Individual provider · Type 1 NPI

John Dennis Allendorf, MD

Surgical Oncology Physician · Mineola, NY

NPI number 1740364397 Active

Practice location

120 Mineola Blvd, Suite 320
Mineola, NY 11501-4064

Call (516) 663-3300 Map

Fax (516) 663-2136

Specialties and licenses

TaxonomyCodeLicense
Surgery Physician 208600000X212487 (NY)
Surgical Oncology Physician Primary 2086X0206X212487 (NY)

Surgical Oncology Physician: A surgical oncologist is a well-qualified surgeon who has obtained additional training and experience in the multidisciplinary approach to the prevention, diagnosis, treatment, and rehabilitation of cancer patients, and devotes a major portion of his or her professional practice to these activities and cancer research.

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About NPI 1740364397

John Dennis Allendorf, MD's National Provider Identifier is 1740364397, issued on Oct 24, 2006. The primary taxonomy on file is Surgical Oncology Physician (2086X0206X), and the practice location is in Mineola, NY. The record was last updated on May 13, 2026.