DR. AMY SUSAN DUFFIELD M.D., PH.D.
NPI 1144370255
Pathology - Anatomic Pathology & Clinical Pathology in New York, NY
About Dr. Amy Susan Duffield M.d., Ph.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. AMY SUSAN DUFFIELD M.D., PH.D. (NPI 1144370255) is an individual anatomic pathology & clinical pathology provider in New York, New York, licensed in New York (302648) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS, is affiliated with Mount Sinai Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
Secondary Practice Locations 2
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Amy Susan Duffield M.d., Ph.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Areas of Expertise CMS Part B claims 12
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mount Sinai Hospital
Acute Care Hospitals · New York, NYMount Sinai Beth Israel
Acute Care Hospitals · New York, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10065 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW YORK, NY 10065
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Amy Duffield's NPI number?
The NPI number for Amy Duffield is 1144370255. It was assigned to this individual provider in the NPPES registry on January 11, 2007.
Where is Amy Duffield located?
Amy Duffield practices at 1275 York Ave, New York, NY 10065. The listed phone number is (212) 639-5900.
What is Amy Duffield's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.
Is Amy Duffield enrolled in Medicare?
Yes. Amy Duffield is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Is Amy Duffield affiliated with any hospitals?
According to CMS data, Amy Duffield is affiliated with Mount Sinai Hospital and Mount Sinai Beth Israel.
When was this NPI record last updated?
The NPPES record for Amy Duffield was last updated on June 18, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.
