Kemin Chen, PA
NPI 1326278102ActiveIndividual· Physician Assistant· Creve Coeur, MO
Physician Assistant (PA) with Mercy East Ambulatory Services LLC and 1 other group, practicing in Creve Coeur, Missouri. In 2024 Medicare paid $11,210 for 129 patients, and Part D covered 312 of their prescriptions, 82% of them generic. Boston Scientific Corporation reported $164.02 in payments in 2025, mostly food and beverage. Lists Mercy Hospital St Louis and 1 other hospital as hospital affiliations.
Overview
| NPI | 1326278102 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | No |
| NPI issued | Jul 15, 2009 |
| Last updated in NPPES | Jan 29, 2020 |
| Certified by provider | Jan 29, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 2014038545 | MO |
| Specialist, Research Study | 1744R1102X | — | — |
| General Practice | 208D00000X | 2014038545 | MO |
| Physician Assistant | 363A00000X | 085.005369 | 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 - Physician Assistant (IL); Practitioner - Physician Assistant (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 129 |
|---|---|
| Services billed | 257 across 28 procedure codes |
| Paid by Medicare | $11,210 |
Part D prescriptions in 2024
| Prescriptions (claims) | 312 · 332 30-day fills |
|---|---|
| Patients | 208 |
| Total drug cost | $5,434 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical groups
- Mercy East Ambulatory Services LLCChesterfield, MO · 105 clinicians
- Tatyana Petrosova MD PCLake Saint Louis, MO · 2 clinicians
Hospital affiliations
- Mercy Hospital St LouisSaint Louis, MO
- Ssm St Joseph Hospital WestLake Saint Louis, MO
Industry payments (Open Payments)
- 2025$164.02 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $164.02 | 2 |
What the 2025 payments were for
- Food and Beverage$164.02 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other physician assistants in Creve Coeur
- 1861956765
- 1932363462
- 1659895266
- 1316353121
- 1447960638
- 1023861192
- 1902601321
- 1366557209
- 1457918450
- 1992949531
- 1134080823
- 1699850529