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.

Overview based on verified provider data

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

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Dr. N. Hennessey
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Dr. N. HennesseyDr. Anna Chacon, MDSarah Frierson, MMS, PA-C,Dr. Sejal K. Shah, MD
DermatologyDermatologyDermatologyDermatology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.3 
4.8 
51 Years of Experience 14 Years of Experience 21 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks English, Spanish, French Speaks English Speaks English
Wainscott , NYMiami , FLCHARLOTTE , NCNew York , NY
Med School: Michigan State University College Of Human Medicine Med School: Brown Medical School Med School: Icahn School Of Medicine At Mount Sinai
Current Profile
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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

Dr. N. Hennessey holds an active medical license in the state of New York.

Medical License

Medical Doctor with an active medical license in the state of New York that expires in 2026.

Education & Training

Residency

Completed their residency at Deaconess Hospital.

Medical School

Graduated from Michigan State University College Of Human Medicine in 1975.

NPI Number

Dr. Hennessey's NPI number is 1285694661.

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Frequently Asked Questions

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.
How can I make an appointment with Dr. N. Hennessey?
You can find contact information for Dr. N. Hennessey here on Vitals.
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.
Does Dr. N. Hennessey accept my insurance?
You can see the insurance plans that Dr. N. Hennessey accepts on their Vitals profile.

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