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Important Alerts:

For everyone’s safety and per CDC guidelines it is MANDATORY TO KEEP YOUR MASK ON AT ALL TIMES in our offices EVEN IF FULLY VACCINATED

COVID-19 Information and Updates

New COVID-19 Vaccine Availability For Ages 12+, Walk-Ins and Appointments. For the latest news about the COVID-19 vaccine, eligibility, testing and more click  here. Expect up to 3 days for results of the routine RNA Nasal Swab Test. Rapid testing is NOT routinely available. For more information, click here.

Important Notice: For patients who currently use a CPAP or BiPAP device for sleep apnea, Philips has issued a voluntary recall for certain PAP devices. Click here for more information.

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Ayelet Mizrachi-Jonisch, MD, FAAD

Ayelet Mizrachi-Jonisch, MD, FAAD


Dr. Ayelet Mizrachi graduated from N.Y.U. School of Medicine. She completed her residency in Dermatology and Dermatologic Surgery at Albert Einstein College of Medicine where she served as chief resident.

She is board certified in dermatology and dermatologic surgery.

Dr. Mizrachi is a fellow of the American Academy of Dermatology. She is on attending staff at Northern Westchester Hospital.

She practices general and cosmetic dermatology including botox, fillers, chemical peels and laser hair removal.


Katonah Campus
111 Bedford Road
Katonah, NY 10536-2115

Tuesday, Wednesday, Thursday

Awards & Recognition

New York Magazine Best Doctors Award: 2021

Castle Connolly Top Doctor: 2015 - 2020

  • Westchester Magazine: 2014 & 2015, 2017-2020
  • Westchester Magazine Top Cosmetic Doctor: 2019-2021


Undergraduate & Graduate

Binghamton University: 1999

Medical Education

New York University School of Medicine: 2003


Cabrini Medical Center: 2004


Chief Resident in Dermatology & Dermatologic Surgery
Albert Einstein College of Medicine: 2007

Board Certifications

Dermatology: 2007
Dermatologic Surgery


Hospital Affiliations

Northern Westchester Hospital

Professional Affiliations

Fellow of the American Academy of Dermatology