William M. Chasanov II, D.O.
NPI 1104028919ActiveIndividual· Internal Medicine, Infectious Disease· Lewes, DE
Internal Medicine, Infectious Disease (D.O.) in Lewes, Delaware, trained at Philadelphia College of Osteopathic Medicine (class of 2007). Part D covered 80 prescriptions written in 2024, 34% of them generic. Boston Scientific Corporation was the largest of 4 companies reporting payments in 2025, $173.90 in all, mostly food and beverage.
Overview
| NPI | 1104028919 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Jun 4, 2007 |
| Last updated in NPPES | Feb 9, 2026 |
| Certified by provider | Feb 9, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | C7-0003733 | DE |
| Internal Medicine | 207R00000X | C7-0003773 | DE |
| Internal Medicine, Infectious Disease | 207RI0200X | 25MB09331000 | NJ |
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 - Infectious Disease (DE) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 80 · 106 30-day fills |
|---|---|
| Patients | 17 |
| Total drug cost | $167,351 |
| Generic share | 34% of claims |
Education and affiliations
| Medical school | Philadelphia College of Osteopathic Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Infectious Disease |
| Secondary specialties | Internal Medicine |
Medical group
- Beebe Physician Network Inc.Rehoboth Beach, DE · 310 clinicians
Hospital affiliation
- Beebe Medical CenterLewes, DE
Industry payments (Open Payments)
- 2025$173.90 · 5 payments from 4 companies
- 2024$53.25 · 3 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $86.57 | 1 |
| Insmed, Inc. | $31.10 | 2 |
| Abbvie Inc. | $30.53 | 1 |
| Merck Sharp & Dohme LLC | $25.70 | 1 |
What the 2025 payments were for
- Food and Beverage$148.20 · 4 payments
- Education$25.70 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Infectious Disease providers in Lewes
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All Internal Medicine, Infectious Disease providers in Delaware →