Karen W. Williams, M.D.
NPI 1316262868ActiveIndividual· Internal Medicine· Tamarac, FL
Internal Medicine (M.D.) in Tamarac, Florida, licensed in FL and MD, with an NPI issued in March 2010. Their prescriptions cost Medicare Part D more than their services did: $248,311 for 2,536 claims, against $45,303 paid for services in 2024. Exact Sciences Corporation was the largest of 5 companies reporting payments in 2025, $143.52 in all, mostly food and beverage.
Overview
| NPI | 1316262868 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 27, 2010 |
| Last updated in NPPES | Aug 22, 2025 |
| Certified by provider | Aug 22, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | ME142100 | FL |
| Internal Medicine | 207R00000X | D77990 | MD |
| Pediatrics | 208000000X | D77990 | MD |
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 - Internal Medicine (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 123 |
|---|---|
| Services billed | 485 across 31 procedure codes |
| Paid by Medicare | $45,303 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,536 · 6,222 30-day fills |
|---|---|
| Patients | 332 |
| Total drug cost | $248,311 |
| Generic share | 87% of claims |
Industry payments (Open Payments)
- 2025$143.52 · 7 payments from 5 companies
- 2024$336.98 · 18 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $44.95 | 2 |
| Amgen Inc. | $38.96 | 2 |
| Glaxosmithkline, LLC. | $22.07 | 1 |
| Novo Nordisk Inc | $21.25 | 1 |
| Lilly USA, LLC | $16.29 | 1 |
What the 2025 payments were for
- Food and Beverage$143.52 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Tamarac
- 1033121116
- 1033281191
- 1134431455
- 1144205907
- 1174747810
- 1184796260
- 1225052103
- 1255415915
- 1275598476
- 1295797645
- 1427036995
- 1457336943
All 75 internal medicine physicians in Tamarac · All internal medicine physicians in Florida