William Sikov, MD
NPI 1811916661ActiveIndividual· Internal Medicine, Hematology & Oncology· Providence, RI
Internal Medicine, Hematology & Oncology (MD) in Providence, Rhode Island, trained at Yale University School of Medicine (class of 1982). Mostly services rather than prescriptions: Medicare paid $19,604 for 117 patients in 2024, with only 24 Part D claims. Astrazeneca Uk Limited was the largest of 3 companies reporting payments in 2024, $1,759 in all, mostly travel and lodging.
Overview
| NPI | 1811916661 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 19, 2006 |
| Last updated in NPPES | Jun 16, 2021 |
| Certified by provider | Mar 31, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | MD7581 | RI |
| Internal Medicine, Hematology | 207RH0000X | MD7581 | RI |
| Internal Medicine, Medical Oncology | 207RX0202X | MD7581 | RI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (MA); Practitioner - Hematology/Oncology (RI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 117 |
|---|---|
| Services billed | 275 across 6 procedure codes |
| Paid by Medicare | $19,604 |
Part D prescriptions in 2024
| Prescriptions (claims) | 24 · 44 30-day fills |
|---|---|
| Patients | 17 |
| Total drug cost | $284.77 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | Yale University School of Medicine |
|---|---|
| Graduation year | 1982 |
| Medicare specialty | Hematology/Oncology |
Medical group
- Affinity Physicians LLC.Warwick, RI · 730 clinicians
Hospital affiliations
- Kent County Memorial HospitalWarwick, RI
- Rhode Island HospitalProvidence, RI
- The Miriam HospitalProvidence, RI
- Women & Infants Hospital of Rhode IslandProvidence, RI
Industry payments (Open Payments)
- 2024$1,759 · 13 payments from 3 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Uk Limited | $1,683 | 11 |
| Gilead Sciences, Inc. | $45.75 | 1 |
| Stemline Therapeutics Inc. | $29.74 | 1 |
What the 2024 payments were for
- Travel and Lodging$992.07 · 2 payments
- Food and Beverage$766.73 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 64 hematologist-oncologists in Providence · All hematologist-oncologists in Rhode Island