Marianne Monahan

Marianne Monahan, MD

4.9 rating based on 79 ratings
(4.9/5 stars) 79 Reviews | 14 Comments
  • Purchase
    3030 Westchester Avenue, Purchase, NY 10577-2510
  • (914) 682-6454
  • (914) 683-6780
  • Greenwich
    644 West Putnam Avenue, Greenwich, CT 06830
  • (914) 682-6454
  • (203) 210-2801
  • Rye
    1 Theall Road, Rye, NY 10580-1404
  • (914) 682-6454
  • (914) 683-6780

About the Provider

Dr. Monahan is board certified in internal medicine and nephrology. She received her undergraduate degree from Harvard College and her medical degree from Tufts University School of Medicine. She completed her internship and residency at Mount Sinai Hospital and a nephrology fellowship at the same institution.

She spent one year as an instructor in the department of medicine at Columbia University. She was a Fellow at the Center of Glomerular Diseases, Division of Nephrology at Columbia University.

Dr. Monahan joined WESTMED Medical Group in July 2007. She is affiliated with White Plains Hospital, Greenwich Hospital, The Burke Rehabilitation Hospital and Port Chester Dialysis and Renal Center.

Medical School
Tufts University School of Medicine
Degree: Doctor of Medicine
Mount Sinai Hospital
Mount Sinai Hospital
Board Certification
Internal Medicine
Hospital Affiliation
Davita Port Chester-White Plains Dialysis Center
Greenwich Hospital
White Plains Hospital

Office Locations (3)

  • Purchase
    3030 Westchester Avenue
    Purchase, NY 10577-2510
    Ph: (914) 682-6454
    Fax: (914) 683-6780
  • Greenwich
    644 West Putnam Avenue
    Greenwich, CT 06830
    Ph: (914) 682-6454
    Fax: (203) 210-2801
  • Rye
    1 Theall Road
    Rye, NY 10580-1404
    Ph: (914) 682-6454
    Fax: (914) 683-6780


Excellent physician.
July 31, 2018
*Dr. Monahan was excellent and obviously knowledgeable.
June 29, 2018
It is a pleasure to have *Dr. Monahan as my physician.
June 28, 2018
Also good exp. with *Dr. Monahan only dr. I see at Westmed my ins. OK with this.
June 27, 2018
*Dr. Monahan is amazing.
May 23, 2018
all that I could ask for in an MD
May 16, 2018
*Dr. Monahan is exceptional! if only all doctors were like her.
May 7, 2018
Dr. Marianne Monahan is the best doctor I've ever had in my life. When I first started seeing her, she spotted a problem that the five doctors I had seen before her failed to understand or diagnose. Thanks to her, I got the necessary surgery.
April 21, 2018
Excellent. Thanks.
April 5, 2018
Showed concern, of which I appreciate.
March 28, 2018
Care provider was excellent when handling the care of patient.
February 8, 2018
*Dr. Monahan is the most compassion doctor she is kind & thoughtful & brag about her to everyone.
January 3, 2018
I wish all my doctors were like *Dr. Monahan.
December 4, 2017