Katherine Duffy, PA-C - Medicare Physician Assistant in New York, NY

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Katherine Duffy, PA-C is a medicare enrolled "Physician Assistant" physician in New York, New York. Her current practice location is 100 E 77th St, New York, New York. You can reach out to her office (for appointments etc.) via phone at (212) 434-2000.

Katherine Duffy is licensed to practice in New Jersey (license number 25MP00906000) 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 1598482689.

Contact Information

Katherine Duffy, PA-C
100 E 77th St,
New York, NY 10075-1850
(212) 434-2000
Not Available

Map and Direction




Physician's Profile

Full NameKatherine Duffy
GenderFemale
SpecialityPhysician Assistant
Location100 E 77th St, New York, New York
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1598482689
  • Provider Enumeration Date: 10/20/2022
  • Last Update Date: 01/09/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 0244779726
  • Enrollment ID: I20240828002506

Medical Identifiers

Medical identifiers for Katherine Duffy such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1598482689NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084V0102XPsychiatry & Neurology - Vascular Neurology 029188 (New York)Secondary
363A00000XPhysician Assistant 25MP00906000 (New Jersey)Primary

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. Katherine 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
Katherine Duffy, PA-C
720 Forest Ave,
Westfield, NJ 07090-4323

Ph: () -		Katherine Duffy, PA-C
100 E 77th St,
New York, NY 10075-1850

Ph: (212) 434-2000

Reviews and Comments



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.