Dr. Marcia G. Tonnesen
- Gender: Female
- Experience: 48 years
- Graduated from: University Of Utah School Of Medicine
- Graduation year: 1973
- Sole propriator: No
- NPI: 1205883238
Dr. Marcia G. Tonnesen M.D.
Dermatologist
She is located at 181 North Belle Mead Road in East Setauket, NY 11733. Can help patients with the following: Birthmarks, Dermabrasion, Lichen Planus, Pityriasis Rosea, Skin Biopsy, Wrinkles. Her National Provider Identifier (NPI) number is 1205883238. Appointment can be made via the phone number (631) 444-4200. She also has a website where you can get more information. The website can be found at https://www.stonybrookmedicine.edu/profile?pid=202&name=Marcia%20Tonnesen%20MD. She is affiliated with 2 practices.
Conditions treated
Dr. Marcia Tonnesen, being an dermatologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Marcia G. Tonnesen.
- Acne
- Actinic Keratosis
- Albinism
- Alopecia Areata (AA)
- Athlete's Foot
- Birthmarks
- Blister
- Bug Bites
- Contact Dermatitis
- Dermabrasion
- Dry Skin
- Eczema
- Erythema Nodosum
- Folliculitis
- Hair Loss
- Heat Rash
- Henoch-Schonlein Purpura (HSP)
- Hives
- Hyperhidrosis
- Impetigo
- Ingrown Hair
- Intertrigo
- Jock Itch
- Keloid
- Keratosis Pilaris (KP)
- Lichen Planus
- MRSA Infection
- Melanoma
- Melasma
- Moles
- Molluscum Contagiosum
- Pityriasis Rosea
- Porphyria
- Psoriasis
- Ringworm
- Rosacea
- Scabies
- Scars
- Sebaceous Cyst
- Seborrhea
- Seborrheic Keratosis
- Shingles
- Skin Biopsy
- Skin Cancer
- Skin Itching
- Skin Tag
- Streptococcal Infections
- Stretch Marks
- Sunburn and Sun Poisoning
- Thrush
- Tinea Versicolor
- Varicose Veins
- Vitiligo
- Warts
- Wrinkles
Procedures Performed by Dr. Marcia G. Tonnesen
Medicare Enrollment
Dr. Marcia G. Tonnesen is enrolled to bill Medicare as a Practitioner - Dermatology .
Based on Medicare's public enrollment records as of Sep 29, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Studies
UNIVERSITY OF UTAH SCHOOL OF MEDICINE
Graduated in 1973Other ways to reach out
- Website: https://www.stonybrookmedicine.edu/profile?pid=202&name=Marcia%20Tonnesen%20MD
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Questions & Answers
Does Dr. Marcia Tonnesen have affiliation with practices?
Dr. Marcia Tonnesen is affiliated with Stony Brook Dermatology Associates University Faculty Practice Corpor. For the full list of practices see this list.
Where can you meet with Dr. Marcia Tonnesen?
Dr. Marcia Tonnesen's office is located at 181 North Belle Mead Road in East Setauket, NY 11733.
What conditions does Dr. Marcia Tonnesen treat?
Dr. Marcia Tonnesen provides treatment for Birthmarks, Dermabrasion, Lichen Planus, Pityriasis Rosea, Skin Biopsy, Wrinkles. For the full list see this list.