Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Mark R Liss, MD

Individual provider Specialist · NPI 1902906142

Dr. Mark R Liss, MD is a Gastroenterology in New Rochelle, New York. Graduated from Icahn School of Medicine at Mount Sinai in 1977, 49 years ago. Practices with Montefiore New Rochelle Hospital, a 63-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
49
Trained at
Icahn School of Medicine at Mount Sinai
Licensed in
NY
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

140 Lockwood Ave Ste 318
New Rochelle, NY 10801-4915
Phone: (914) 633-0888
Fax: (914) 633-0951
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence 137170 (NY)

Record details

NPI number1902906142
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 25, 2006
Last updated in NPPESDecember 13, 2010

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Medical schoolICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
Graduated 1977 (49 years in practice)
Group practice Montefiore New Rochelle Hospital — 63 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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