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

Individual provider Gastroenterology Physician · NPI 1043287857

Dr. Wallen Cy Chan, MD is a Gastroenterology in Staten Island, New York. Graduated from Icahn School of Medicine at Mount Sinai in 1989, 37 years ago. Practices with Amboy Medical Practice PC, a 173-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
37
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

78 Todt Hill Rd
Staten Island, NY 10314-4528
Phone: (718) 448-1122
Fax: (718) 448-8318
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 183203 (NY)

Record details

NPI number1043287857
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 1, 2006
Last updated in NPPESApril 14, 2008

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
Graduated 1989 (37 years in practice)
Group practice Amboy Medical Practice Pc — 173 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Other providers in Staten Island