Summary

Dr. Mark Liss is a gastroenterologist and internist who graduated from the Icahn School of Medicine at Mount Sinai and completed his residency at Mount Sinai Medical Center. With nearly five decades of medical practice, he brings extensive experience to digestive health care. Dr. Liss is fluent in both English and Spanish, allowing him to serve a diverse patient population.

Dr. Liss practices at Montefiore New Rochelle Hospital with locations in New Rochelle, Mount Vernon, and the Bronx. He specializes in treating conditions such as colon polyps, hemorrhoids, and diverticular disease. His expertise includes performing colonoscopies and other endoscopic procedures to diagnose and treat digestive system disorders. Patients have given him an average rating of 4.6 out of 5 stars on Vitals.

Overview based on verified provider data

Quick Facts

  • 4.6
  • 49 years of experience
  • 30 insurance plans accepted
  • speaks English, Spanish
  • Mount Sinai Medical Center
  • 7 written reviews
  • 2 specialties
  • 13 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 4 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Mark Richard Liss has 4 locations

Montefiore New Rochelle at 20 Cedar

20 Cedar StNew Rochelle, NY 10801

Montefiore New Rochelle Hospital

16 Guion PlNew Rochelle, NY 10801

Montefiore New Rochelle Hospital

16 Guion PlMount Vernon, NY 10550

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Dr. Mark Richard Liss, MDDr. Aga NagornaDr. Mikhail Yakubov, MDDr. Daniel Perl, MD
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients
4.6 
49 Years of Experience 7 Years of Experience 11 Years of Experience
No Virtual Visit Option No Virtual Visit Option Virtual Visit Available Virtual Visit Available
Speaks English, Spanish Speaks English Speaks English, Russian, Hebrew Speaks English
New Rochelle , NYBROOKLYN , NYNEW YORK , NYNEW YORK , NY
Med School: Icahn School Of Medicine At Mount Sinai Med School: Albert Einstein College of Medicine Med School: American University Of The Caribbean School Of Medicine Med School: Icahn School Of Medicine At Mount Sinai
Current Profile
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Insurance Plans Accepted by Dr. Mark Richard Liss

  • 1199SEIU
  • AARP
  • Aetna
  • Affinity Health Plan
  • AmeriGroup
  • Anthem Blue Cross
  • Blue Cross Blue Shield
  • Cigna
  • ConnectiCare
  • Elderplan
  • Elderplan - HMO
  • EmblemHealth
  • EmblemHealth - HMO
  • Fidelis Care (NY)
  • HealthFirst (NY)
  • HealthFirst (NY) - HMO
  • Humana
  • Mail Handlers Benefit Plan
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Molina Healthcare
  • MVP Health Care
  • MVP Health Care - Medicaid (Managed)
  • Neighborhood Health Plan
  • PreferredOne
  • UnitedHealthcare
  • UnitedHealthcare Oxford
  • Wellcare

Medical Specialties

Dr. Mark Richard Liss has the following 2 specialties

Specialty Expertise

Dr. Mark Richard Liss has the following 13 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Celiac Disease
  • Colonoscopy
  • Constipation
  • Endoscopy (Endoscopic Surgery)
  • Hemorrhoids
  • Hepatitis C
  • Inflammatory Bowel Diseases (IBD)
  • Internal Medicine
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Certifications, License, & Education

49 Years Experience

Dr. Mark Richard Liss holds an active medical license in the state of New York.

Medical License

Medical Doctor with an active medical license in the state of New York that expires in 2026.

Education & Training

Residency

Completed their residency at Mount Sinai Medical Center.

Medical School

Graduated from Icahn School Of Medicine At Mount Sinai in 1977.

NPI Number

Dr. Liss' NPI number is 1902906142.

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Frequently Asked Questions

Is Dr. Mark Liss accepting new patients?
Dr. Mark Liss has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. Mark Liss accept my insurance?
You can see the insurance plans that Dr. Mark Liss accepts on their Vitals profile.
How can I make an appointment with Dr. Mark Liss?
You can find contact information for Dr. Mark Liss here on Vitals.
Does Dr. Mark Liss accept virtual/telehealth appointments?
Dr. Mark Liss has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Which hospitals is Dr. Mark Liss affiliated with?
Dr. Mark Liss is affiliated with Montefiore New Rochelle Hospital.

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