Justine Ryu, M.D.
NPI 1881058899ActiveIndividual· Internal Medicine, Hematology & Oncology· Orange, CT
Internal Medicine, Hematology & Oncology (M.D.) in Orange, Connecticut, trained at Boston University School of Medicine (class of 2016). Their prescriptions cost Medicare Part D more than their services did: $36,518 for 81 claims, against $12,086 paid for services in 2024. Genzyme Corporation reported $82,500 in payments in 2025, mostly grants.
Overview
| NPI | 1881058899 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Apr 6, 2016 |
| Last updated in NPPES | Aug 14, 2023 |
| Certified by provider | Aug 14, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 75447 | CT |
| Internal Medicine | 207R00000X | 267294 | MA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 85 |
|---|---|
| Services billed | 104 across 10 procedure codes |
| Paid by Medicare | $12,086 |
Part D prescriptions in 2024
| Prescriptions (claims) | 81 · 104 30-day fills |
|---|---|
| Patients | 20 |
| Total drug cost | $36,518 |
| Generic share | 38% of claims |
Education and affiliations
| Medical school | Boston University School of Medicine |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Hematology/Oncology |
Medical group
- Yale UniversityNew Haven, CT · 2,645 clinicians
Hospital affiliation
- Yale-New Haven HospitalNew Haven, CT
Industry payments (Open Payments)
- 2025$82,500 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $82,500 | 1 |
What the 2025 payments were for
- Grant$82,500 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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