Rebecca Lipton Warkol, MD
NPI 1184820110ActiveIndividual· Internal Medicine· Old Greenwich, CT
Internal Medicine (MD) in Old Greenwich, Connecticut, trained at New York Medical College (class of 2003). Their prescriptions cost Medicare Part D more than their services did: $150,411 for 1,932 claims, against $58,273 paid for services in 2024. Medtronic, Inc. was the largest of 5 companies reporting payments in 2025, $244.31 in all, mostly food and beverage.
Overview
| NPI | 1184820110 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jun 26, 2007 |
| Last updated in NPPES | Aug 21, 2024 |
| Certified by provider | Aug 21, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 045522 | CT |
| Internal Medicine | 207R00000X | 241460-1 | NY |
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 (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 171 |
|---|---|
| Services billed | 1,170 across 22 procedure codes |
| Paid by Medicare | $58,273 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,932 · 4,590 30-day fills |
|---|---|
| Patients | 201 |
| Total drug cost | $150,411 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | New York Medical College |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Old Greenwich Medical Group LLCOld Greenwich, CT · 5 clinicians
- Rebecca Warkol MD LLCOld Greenwich, CT · 4 clinicians
Hospital affiliations
- Greenwich Hospital Association -Greenwich, CT
- Stamford HospitalStamford, CT
Industry payments (Open Payments)
- 2025$244.31 · 5 payments from 5 companies
- 2024$55.94 · 3 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $156.39 | 1 |
| Pfizer Inc. | $28.21 | 1 |
| Exact Sciences Corporation | $24.20 | 1 |
| Novo Nordisk Inc | $21.32 | 1 |
| Astrazeneca Pharmaceuticals LP | $14.19 | 1 |
What the 2025 payments were for
- Food and Beverage$244.31 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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