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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (15)

The overall average patient rating of Dr. Marcus Loo, Urologist is Good. Dr. Loo has been reviewed by 42 patients who have provided 15 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.1
Promptness 3.6
Courteous Staff 4.4
Accurate Diagnosis 4.4
Bedside Manner 4.1
Spends Time with Me 4.2
Follows Up After Visit 4.1

Specialties & Research

Dr. Marcus Loo, MD is board certified in Urology.

  • He has special expertise in 8 areas:
  • Enlarged Prostate (Prostatic Hyperplasia)
  • Kidney Stones (Kidney Calculi)
  • Kidney Stones (Nephrocalcinosis)
  • Overactive Urinary Bladder
  • Prostate Cancer (Prostatic Neoplasm)
  • Prostate Diseases (Prostatic Diseases)
  • Ureteral Obstruction
  • Urinary Bladder Cancer

Education & Awards

Dr. Loo graduated from Cornell University, New York. He has 6 awards.

Castle Connolly America's Top Doctors® (2009, 2011 - 2015)
Castle Connolly Top Doctors: New York Metro Area™ (1999 - 2008, 2010 - 2015)
Patients' Choice Award (2009)
Compassionate Doctor Recognition (2009, 2012 - 2013)
The Marquis Who's Who Publication Board *
The MarquisWho's Who Publication Board *


Dr. Loo has 3 hospital affiliations:

  • NewYork-Presbyterian / Weill Cornell 
  • New York Presbyterian HospitalNew York Weill Cornell Center 
  • New York Presbyterian / Westchester 


  • Spanish
  • Mandarin
  • Cantonese
  • Chinese

> > > > Dr. Marcus Loo, MD

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Additional Information
Dr. Marcus H Loo MD is a male Urologist, has 31 years of experience and practices in Urology.
Where does Dr. Marcus H. Loo practice?
Dr. Marcus Loo has 1 office location.
Dr. Marcus Loo practices Urology near New York, NY.
See New York Urologists.