Tianyu Dong
NPI 1073160024ActiveIndividual· Internal Medicine· Evanston, IL
Internal Medicine with Mercy Health System Corporation, practicing in Evanston, Illinois. Their prescriptions cost Medicare Part D more than their services did: $566,066 for 7,142 claims, against $48,328 paid for services in 2024. Cardiva Medical, Inc. reported $45.16 in payments in 2025, mostly food and beverage. Lists Mercy Health System Corp and 1 other hospital as hospital affiliations.
Overview
| NPI | 1073160024 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Aug 23, 2019 |
| Last updated in NPPES | Jun 3, 2025 |
| Certified by provider | Jun 3, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036159890 | IL |
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 (IL); Practitioner - Internal Medicine (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 280 |
|---|---|
| Services billed | 1,954 across 40 procedure codes |
| Paid by Medicare | $48,328 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,142 · 14,550 30-day fills |
|---|---|
| Patients | 695 |
| Total drug cost | $566,066 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Mercy Health System CorporationJanesville, WI · 753 clinicians
Hospital affiliations
- Mercy Health System CorpJanesville, WI
- Saint Anthony Medical CenterRockford, IL
Other facilities
- Mercyhealth at HomeHome health agency · Janesville, WI
Industry payments (Open Payments)
- 2025$45.16 · 1 payment from 1 company
- 2024$90.56 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Cardiva Medical, Inc. | $45.16 | 1 |
What the 2025 payments were for
- Food and Beverage$45.16 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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