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

Constantine Yiachos, MD

Individual provider Gastroenterology Physician · NPI 1063588127

Constantine Yiachos, MD is a Gastroenterology in Staten Island, New York. Graduated from State University of New York Downstate Medical Center in 1985, 41 years ago. Practices with Icahn School of Medicine at Mount Sinai, a 32-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
41
Trained at
State University of New York Downstate Medical Center
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

129 Slosson Ave
Staten Island, NY 10314-2522
Phone: (718) 720-5928
Fax: (718) 720-6706
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 172409 (NY)

Record details

NPI number1063588127
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 28, 2006
Last updated in NPPESNovember 16, 2023
Certification dateNovember 16, 2023

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolSTATE UNIVERSITY OF NEW YORK DOWNSTATE MEDICAL CENTER
Graduated 1985 (41 years in practice)
Group practice Icahn School Of Medicine At Mount Sinai — 32 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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