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Office Information
Office Hours Mon: 7:00am - 3:00pm
Tues: 8:30am - 7:00pm
Wed: 8:30am - 7:00pm
Thurs: 7:00am - 3:00pm
Fri: 8:30am - 5:00pm
Sat: 8:30am - 12:30pm
Sun: 8:30am - 12:30pm
Address 50 Glen Cove Rd.
Greenvale, NY 11548

Welcome to Walk-in Dermatology

Walk-in Dermatology combines the convenience of urgent care with the same services you expect at any dermatology office.

Are you in need of medical treatment? Considering a cosmetic procedure? No problem, we have you covered.

Welcoming Dermatologist
Dermascope

Board-Certified Dermatologists

Convenient Location - Greenvale, NY

Convenient Location

Same-Day Appointments - Just walk-in

Same-Day Appointments

We’re committed to keeping you healthy and giving you the confidence to look and feel your best. Walk-in Dermatology is improving the quality of patient care by providing timely treatment and using the latest technologies available.

Medical Dermatology

Medical Treatment

We offer expert evaluation and treatment for all medical dermatologic issues. If you’re concerned about anything related to your skin, hair or nails, we’re here for you.

Cosmetic Procedures

Cosmetic Procedures

Whether you’re looking for Botox, fillers, laser therapy or a skin care regimen, our board-certified dermatologists will help you look your best with the latest cosmetic procedures.

State-of-the-Art Technology

State-of-the-Art Technology

We use the most current technologies available in every aspect of what we do. You’ll notice the difference from the moment you walk into our modern office.

The Doctor is Ready to See You Now

Walk-in Dermatology Greenvale Main Entrance in rear

Conveniently located next to the LIRR
(Greenvale Station)

Visit our first Long Island location whenever it suits your schedule. Our facilities are designed to meet your needs, on your time.

Schedule online, on the phone, or by walking in today. Our friendly staff and board-certified dermatologists are ready to see you now.

Office Hours

Monday 7:00am - 3:00pm
Tuesday 8:30am - 7:00pm
Wednesday 8:30am - 7:00pm
Thursday 7:00am - 3:00pm
Friday 8:30am - 5:00pm
Saturday 8:30am - 12:30pm
Sunday 8:30am - 12:30pm
Dr. Stacey Brisman | Medical Director | Walk-in Dermatology

Stacey F. Brisman, MD, FAAD

Medical Director

Board-certified dermatologist and member of the American Academy of Dermatology, Women’s Dermatology Society and Skin Cancer Foundation. B.S., University of Michigan; Doctor of Medicine, Emory University School of Medicine; internship in Internal Medicine at Beth Israel Deaconess Medical Center; Dermatology residency at New York Presbyterian Hospital, Columbia University Medical Center. Published in Journal of the American Academy of Dermatology, Dermatologic Surgery and Pediatric Dermatology.

Dr. Louis Siegal

Louis Siegel, DO, FAAD

Board-certified dermatologist affiliated with St. John’s Episcopal Hospital-South Shore; medical degree from Touro College of Osteopathic Medicine; Dermatology residency at St. John’s Episcopal Hospital; diplomat of the American Board of Dermatology; Bachelor of Science from University of Maryland; specializing in comprehensive medical, surgical, and cosmetic dermatology including light-based therapies.

Dr. Kumar Sukhdeo

Kumar Sukhdeo, MD, PhD, FAAD

Member of the American Academy of Dermatology, American Hair Research Society, and Cicatricial Alopecia Research Foundation. B.S. from Duke University; Doctor of Medicine and Doctor of Philosophy from Case Western Reserve University; internship in Internal Medicine at the University of Chicago Hospital; dermatology residency at NYU Langone Health. Published in Journal of American Academy of Dermatology, Proceedings of the National Academy of Sciences, Cell, and Cancer Cell.

Florentina Haffey

Florentina Haffey

Licensed Aesthetician

Licensed Aesthetician since 2002; trained in San Dona di Piave, Italy and in the United States at Long Island Nail & Skin Care Institute and the Institute for Laser Medicine. Florentina served as a Licensed Aesthetician in Italy before moving to New York, where she has served as Head Aesthetician at several medical spas and wellness centers across Long Island.

The Doctor is Ready to See You Now

Walk-in Dermatology Greenvale Main Entrance in rear

Conveniently located next to the LIRR
(Greenvale Station)

Visit our first Long Island location whenever it suits your schedule. Our facilities are designed to meet your needs, on your time.

Schedule online, on the phone, or by walking in today. Our friendly staff and board-certified dermatologists are ready to see you now.

Office Hours

Monday 7:00am - 3:00pm
Tuesday 8:30am - 7:00pm
Wednesday 8:30am - 7:00pm
Thursday 7:00am - 3:00pm
Friday 8:30am - 5:00pm
Saturday 8:30am - 12:30pm
Sunday 8:30am - 12:30pm

Doctors

Dr. Stacey Brisman | Medical Director | Walk-in Dermatology

Stacey F. Brisman, MD, FAAD

Medical Director

Board-certified dermatologist and member of the American Academy of Dermatology, Women’s Dermatology Society and Skin Cancer Foundation. B.S., University of Michigan; Doctor of Medicine, Emory University School of Medicine; internship in Internal Medicine at Beth Israel Deaconess Medical Center; Dermatology residency at New York Presbyterian Hospital, Columbia University Medical Center. Published in Journal of the American Academy of Dermatology, Dermatologic Surgery and Pediatric Dermatology.

Dr. Louis Siegal

Louis Siegel, DO, FAAD

Board-certified dermatologist affiliated with St. John’s Episcopal Hospital-South Shore; medical degree from Touro College of Osteopathic Medicine; Dermatology residency at St. John’s Episcopal Hospital; diplomat of the American Board of Dermatology; Bachelor of Science from University of Maryland; specializing in comprehensive medical, surgical, and cosmetic dermatology including light-based therapies.

Dr. Kumar Sukhdeo

Kumar Sukhdeo, MD, PhD, FAAD

Member of the American Academy of Dermatology, American Hair Research Society, and Cicatricial Alopecia Research Foundation. B.S. from Duke University; Doctor of Medicine and Doctor of Philosophy from Case Western Reserve University; internship in Internal Medicine at the University of Chicago Hospital; dermatology residency at NYU Langone Health. Published in Journal of American Academy of Dermatology, Proceedings of the National Academy of Sciences, Cell, and Cancer Cell.

Aesthetician

Florentina Haffey

Florentina Haffey

Licensed Aesthetician

Licensed Aesthetician since 2002; trained in San Dona di Piave, Italy and in the United States at Long Island Nail & Skin Care Institute and the Institute for Laser Medicine. Florentina served as a Licensed Aesthetician in Italy before moving to New York, where she has served as Head Aesthetician at several medical spas and wellness centers across Long Island.

Insurance Plans Accepted

Certifications and Professional Memberships

Certifications and Professional Memberships

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Meet Florentina HaffeyWalk-in Dermatology welcomes licensed aesthetician Florentina Haffey to our Greenvale office.

Licensed Aesthetician since 2002; trained in San Dona di Piave, Italy and in the United States at Long Island Nail & Skin Care Institute and the Institute for Laser Medicine. Florentina served as a Licensed Aesthetician in Italy before moving to New York, where she has served as Head Aesthetician at several medical spas and wellness centers across Long Island.

Call our office at (516) 621-1982 to book your appointment with Florentina today.