Erin I Duffy, MD - Medicare Emergency Medicine in Stony Brook, NY

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Erin I Duffy, MD is a medicare enrolled "Emergency Medicine" physician in Stony Brook, New York. Her current practice location is 101 Nicolls Rd, Stony Brook, New York. You can reach out to her office (for appointments etc.) via phone at (631) 689-8333.

Erin I Duffy is licensed to practice in New York (license number 314438-01) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1497215669.

Contact Information

Erin I Duffy, MD
101 Nicolls Rd,
Stony Brook, NY 11794-2119
(631) 689-8333
Not Available

Map and Direction




Physician's Profile

Full NameErin I Duffy
GenderFemale
SpecialityEmergency Medicine
Location101 Nicolls Rd, Stony Brook, New York
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1497215669
  • Provider Enumeration Date: 03/22/2019
  • Last Update Date: 01/27/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 4082010020
  • Enrollment ID: I20220622001645

Medical Identifiers

Medical identifiers for Erin I Duffy such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1497215669NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 314438-01 (New York)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. Erin I Duffy allows following entities to bill medicare on her behalf.
Entity NameJohn T Mather Memorial Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1932296316
PECOS PAC ID: 1254237753
Enrollment ID: O20040316000754
Entity NameStony Brook Emergency Physicians, University Faculty Practice Corporat
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1265487672
PECOS PAC ID: 6507757648
Enrollment ID: O20040320000283
Entity NameNorth Shore - Lij Medical Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1053688572
PECOS PAC ID: 3375701568
Enrollment ID: O20120220000262

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. Erin I Duffy 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
Erin I Duffy, MD
101 Nicolls Rd,
Stony Brook, NY 11794-0001

Ph: () -		Erin I Duffy, MD
101 Nicolls Rd,
Stony Brook, NY 11794-2119

Ph: (631) 689-8333

Reviews and Comments


Emergency Medicine Doctors in Stony Brook, NY

Dr. Lauren Marie Maloney, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: Department Of Emergency Medicine, Hsc Level 4 Room 080, Stony Brook, NY 11794
Phone: 631-444-3880    
Dr. Christopher Carleo, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: University Hospital, L4, Stony Brook, NY 11794
Phone: 631-444-2499    
Dr. Dieu-huong Thi Ho, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: Stony Brook Medicine Department Of Emergency, Hsc Level 4 Room 080, Stony Brook, NY 11794
Phone: 631-444-3880    Fax: 631-444-3919
Dr. Simran Buttar, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 101 Nicolls Rd, Stony Brook, NY 11794
Phone: 631-444-2499    
Dr. Andrea Libutti, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: University Hospital, L4, Stony Brook, NY 11794
Phone: 631-444-2499    
Dr. Lawrence William Kelly Jr., MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: Stony Brook University Hospital, Department Of Emergency Medicine, Hsc, L-4, Room 080, Stony Brook, NY 11794
Phone: 631-444-3880    Fax: 631-444-6031
Dr. Frederick Schiavone, M.D.
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: University Hospital, L4, Stony Brook, NY 11794
Phone: 631-444-2499    

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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