Individual provider · Type 1 NPI

Ali Duffens, MD

Internal Medicine Physician · New York, NY

NPI number 1568049922 Active

Practice location

1275 York Ave
New York, NY 10065-6007

Call (646) 905-0332 Map

Mailing address

633 3rd Ave Fl 4
New York, NY 10017-6943

Specialties and licenses

TaxonomyCodeLicense
Internal Medicine Physician Primary 207R00000X336684 (NY)
Student in an Organized Health Care Education/Training Program 390200000XNone listed

Internal Medicine Physician: A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medi…

2,397 other providers at this address

Other internal medicine physician providers in New York

See all in New York →

About NPI 1568049922

Ali Duffens, MD's National Provider Identifier is 1568049922, issued on Mar 24, 2021. The primary taxonomy on file is Internal Medicine Physician (207R00000X), and the practice location is in New York, NY. The record was last updated on May 26, 2026.