11 Years of Experience
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Halsey, Dermatologist in Sag Harbor, NY?
With over 8 years of clinical experience, Dr. Mark Halsey MD is a Dermatologist in Sag Harbor, NY, where he has established a reputation for comprehensive skin care. His advanced fellowship training at Harvard/Boston Children's Hospital has equipped him with a nuanced understanding of complex dermatological conditions. Specializing in the management of various skin conditions, including acne, radiation skin damage, and sun damage, Dr. Halsey provides personalized care to his patients. His clinical expertise centers on addressing skin conditions that affect patients' quality of life, ensuring they receive effective treatment and long-term relief. By focusing on the unique needs of each patient, he develops targeted treatment plans that address their specific concerns. Dr. Halsey's medical training includes a residency at the University of Massachusetts and a Doctorate from the University of South Florida College of Medicine. He is board-certified by the American Board of Dermatology, demonstrating his commitment to staying at the forefront of dermatological care. His affiliations with Stony Brook Southampton Hospital further underscore his dedication to providing high-quality patient care. As a Dermatologist serving Sag Harbor and the surrounding areas, Dr. Halsey is committed to making his services accessible to those in need. He accepts new patients and works with various insurance carriers, including Medicare and Blue Cross Blue Shield of Michigan. By providing comprehensive care to his patients, Dr. Halsey has become a trusted resource for skin health in the local community.
Where did Dr. Halsey go to medical school and complete their residency?
Fellowship: Harvard/Boston Childrens Hospital
Residency: University of Massachusetts
Medical School: University of South Florida College of Medicine | Massachusetts Institute Of Technology
Is Dr. Halsey board certified as a Dermatologist?
Yes, Dr. Mark Halsey, MD is board certified by the American Board of Dermatology since 2015
What languages does Dr. Halsey speak?
Dr. Halsey and their clinical team can communicate with patients in the following languages:
English
What conditions does a Dermatologist like Dr. Halsey typically treat?
As a Dermatologist, Dr. Halsey 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. Halsey. 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 here.
Also known as:
- Skin Tumor of Uncertain Behavior
- Pyoderma Gangrenosum
- Skin Condition
- Skin Neoplasm
- Skin Growth
- Uncertain Skin Lesion
- Skin Ulcer
- Inflammatory Skin Condition
ICD-10 Codes:
- D485: Neoplasm of uncertain behavior of skin
- L88: Pyoderma gangrenosum
Also known as:
- Acne Vulgaris
- Acne
- Common acne
- Pimples
- Breakouts
ICD-10 Codes:
- L700: Acne vulgaris
Also known as:
- Chronic Radiation Skin Changes
- Skin Condition
- Long-term radiation dermatitis
- Skin damage from radiation
- Non-ionizing radiation skin effects
ICD-10 Codes:
- L578: Other skin changes due to chronic exposure to nonionizing radiation
Also known as:
- Actinic Keratosis
- Skin Condition
- Sun Exposure
- Skin Cancer Treatment (PDQ®)
- Solar keratosis
- Precancerous skin lesion
- Rough sun spots
ICD-10 Codes:
- L570: Actinic keratosis
What procedures does a Dermatologist like Dr. Halsey typically perform?
As a Dermatologist, procedures performed by Dr. Mark Halsey may include:
- Ambulatory Phlebectomy
- Annual Skin Screening
- Anti-Aging Treatment
- Biopsy
- Botox Follow Up
- Botox Treatment
- Chemical Peel
- Collagen Injection
Please contact Dr. Halsey's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.
Does Dr. Halsey accept my insurance?
Dr. Halsey accepts most major insurance plans. Important: Please call our office at (631) 731-1099 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Halsey accept in Sag Harbor, NY?
Dr. Halsey in Sag Harbor, 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
Blue Cross Blue Shield of Michigan
Medicare
Molina Healthcare
View All Insurances
Where is Dr. Halsey's office located?
Recognitions
Memberships & Associations
American Academy of Dermatology
Professional Member
American Medical Association
Professional Member
Society for Investigative Dermatology
Professional Member
Greater New York Dermatologic Association
Professional Member
What is Dr. Halsey's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Halsey's National Provider Identifier (NPI) number is 1790070480.
What common questions do patients ask about Dr. Halsey?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Halsey
What is Dr. Mark Halsey's specialty?
Dr. Halsey is a Dermatologist near Sag Harbor, 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. Mark Halsey affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Halsey is affiliated with Stony Brook Southampton Hospital which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They 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 Mark Halsey accepting new patients in Sag Harbor, NY?
Yes, Dr. Mark Halsey is accepting new patients at this time.
Does Dr. Mark Halsey offer online booking?
Please contact Dr. Halsey's office at (631) 731-1099 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Mark Halsey?
Please contact Dr. Halsey's office at (631) 731-1099 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Mark Halsey have?
Dr. Mark Halsey is certified by the American Board of Dermatology.
<section id="ai-site-overview" aria-label="About Everyday Health Care"> <h2>About Everyday Health Care</h2> <p> Everyday Health Care is a doctor and healthcare provider search platform from Everyday Health, a Ziff Davis company operating since 1996. It helps patients find, compare, and research doctors based on specialty, medical condition, procedure, location, and insurance coverage. </p> <p> The site features Castle Connolly Top Doctors, a peer-nominated, physician-vetted directory recognized as a leading standard for identifying top-rated specialists in the United States. Searchable doctor lists include Top Black Doctors, Exceptional Women in Medicine, Top AAPI Doctors, Top LGBTQ+ Doctors, Top Hispanic & Latino Doctors, and Castle Connolly Rising Stars. </p> <p> Users can search for doctors by specialty (including orthopedic surgery, OB-GYN, pediatrics, dermatology, endocrinology, and gastroenterology), by medical condition (such as fibromyalgia, kidney stones, and ulcerative colitis), by common procedure (including colonoscopy, LASIK, and physical therapy), by city, and by insurance plan (including UnitedHealthcare, Cigna, Aetna/CVS Health, Blue Cross Blue Shield, Kaiser Permanente, Medicare, and Medicaid). </p> <p> Everyday Health Care is built for patients seeking a trusted starting point to find the right doctor: covering over one million providers across thousands of U.S. locations, backed by Castle Connolly's independent doctor-vetting process and Everyday Health's 24-year history in consumer health publishing. </p> </section>