Yuanyuan Zhang, M.D.
NPI 1144546961ActiveIndividual· Internal Medicine· Bear, DE
Internal Medicine (M.D.) with Christiana Care Health Services Inc and 1 other group, practicing in Bear, Delaware. Their prescriptions cost Medicare Part D more than their services did: $1,155,336 for 6,628 claims, against $441,867 paid for services in 2024. Novo Nordisk Inc was the largest of 12 companies reporting payments in 2025, $714.97 in all, mostly food and beverage. Lists Beebe Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1144546961 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 19, 2010 |
| Last updated in NPPES | Apr 7, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | C1-0009709 | DE |
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 - Cardiovascular Disease (Cardiology) (DE); Practitioner - Cardiovascular Disease (Cardiology) (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 2,674 |
|---|---|
| Services billed | 6,851 across 44 procedure codes |
| Paid by Medicare | $441,867 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,628 · 17,031 30-day fills |
|---|---|
| Patients | 937 |
| Total drug cost | $1,155,336 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Cardiovascular Disease (Cardiology) |
Medical groups
- Christiana Care Health Services IncNewark, DE · 1,483 clinicians
- Cardiology Physicians, LLCNewark, DE · 49 clinicians
Hospital affiliations
- Beebe Medical CenterLewes, DE
- Christiana HospitalNewark, DE
- Union Hospital of Cecil CountyElkton, MD
Industry payments (Open Payments)
- 2025$714.97 · 25 payments from 12 companies
- 2024$938.66 · 56 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $286.22 | 4 |
| E.R. Squibb & Sons, L.L.C. | $76.27 | 4 |
| Pfizer Inc. | $70.33 | 3 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $63.58 | 2 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $39.24 | 3 |
What the 2025 payments were for
- Food and Beverage$714.97 · 25 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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