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Dr. John S Walczyk, MD

Dr. John S Walczyk, MD

Dermatologist
825 Northern Blvd, Ste 300, Great Neck, NY
4.95
“Highly Professional and Comprehensive Care: I had my first visit with this dermatologist today for a full skin cancer screening and to address a few other concerns. He was incredibly thorough, made me feel completely comfortable, and took the time to explain everything clearly. Highly recommend for anyone looking for a knowledgeable and attentive doctor.”
Ralph C.March 12, 2026
Highly recommended
95% of patients gave this doctor 5 stars
Excellent wait time
96% of patients waited less than 30 minutes
New patient appointments
Appointments available for new patients

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About Dr. John S Walczyk

Dr. Walczyk is a board-certified dermatologist at Schweiger Dermatology Group. He has decades of experience treating patients of all ages with a personalized and educational approach to dermatologic care. Known for his family-oriented style and emphasis on doctor–patient connection, Dr. Walczyk helps patients understand their skin conditions while providing expert diagnosis and treatment. He often relates to patients through shared life experiences and is proud to be regarded as their family dermatologist. Dr. Walczyk graduated summa cum laude from the University of Vermont with a Bachelor of Science in 1985. He then conducted research before earning his medical degree from the College of Physicians and Surgeons of Columbia University. He completed his internal medicine internship at North Shore University Hospital in Manhasset, NY, followed by a dermatology residency at Columbia-Presbyterian Medical Center, where he served as chief resident in the St. Luke’s Division during his final year. He was board certified by the American Board of Dermatology in 1994 and maintains certification through recertification. Dr. Walczyk has long been active in medical education and has held academic appointments at the College of Physicians and Surgeons of Columbia University, first as an instructor in clinical dermatology and currently as an associate in clinical dermatology, where he teaches dermatology residents. Throughout his career, he has been affiliated with Columbia-Presbyterian Medical Center, North Shore University Hospital, Plainview, and previously with Winthrop University Hospital. He established his own practice, Manhasset Dermatology, in 2001.

In-network insurances

99% of patients have successfully booked with these insurances
Aetna
BlueCross BlueShield
Cigna
Emblem Health
Medicare
UnitedHealthcare
UnitedHealthcare Oxford

Areas of expertise

This doctor's experience enhances their expertise in similar cases. Below are the conditions or surgeries they treat most frequently.
Acute skin infection
Benign or precancerous skin growths
Acute skin infection
Benign or precancerous skin growths

Practice

Schweiger Dermatology Group

Schweiger Dermatology, founded by Eric S. Schweiger, M.D., a Board Certified Manhattan dermatologist, is a state of the art dermatology facility that uses cutting edge medical technology and procedures to effectively treat a multitude of skin disorders. Common skin problems treated include acne, eczema, hair loss, psoriasis, rosacea, skin cancer and warts.
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Office location

Schweiger Dermatology Group - Great Neck
825 Northern Blvd, Ste 300, Great Neck, NY 11021
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Education and background

Hospital affiliations

  • NewYork-Presbyterian / Columbia University Irving Medical Center
  • North Shore University Hospital
  • Plainview Hospital

Board certifications

  • American Board of Dermatology

Education and training

  • Medical School - Columbia University Vagelos College of Physicians and Surgeons, Doctor of Medicine
  • University of Vermont (Bachelor's)
  • North Shore University Hospital, Internship in Internal Medicine
  • NewYork-Presbyterian / Columbia University Irving Medical Center, Residency in Dermatology

Professional memberships

  • American Academy of Dermatology
  • Medical Society of the State of New York

Awards and publications

  • Castle Connolly Top Doctor
  • National Board of Medical Examiners

Languages spoken

  • English

Provider's gender

Male

NPI number

1043233166

Patient reviews

Overall rating
4.95
Wait time
4.71
Bedside manner
4.98
Your trust matters. All reviews have been submitted by verified patients after seeing the provider. Any content containing private health information is not published.
59 reviews
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Dt Walczyk called me to notify me that a biopsy came back and needed further treatment. I was able to see him the same day.
Verified patient
I found Dr Walcyvk very pleasant and knowledgeable! He told me exactly what the problem was and treated it accordingly.
Verified patient
Very thorough exam. Have been going to dr walcyzk for years. More than satisfied with his care.
Verified patient
I’m so glad I was recommended to him a few years ago. He is the best dermatologist around and I have been to a few.
Dr. John Walczyk was professional and courteous. The staff were also friendly.
Verified patient
Dr was very attentive. He listened to my problem which I appreciated
Verified patient
Dr W was very knowledgeable and had a plan to treat my condition. Great bedside manner
Verified patient
Exactly what you’d hope for as far as knowledge and professionalism
Verified patient
more friendly and smiles effort by the front desk - will be great
Dr Walczyk is the best So happy he takes my insurance
Verified patient
Highly Professional and Comprehensive Care: I had my first visit with this dermatologist today for a full skin cancer screening and to address a few other concerns. He was incredibly thorough, made me feel completely comfortable, and took the time to explain everything clearly. Highly recommend for anyone looking for a knowledgeable and attentive doctor.
Verified patient
Short time in the office.
Verified patient
Dr. Walczyk carefully listened to my not entirely clear problems after a vascular surgery. He understood my situation very well and explained the difference between truly important health issues and the discomforts that are unavoidable but can at least be eased. I had chafing in the groin and surrounding areas. He prescribed soothing treatments that worked immediately. I can only regret that I didn’t think to see a dermatologist earlier and didn’t find him right after the surgery, as I suffered unnecessarily for three weeks with discomfort in sensitive areas. A friendly, kind doctor with a calm sense of humor. Recently, unfortunately, I’ve had many medical visits with different specialists, but this one left me with the best impression. Marcin S.
Verified patient
It was a good experience, the provider was quite helpful and insightful. Would recommend and will be seeing him in the future.
Great doctor ! Astute clinician
Verified patient
Dr Walcyzck was pleasant and professional. He explained what needed to be done to resolve my skin issues. I’ve been his patient for over 20 years and will continue to recommend Dr Walcyzck to family and friends.
Verified patient
Best doctor
Great
Verified patient
Very easy and yes
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