Ying Chen, MD
NPI 1184828600ActiveIndividual· Internal Medicine, Nephrology· Saint Louis, MO
Internal Medicine, Nephrology (MD) with Washington University, practicing in Saint Louis, Missouri. 32 Medicare patients in 2024, $7,329 paid; nearly all of their 53 Part D prescriptions were generic (92%). Amgen Inc. was the largest of 2 companies reporting payments in 2025, $205.42 in all, mostly food and beverage. Lists Barnes Jewish Hospital as a hospital affiliation.
Overview
| NPI | 1184828600 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 11, 2007 |
| Last updated in NPPES | Sep 16, 2025 |
| Certified by provider | Sep 16, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 2010008613 | MO |
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 - Nephrology (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 32 |
|---|---|
| Services billed | 107 across 10 procedure codes |
| Paid by Medicare | $7,329 |
Part D prescriptions in 2024
| Prescriptions (claims) | 53 · 93 30-day fills |
|---|---|
| Patients | 12 |
| Total drug cost | $1,640 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- Washington UniversitySaint Louis, MO · 3,029 clinicians
Hospital affiliation
- Barnes Jewish HospitalSaint Louis, MO
Industry payments (Open Payments)
- 2025$205.42 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $145.80 | 1 |
| Alnylam Pharmaceuticals Inc. | $59.62 | 1 |
What the 2025 payments were for
- Food and Beverage$205.42 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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