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Memorial Day Hours & Measles Important Information

Monday, May 27th – Memorial Day Holiday Hours:

The following offices will be open on Memorial Day. All other CareMount offices will be closed in observance of the holiday.

Urgent Care Hours:

  • Mount Kisco: 8am – 8pm
  • Yorktown Veterans Road: 8am – 5pm
  • Thornwood: 8am – 5pm
  • Carmel: 8am- 5pm
  • Fishkill Westage: 8am-5pm
  • Poughkeepsie Columbia: 9am-7pm
  • Rhinebeck: 8am-5pm
  • Kingston: CLOSED

Other Office Hours:

  • Mount Kisco Internal Medicine: Please visit Mount Kisco Urgent Care
  • Mount Kisco Pediatrics: 9am- 1pm
  • Briarcliff Pediatrics: 9am-1pm
  • Kingston Pediatrics: CLOSED


Measles is here! Learn more about the Measles threat and prevention.

The New York State measles hotline, 1-888-364-4837, is available for community members with any questions regarding the measles or what to do if they are experiencing symptoms.


Maud L. Lemercier, MD

Maud L. Lemercier, MD

General Surgery

Accepting New Patients
New Cancer Patient Appointments: 1-844-484-3292


Katonah Campus
111 Bedford Road
Katonah, NY 10536-2115

Wednesday, Friday

Mount Kisco Campus - 110
110 South Bedford Road
Mount Kisco, NY 10549-3412

Tuesday, Thursday


Undergraduate & Graduate

Bryn Mawr College, Pennsylvania:1991

Medical Education

Temple University School of Medicine: 1999
Georgetown University: 1995


Integrated Residency in General Surgery
University of Connecticut School of Medicine: 2005


Surgical Crtical Care
University of Connecticut School of Medicine, Hartford Hospital: 2003

Board Certifications

General Surgery: 2006


Awards & Recognition

Best Doctor Award - New York Magazine: 2015

Castle Connolly Top Doctor: 2013 - 2019

  • Westchester Magazine: 2013 - 2015, 2017, 2018


Hospital Affiliations

Northern Westchester Hospital

Ambulatory Surgery Center of Westchester