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Dr. Amy Susan Duffield, M.D., PH.D.

Anatomic Pathology & Clinical Pathology Physician in New York, NY · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1144370255

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Registry record

Entity type Individual (Type 1)
Name Dr. Amy Susan Duffield
Credential M.D., PH.D.
Sex Female
Practice address 1275 York Ave, New York, NY, 10065
Phone (212) 639-5900
Enumeration date Jan 11, 2007
Last updated in NPPES Jun 18, 2026

Taxonomy & licenses

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License 302648 (NY) Primary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License D70962 (MD) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
06174161 Medicaid NY -
432114600 Medicaid MD -

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does Amy Duffield practice?
The practice location on file with NPPES is in New York, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Amy Duffield?
The National Provider Identifier (NPI) for Amy Duffield is 1144370255, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-18.