William May Lee, M.D.
NPI 1568726248ActiveIndividual· Internal Medicine, Hematology & Oncology· Newark, DE
Internal Medicine, Hematology & Oncology (M.D.) with Christiana Care Health Services Inc and 1 other group, practicing in Newark, Delaware. Their prescriptions cost Medicare Part D more than their services did: $2,469,479 for 881 claims, against $76,672 paid for services in 2024. Ipsen Biopharmaceuticals, Inc was the largest of 6 companies reporting payments in 2025, $170.47 in all, mostly food and beverage. Lists Bayhealth Hospital, Sussex Campus and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1568726248 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 27, 2012 |
| Last updated in NPPES | Jun 21, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | C1-0012926 | DE |
| Internal Medicine, Hematology & Oncology | 207RH0003X | D86861 | MD |
| Internal Medicine, Hematology & Oncology | 207RH0003X | MD453444 | PA |
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 (DE); Practitioner - Hematology/Oncology (MD); Practitioner - Hematology/Oncology (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 235 |
|---|---|
| Services billed | 857 across 12 procedure codes |
| Paid by Medicare | $76,672 |
Part D prescriptions in 2024
| Prescriptions (claims) | 881 · 1,391 30-day fills |
|---|---|
| Patients | 159 |
| Total drug cost | $2,469,479 |
| Generic share | 73% of claims |
Education and affiliations
| Graduation year | 2012 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Christiana Care Health Services IncNewark, DE · 1,483 clinicians
- Medical Oncology Hematology Consultants PANewark, DE · 32 clinicians
Hospital affiliations
- Bayhealth Hospital, Sussex CampusMilford, DE
- Bayhealth Medical Center, Kent CampusDover, DE
- Beebe Medical CenterLewes, DE
- Christiana HospitalNewark, DE
- Union Hospital of Cecil CountyElkton, MD
Industry payments (Open Payments)
- 2025$170.47 · 7 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ipsen Biopharmaceuticals, Inc | $45.44 | 2 |
| Syndax Pharmaceuticals, Inc. | $28.72 | 1 |
| Genzyme Corporation | $28.54 | 1 |
| Novartis Pharmaceuticals Corporation | $28.13 | 1 |
| Adc Therapeutics America, Inc. | $20.00 | 1 |
What the 2025 payments were for
- Food and Beverage$170.47 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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