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Dr. James J. Yoon, a hematologist-oncologist based in Manhattan, NY, practices with Memorial Hematology Lymphoma Group.
Key facts
- Specialty
- Hematologist-oncologist
- Credentials
- MD
- Practice
- Memorial Hematology Lymphoma Group
- Address
- 1275 York Ave, New York, NY 10065
- Phone
- (212) 639-2000
- Medical school
- Icahn School of Medicine at Mount Sinai (2017)
- Medicare assignment
- Accepts
- NPI number
- 1669903548
- NY license no.
- 329655
Dr. Yoon earned his medical degree at Icahn School of Medicine at Mount Sinai in 2017 — 9 years ago.
You'll find Dr. Yoon at 1275 York Ave, New York, NY 10065. Call (212) 639-2000 to schedule. The group behind the practice, Memorial Hematology Lymphoma Group, lists 216 clinicians with Medicare. For Medicare patients: Dr. Yoon accepts assignment.
Have you been a patient of Dr. Yoon? A short, fair review — what went well, what didn't — helps the next person choosing a hematologist-oncologist in Manhattan.
Medicare, Medicaid and hospitals
- Medicare patients (2024)
- 89 people with traditional Medicare, average age 75
- New York Medicaid
- Enrolled fee-for-service provider since 2025. Medicaid managed-care plans keep their own networks, so check with your plan.
Medicare figures cover people with traditional (fee-for-service) Medicare only; services billed for fewer than 11 patients are not published.
Comparing oncologists? See 297 in Manhattan or 380 across New York City.
Other oncologists in Manhattan
Dr. Maya Dimitrova, MDHematologist-Oncologist · New York UniversityNo reviews yetNew York, NY
Dr. Meena Ahluwalia, MDHematologist-Oncologist · Hemant Patel MD PCNo reviews yetNew York, NY
Dr. Megan D. Winner, MDSurgical Oncologist · New York UniversityNo reviews yetNew York, NY
Dr. Meghan C. Thompson, MDMedical Oncologist · Memorial Hematology Lymphoma GroupNo reviews yetNew York, NY
Dr. Meghna S. Trivedi, MDMedical Oncologist · Trustees of Columbia University in the City of New YorkNo reviews yetNew York, NY
Dr. Melanie W. Kier, MDMedical Oncologist · Icahn School of Medicine at Mount SinaiNo reviews yetNew York, NYWrite a review
Frequently Asked Questions
With Memorial Hematology Lymphoma Group, at 1275 York Ave, New York, NY 10065.
Call the office at (212) 639-2000.
Yes — Dr. Yoon accepts Medicare assignment, taking the Medicare-approved amount as full payment for covered services.
Icahn School of Medicine at Mount Sinai, graduating in 2017.
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