

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.