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In Staten Island, Dr. Constantine Yiachos works as a gastroenterologist at Icahn School of Medicine at Mount Sinai.

Dr. Yiachos earned his medical degree at State University of New York Downstate Medical Center in 1985 — 41 years ago.

You'll find Dr. Yiachos at 129 Slosson Ave, Staten Island, NY 10314. Call (718) 720-5928 to schedule. He also has a listed practice location at 1441 S Ave, Staten Island, NY 10314. Icahn School of Medicine at Mount Sinai is a group — 33 clinicians are enrolled with Medicare under it. For Medicare patients: Dr. Yiachos accepts assignment.

On the hospital side, Dr. Yiachos holds affiliations with Richmond University Medical Center and Staten Island University Hospital.

Dr. Yiachos at a glance

Specialty
Gastroenterologist
Credentials
MD
Practice
Icahn School of Medicine at Mount Sinai
Address
129 Slosson Ave, Staten Island, NY 10314
Phone
(718) 720-5928
Other locations
1441 S Ave, Staten Island, NY 10314
Medical school
State University of New York Downstate Medical Center (1985)
Hospital affiliations
Richmond University Medical Center, Staten Island University Hospital
Medicare assignment
Accepts
NPI number
1063588127
NY license no.
172409

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Medicare, Medicaid and hospitals

Medicare patients (2024)
572 people with traditional Medicare, average age 72
Most common services billed to Medicare
  • Diagnostic exam of large bowel using a flexible endoscope
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope
  • Biopsy of large bowel using a flexible endoscope
Procedures on Medicare Care Compare
  • Colonoscopy 153 procedures
  • Upper gastrointestinal (GI) endoscopy for acid reflux 49 procedures
New York Medicaid
Enrolled fee-for-service provider since 2013. Medicaid managed-care plans keep their own networks, so check with your plan.
Hospital pages
Richmond University Medical Center · Staten Island University Hospital

Medicare figures cover people with traditional (fee-for-service) Medicare only; services billed for fewer than 11 patients are not published.

Comparing gastroenterologists? See 11 in Staten Island or 303 across New York City.

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Frequently Asked Questions

With Icahn School of Medicine at Mount Sinai, at 129 Slosson Ave, Staten Island, NY 10314.

Call the office at (718) 720-5928.

Yes — Dr. Yiachos accepts Medicare assignment, taking the Medicare-approved amount as full payment for covered services.

Richmond University Medical Center and Staten Island University Hospital.

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