Individual provider · Type 1 NPI

Marcia Tonnesen, MD

Dermatology Physician · East Setauket, NY

NPI number 1205883238 Active

Practice location

181 N Belle Mead Rd
East Setauket, NY 11733-3495

Call (631) 444-4200 Map

Mailing address

PO Box 1559
Stony Brook, NY 11790-0989

Specialties and licenses

TaxonomyCodeLicense
Dermatology Physician Primary 207N00000X181378 (NY)

Dermatology Physician: A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis an…

34 other providers at this address

Other dermatology physician providers in East Setauket

See all in East Setauket →

About NPI 1205883238

Marcia Tonnesen, MD's National Provider Identifier is 1205883238, issued on May 27, 2006. The primary taxonomy on file is Dermatology Physician (207N00000X), and the practice location is in East Setauket, NY. The record was last updated on Jul 13, 2026.