Dr. Costner McKenzie

About Dr. Costner McKenzie

Dr. Costner McKenzie, MD

Board-Certified Dermatologist | Medical, Pediatric & Cosmetic Dermatology Specialist

Dr. Costner McKenzie is a board-certified dermatologist at the Skin Institute of New York (SINY®), providing comprehensive dermatologic care to adult and pediatric patients in Manhattan. With expertise in both medical and cosmetic dermatology, Dr. McKenzie combines academic excellence, research leadership, and compassionate patient care to deliver individualized, evidence-based treatment plans.

Schedule an Appointment with Dr. McKenzie

Education & Training

Dr. McKenzie’s academic and clinical training reflect a deep commitment to excellence:

• Bachelor’s Degree in Human Biology – Stanford University
• Doctor of Medicine (MD) – Northwestern University Feinberg School of Medicine
• Inducted into the prestigious Alpha Omega Alpha Honor Medical Society
• Dermatology Residency (Chief Resident) – New York University

At Northwestern, Dr. McKenzie’s academic performance and dedication to medicine earned him membership in Alpha Omega Alpha, recognizing exceptional academic achievement and professionalism. During residency at NYU, he refined his diagnostic, surgical, and cosmetic skills under nationally recognized leaders in dermatology and served as Chief Resident in his final year.

Clinical Expertise & Special Interests

Dr. McKenzie provides comprehensive dermatologic care with special focus on:

• Eczema and inflammatory skin disorders
• Acne and acne scarring
• Hair loss and scalp conditions
• Skin cancer screening and prevention
• Cosmetic dermatology and injectables
• Pediatric dermatology

His clinical and research interests also include health disparities in dermatology, reflecting his commitment to equitable and inclusive skin care for patients of all backgrounds

Dr. McKenzie is known for combining scientific rigor with a highly personalized approach, ensuring each patient feels heard, supported, and confident in their treatment plan.

Research, Publications & Academic Leadership

Dr. McKenzie is a well-published author with research featured in respected dermatology journals. He has presented his work at national and international meetings, contributing to advancements in the understanding and treatment of eczema, acne, hair loss, and dermatologic health disparities

He remains actively involved in medical education and is committed to mentoring and training future dermatologists.

• Active Member, American Academy of Dermatology
• Contributor to peer-reviewed dermatology literature
• National and international presenter

Patient Experience & Satisfaction

Patients consistently describe Dr. McKenzie as personable, knowledgeable, and exceptionally attentive. Many highlight his outstanding bedside manner, noting that they never feel rushed and always feel fully heard. He is frequently praised for clearly explaining diagnoses and treatment options, providing structured care plans, and ensuring patients leave feeling confident and informed.

Patients also commend the professionalism and friendliness of the SINY team, efficient scheduling, and welcoming office environment

Patient Experience & Satisfaction

Patients consistently describe Dr. McKenzie as personable, knowledgeable, and exceptionally attentive. Many highlight his outstanding bedside manner, noting that they never feel rushed and always feel fully heard. He is frequently praised for clearly explaining diagnoses and treatment options, providing structured care plans, and ensuring patients leave feeling confident and informed.

Patients also commend the professionalism and friendliness of the SINY team, efficient scheduling, and welcoming office environment.

Convenient Locations in New York

Dr. McKenzie sees patients at two SINY Dermatology locations in Manhattan, offering convenient access to expert dermatologic care.

Upper East Side

69 E 76th St, New York, NY 10021

Phone: 800-778-3090

Hours:

• Mon: 9:00 AM – 5:00 PM
• Tue-Thu: 9:00 AM – 8:00 PM
• ri: 8:00 AM – 4:00 PM
• Sat-Sun: Closed

Serving patients from: Upper East Side, Lenox Hill, Carnegie Hill, Yorkville, Midtown East, Roosevelt Island, Upper West Side, East Harlem, and surrounding Manhattan communities.

Schedule an Appointment at Upper East Side

Park Avenue

1000 Park Ave, New York, NY 10028

Phone:800-778-3090

Hours:

• on-Tue: 9:00 AM – 5:00 PM
• Wed: 12:00 PM – 8:00 PM
• Thu: 9:00 AM – 5:00 PM
• Fri: Closed
• Sat: 10:00 AM – 3:00 PM
• Sun: Closed

Serving patients from: Upper East Side, Carnegie Hill, Lenox Hill, Yorkville, Midtown East, Central Park East, and surrounding Manhattan neighborhoods.

Schedule an Appointment at Park Avenue

Accepted Insurance Plans

Dr. McKenzie accepts a wide range of major insurance plans, including:

• Aetna
• Anthem Blue Cross Blue Shield / Empire Blue Cross Blue Shield
• Blue Cross Blue Shield (including Federal Employee Program)
• Cigna & Cigna-HealthSpring
• UnitedHealthcare & Oxford
• EmblemHealth (GHI)
• Healthfirst (NY)
• Medicare
• Fidelis Care (NY)
• Humana
• Oscar Health
• MetroPlus Health Plan
• MagnaCare
• 1199SEIU

Additional plans accepted. Patients are encouraged to contact SINY Dermatology to confirm coverage prior to their visit.

About SINY Dermatology (Skin Institute of New York)

The Skin Institute of New York is a leading dermatology group providing medical, surgical, and cosmetic dermatology services across New York. SINY Dermatology physicians combine academic excellence, clinical research, and patient-focused care to deliver advanced skin treatments tailored to each individual.