Parker Chi-Sung Chang, MD
NPI 1801639216ActiveIndividual· Surgery· Saint Louis, MO
Surgery (MD) in Saint Louis, Missouri, licensed in MO, with an NPI issued in June 2024. Part D covered 46 prescriptions written in 2024, 98% of them generic. Baxter Healthcare was the largest of 2 companies reporting payments in 2025, $27.35 in all, mostly food and beverage.
Overview
| NPI | 1801639216 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jun 13, 2024 |
| Last updated in NPPES | Jun 13, 2024 |
| Certified by provider | Jun 13, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 2024020418 | 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 Order and Referring Only - General Surgery (MO) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 46 · 46 30-day fills |
|---|---|
| Patients | 30 |
| Total drug cost | $548.47 |
| Generic share | 98% of claims |
Industry payments (Open Payments)
- 2025$27.35 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Baxter Healthcare | $15.16 | 1 |
| Kerecis Limited | $12.19 | 1 |
What the 2025 payments were for
- Food and Beverage$27.35 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Surgery providers in Saint Louis
- 1881079994
- 1922426725
- 1720245376
- 1285601989
- 1336373000
- 1992962674
- 1255597738
- 1518140011
- 1437109766
- 1326087792
- 1912253865
- 1568556439