Tao Du, M.D.
NPI 1376704916ActiveIndividual· Hospitalist· Flushing, NY
Hospitalist (M.D.) with Old Greenwich Medical Group LLC, practicing in Flushing, New York. 251 Medicare patients in 2024, $68,677 paid; nearly all of their 1,458 Part D prescriptions were generic (92%). Madrigal Pharmaceuticals was the largest of 9 companies reporting payments in 2025, $526.53 in all, mostly food and beverage. Lists Greenwich Hospital Association - as a hospital affiliation.
Overview
| NPI | 1376704916 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 17, 2008 |
| Last updated in NPPES | Jun 6, 2025 |
| Certified by provider | Jun 6, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | 49803 | CT |
| Internal Medicine | 207R00000X | 049803 | CT |
| Internal Medicine | 207R00000X | 263632 | NY |
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 - Internal Medicine (CT); Practitioner - Internal Medicine (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 251 |
|---|---|
| Services billed | 767 across 39 procedure codes |
| Paid by Medicare | $68,677 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,458 · 2,868 30-day fills |
|---|---|
| Patients | 234 |
| Total drug cost | $72,148 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 1990 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Old Greenwich Medical Group LLCOld Greenwich, CT · 5 clinicians
Hospital affiliation
- Greenwich Hospital Association -Greenwich, CT
Industry payments (Open Payments)
- 2025$526.53 · 15 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $136.90 | 1 |
| Amgen Inc. | $125.00 | 1 |
| Pfizer Inc. | $66.63 | 3 |
| Esperion Therapeutics, Inc. | $62.21 | 3 |
| Merck Sharp & Dohme LLC | $44.91 | 2 |
What the 2025 payments were for
- Food and Beverage$526.53 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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