Accepting patients
Who is Dr. Tonnesen, Dermatologist in Stony Brook, NY?
Clinical practice anchored in treating non-Hodgkin lymphoma, with particular depth in skin light therapy and related techniques, is at the heart of Dr. Marcia Tonnesen MD's work as a Dermatologist in Stony Brook, NY. With a strong presence in the local community, she provides comprehensive care to patients across Long Island, including those in East Setauket. Specializing in the management of complex skin conditions, Dr. Tonnesen's expertise encompasses a range of diagnoses, including acne, eczema, benign skin growths, and seborrheic keratosis. Her use of skin light therapy addresses various skin concerns, from hyperpigmentation to overall skin health. This approach reflects her commitment to providing personalized care tailored to each patient's unique needs. Dr. Tonnesen's medical background is rooted in rigorous training, having completed her medical degree at the University of Utah School of Medicine and subsequent residencies at prestigious institutions such as Massachusetts General Hospital and Harvard Medical School Affiliated Hospitals. Her certification by the American Board of Dermatology further underscores her expertise. New patients can schedule a visit with Dr. Tonnesen, who accepts a range of insurance carriers, including major providers like CVS Health, Cigna Group, and UnitedHealth Group. Appointments are available at her Stony Brook office, making it convenient for local residents to access her care.
What are Areas of Expertise for Dr. Tonnesen?
Dr. Marcia Tonnesen, MD is a highly-rated, board-certified Dermatologist known for expertly diagnosing, treating, and managing a wide array of related conditions and procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Tonnesen empowers patients to confidently navigate their health journey, specializing in Geriatric Dermatology, and comprehensive wellness support. Serving the Stony Brook, NY community, Dr. Tonnesen is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Tonnesen go to medical school and complete their residency?
Fellowship: Research and Clinical Fellow, Harvard Medical School, MA
Residency: Mass Gen Hosp, Dermatology; Barnes-Jewish Hosp-S Campus, Internal Medicine | Massachusetts General Hospital | Harvard Medical School Affiliated Hospitals | Massachusetts General Hospital Program
Medical School: University of Ut Sch of Med, Salt Lake Cty Ut | University of Utah Sch of Medicine
Is Dr. Tonnesen board certified as a Dermatologist?
Yes, Dr. Marcia Tonnesen, MD is board certified by the American Board of Dermatology , American Board of Dermatology since 1980
What languages does Dr. Tonnesen speak?
Dr. Tonnesen and their clinical team can communicate with patients in the following languages:
English
What conditions does a Dermatologist like Dr. Tonnesen typically treat?
As a Dermatologist, Dr. Tonnesen diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Tonnesen. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Cutaneous T-cell Lymphoma
- Mycosis Fungoides
- Lymphoma
- Mycosis fungoides
- CTCL
- Skin T-cell lymphoma
- Cutaneous T-cell lymphoma
- Alibert-Bazin syndrome
ICD-10 Codes:
- C84A0: Cutaneous T-cell lymphoma, unspecified, unspecified site
- C8409: Mycosis fungoides, extranodal and solid organ sites
Also known as:
- Acne Vulgaris
- Acne
- Common acne
- Pimples
- Breakouts
ICD-10 Codes:
- L700: Acne vulgaris
Also known as:
- Skin Tumor of Uncertain Behavior
- Skin Condition
- Skin Neoplasm
- Skin Growth
- Uncertain Skin Lesion
ICD-10 Codes:
- D485: Neoplasm of uncertain behavior of skin
Also known as:
- Mole
- Birthmarks
- Moles
- Common Moles, Dysplastic Nevi, and Risk of Melanoma
- Nevus
- Birthmark
- Skin spot
ICD-10 Codes:
- D225: Melanocytic nevi of trunk
Also known as:
- Seborrheic Keratosis
- Benign Tumor
- Skin Condition
- SK
- Senile Wart
- Barnacle of Life
ICD-10 Codes:
- L821: Other seborrheic keratosis
Also known as:
- Other Eczema or Rash
- Eczema
- Rashes
- Atopic Dermatitis
- Uncommon dermatitis
- Atypical eczema
- Skin inflammation
ICD-10 Codes:
- L308: Other specified dermatitis
What procedures does a Dermatologist like Dr. Tonnesen typically perform?
As a Dermatologist, Dr. Tonnesen performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Tonnesen. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Goeckerman Treatment
- Photochemotherapy
- Tar and UV-B Therapy
- Petrolatum and UV-B Therapy
- Light Therapy for Skin
CPT Codes:
- 96910: Photochemotherapy; tar and ultraviolet B (Goeckerman treatment) or petrolatum and ultraviolet B
Does Dr. Tonnesen accept my insurance?
Dr. Tonnesen accepts most major insurance plans. Important: Please call our office at (631) 444-4200 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Tonnesen accept in Stony Brook, NY?
Dr. Tonnesen in Stony Brook, NY accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Centene Corporation
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
EmblemHealth
Healthfirst New York
Molina Healthcare
National Benefit Fund
Service Employees International Union (SEIU)
UnitedHealth Group
View All Insurances
Where is Dr. Tonnesen's office located?
Dr. Marcia Tonnesen's Primary Practice
1320 Stony Brook Rd Ste 200
Stony Brook, NY 11790
(631) 444-4200
What is Dr. Tonnesen's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Tonnesen's National Provider Identifier (NPI) number is 1205883238.
What common questions do patients ask about Dr. Tonnesen?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Tonnesen
What is Dr. Marcia Tonnesen's specialty?
Dr. Tonnesen is a Dermatologist near Stony Brook, NY.
What does a Dermatologist do?
Dermatologists are medical professionals trained to diagnose and treat a wide range of skin conditions in both children and adults, including skin cancers, melanomas, and other tumors. They also manage disorders of the mouth, external genitalia, hair, and nails, and are skilled in treating conditions like dermatitis, allergic reactions, and skin manifestations of systemic diseases. Dermatologists receive specialized training in dermatopathology and dermatologic surgical techniques, and address cosmetic issues such as hair loss and scarring. Additionally, they use laboratory methods to diagnose immune-related skin disorders, often collaborating with immunohematologists for expert consultation and targeted therapies.
Is this Dr. Marcia Tonnesen affiliated with a ranked Castle Connolly Top Hospital?
No, Tonnesen is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Northport VA Medical Center. Castle Connolly Top Hospitals are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
When to see a Dermatologist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Dermatologist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Marcia Tonnesen accepting new patients in Stony Brook, NY?
Yes, Dr. Marcia Tonnesen is accepting new patients at this time.
Does Dr. Marcia Tonnesen offer online booking?
Please contact Dr. Tonnesen's office at (631) 444-4200 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Marcia Tonnesen?
Please contact Dr. Tonnesen's office at (631) 444-4200 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Marcia Tonnesen have?
Dr. Marcia Tonnesen is certified by the American Board of Dermatology.
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