John Sparrow Duffy, MD - Medicare Family Practice in Canton, NY

John Sparrow Duffy, MD is a medicare enrolled "Family Medicine" physician in Canton, New York. He graduated from medical school in 2000 and has 24 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Carthage Area Hospital Inc and his current practice location is 39 West Main Street, Canton, New York. You can reach out to his office (for appointments etc.) via phone at (315) 379-4700.

John Sparrow Duffy is licensed to practice in New York (license number 284577) 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 1295710358.

Contact Information

John Sparrow Duffy, MD
39 West Main Street,
Canton, NY 13617
(315) 379-4700
(315) 713-6512

Map and Direction




Physician's Profile

Full NameJohn Sparrow Duffy
GenderMale
SpecialityFamily Practice
Experience24 Years
Location39 West Main Street, Canton, New York
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:
  • John Sparrow Duffy graduated from medical school in 2000
  NPI Data:
  • NPI Number: 1295710358
  • Provider Enumeration Date: 12/13/2005
  • Last Update Date: 10/21/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 2163317405
  • Enrollment ID: I20160623001985

Medical Identifiers

Medical identifiers for John Sparrow Duffy such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1295710358NPI-NPPES
04392256MedicaidNY

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 284577 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Health Services Of Northern New York Inc ChhaPotsdam, NYHome health agency
Claxton-hepburn Medical CenterOgdensburg, NYHospital
Canton-potsdam HospitalPotsdam, NYHospital
Carthage Area Hospital, IncCarthage, NYHospital
Gouverneur HospitalGouverneur, NYHospital
Adirondack Medical CenterSaranac lake, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Carthage Area Hospital Inc993101048541

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. John Sparrow Duffy allows following entities to bill medicare on his behalf.
Entity NameClaxton-hepburn Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1891753034
PECOS PAC ID: 8426966508
Enrollment ID: O20031110000552

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. John Sparrow 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
John Sparrow Duffy, MD
39 West Main Street,
Canton, NY 13617

Ph: (315) 379-4700
John Sparrow Duffy, MD
39 West Main Street,
Canton, NY 13617

Ph: (315) 379-4700

Reviews and Comments


Family Medicine Doctors in Canton, NY

Katharine M Matthis, RPA-C
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 39 W Main St, Canton, NY 13617
Phone: 315-379-4700    Fax: 315-713-6512
Thushyanthan Pathmalingam,
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 80 E Main St, Canton, NY 13617
Phone: 315-261-5870    
Ms. Florence C Bero, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 80 E Main St, Suite 104, Canton, NY 13617
Phone: 315-386-8184    Fax: 315-386-2804
Mr. John Edward Dewar, M.D.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 80 E Main St, Ste 104, Canton, NY 13617
Phone: 315-386-8184    
Dr. Brian Richard Kerrigan, D.O.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 80 E Main St, Canton, NY 13617
Phone: 315-261-5870    
Thivisa Rajagopal, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 80 E Main St, Canton, NY 13617
Phone: 724-223-3100    

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.