Dr. N. Hennessey
- Gender: Male
- Experience: 46 years
- Graduated from: Michigan State University College Of Human Medicine
- Graduation year: 1975
- Sole propriator: Yes
- NPI: 1285694661
Dr. N. Hennessey M.D.
Dermatologist
He is located at 161 Madison Avenue Room 6Se in New York, NY 10016. Can help patients with the following: Dry Skin, Erythema Nodosum, Hyperhidrosis, Keloid, Ringworm, Skin Biopsy. His National Provider Identifier (NPI) number is 1285694661. Appointment can be made via the phone number (212) 677-5555. He also has a website where you can get more information. The website can be found at http://hennesseydermatology.com. He is affiliated with 2 practices and 1 hospitals.
Conditions treated
Dr. N. Hennessey, being an dermatologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. N. Hennessey.
- Acne
- Actinic Keratosis
- Albinism
- Alopecia Areata (AA)
- Athlete's Foot
- Birthmarks
- Blister
- Bug Bites
- Contact Dermatitis
- Dermabrasion
- Dry Skin
- Eczema
- Erythema Nodosum
- Folliculitis
- Hair Loss
- Heat Rash
- Henoch-Schonlein Purpura (HSP)
- Hives
- Hyperhidrosis
- Impetigo
- Ingrown Hair
- Intertrigo
- Jock Itch
- Keloid
- Keratosis Pilaris (KP)
- Lichen Planus
- MRSA Infection
- Melanoma
- Melasma
- Moles
- Molluscum Contagiosum
- Pityriasis Rosea
- Porphyria
- Psoriasis
- Ringworm
- Rosacea
- Scabies
- Scars
- Sebaceous Cyst
- Seborrhea
- Seborrheic Keratosis
- Shingles
- Skin Biopsy
- Skin Cancer
- Skin Itching
- Skin Tag
- Streptococcal Infections
- Stretch Marks
- Sunburn and Sun Poisoning
- Thrush
- Tinea Versicolor
- Varicose Veins
- Vitiligo
- Warts
- Wrinkles
Procedures Performed by Dr. N. Hennessey
Medicare Enrollment
Dr. N. Hennessey is enrolled to bill Medicare as a Practitioner - Dermatology .
Bills through: Hennessey Dermatology Llc
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Janssen | $1253 |
| Leo Pharma | $285 |
| Celgene | $159 |
Other
| Food and Beverage | $2171 |
Spoken languages
- Greek
- Romanian
- Spanish
Studies
MICHIGAN STATE UNIVERSITY COLLEGE OF HUMAN MEDICINE
Graduated in 1975Other ways to reach out
- Website: http://hennesseydermatology.com
Additional Specialities
- Specialist
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Questions & Answers
Where can you meet with Dr. N. Hennessey?
Dr. N. Hennessey's office is located at 161 Madison Avenue Room 6Se in New York, NY 10016.
What conditions does Dr. N. Hennessey treat?
Dr. N. Hennessey provides treatment for Dry Skin, Erythema Nodosum, Hyperhidrosis, Keloid, Ringworm, Skin Biopsy. For the full list see this list.
Does Dr. N. Hennessey have affiliation with practices?
Dr. N. Hennessey is affiliated with Hennessey Dermatology. For the full list of practices see this list.