Summary

N. Hennessey specializes in dermatology and brings over five decades of medical expertise to patient care. They completed their medical education at Michigan State University College of Human Medicine and went on to complete their residency training at Deaconess Hospital. With 51 years of experience treating skin conditions, N. Hennessey provides comprehensive dermatological care. They communicate with patients in English.

N. Hennessey practices at NYU Tisch Hospital and NYU Langone Orthopedic Hospital, with office locations in New York and Wainscott, New York. They focus on treating common skin concerns including seborrheic keratosis, skin changes during pregnancy, and moles. N. Hennessey performs various skin treatments such as lesion removal, cryotherapy for skin lesions, and laser therapy for skin conditions. Patients rate N. Hennessey 4.3 out of 5 stars on average.

AI-generated from data on this provider profile.

Quick Facts

  • accepting new patients
  • 4.3
  • 51 years of experience
  • speaks English
  • Deaconess Hospital
  • 26 written reviews
  • 1 specialty
  • 12 areas of expertise
  • 1 board certification
  • 2 hospital affiliations
  • 5 office locations

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. N. Hennessey has 5 locations

Hennessey Dermatology Llc

386 Montauk HwyWainscott, NY 11975
Mon9:00 am - 2:00 pm
TueClosed
WedClosed
Thu1:00 pm - 6:00 pm
Fri9:00 am - 6:00 pm
Sat9:00 am - 4:00 pm
SunClosed

Hennessey Dermatology

161 Madison AveNew York, NY 10016

Hennessey Dermatology

161 Madison Ave Rm 6seNew York, NY 10016
MonClosed
Tue9:00 am - 7:00 pm
Wed9:00 am - 7:00 pm
Thu9:00 am - 7:00 pm
FriClosed
SatClosed
SunClosed

Nyu Tisch Hospital

550 1st AveNew York, NY 10016

Hennessey Dermatology Llc

161 Madison Ave Rm 6seNew York, NY 10016
MonClosed
Tue9:00 am - 7:00 pm
Wed9:00 am - 7:00 pm
Thu9:00 am - 7:00 pm
FriClosed
Sat8:00 am - 5:00 pm
SunClosed

Compare with Similar Doctors

Dr. N. Hennessey
Dr. Brianna E Scotti
Dr. Marcy Goldstein, MD
Mark McKinley Ash, MD, MS, FAAD
Dr. N. HennesseyDr. Brianna E ScottiDr. Marcy Goldstein, MDMark McKinley Ash, MD, MS, FAAD
DermatologyDermatologyDermatologyDermatology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.3 
3.4 
51 Years of Experience 10 Years of Experience 32 Years of Experience 9 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks Spanish, English Speaks English Speaks English
Wainscott , NYCommack , NYParamus , NJClay , NY
Med School: Michigan State University College Of Human Medicine Med School: Stony Brook Medicine Med School: Albert Einstein College of Medicine Med School: The Brody School Of Medicine At East Carolina University
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by Dr. N. Hennessey

  • Accepts Medicare

Medical Specialties

Dr. N. Hennessey has the following specialty

Specialty Expertise

Dr. N. Hennessey has the following 12 areas of expertise

  • Acne (Acne Vulgaris)
  • Actinic Keratosis
  • Basal Cell
  • Excision
  • Melanoma
  • Mole
  • Psoriasis
  • Rash
  • Rosacea
  • Skin Biopsy
  • Skin Cancer
  • Warts

Certifications, License, & Education

51 Years Experience

MEDICAL LICENSE

Medical Doctor, New York, 2026, Active

EDUCATION & TRAINING

Residency

Deaconess Hospital

Medical School

Michigan State University College Of Human MedicineGraduated in 1975

Similar Doctors

Frequently Asked Questions

Is Dr. N. Hennessey accepting new patients?
Dr. N. Hennessey is accepting new patients on Vitals. View Dr. N. Hennessey's profile on Vitals to make an appointment.
Does Dr. N. Hennessey accept my insurance?
You can see the insurance plans that Dr. N. Hennessey accepts on their Vitals profile.
Which hospitals is Dr. N. Hennessey affiliated with?
Dr. N. Hennessey is affiliated with Nyu Tisch Hospital and Nyu Langone Orthopedic Hospital.
Where is Dr. N. Hennessey's office located?
Dr. N. Hennessey's office is located at 386 Montauk Hwy, Wainscott, NY, 11975.
Does Dr. N. Hennessey accept virtual/telehealth appointments?
Dr. N. Hennessey has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.