Stephen Tracy Oh, MD
NPI 1841494358ActiveIndividual· Internal Medicine, Hematology· Saint Louis, MO
Internal Medicine, Hematology (MD) in Saint Louis, Missouri, trained at Northwestern University Feinberg Medical School (class of 2004). Their prescriptions cost Medicare Part D more than their services did: $6,352,717 for 521 claims, against $43,933 paid for services in 2024. Takeda Pharmaceuticals U.S.A., Inc. was the largest of 8 companies reporting payments in 2025, $34,444 in all, mostly consulting fees.
Overview
| NPI | 1841494358 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 11, 2007 |
| Last updated in NPPES | Apr 17, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology Primary | 207RH0000X | 2010042897 | 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 - Hematology (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 80 |
|---|---|
| Services billed | 2,968 across 55 procedure codes |
| Paid by Medicare | $43,933 |
Part D prescriptions in 2024
| Prescriptions (claims) | 521 · 712 30-day fills |
|---|---|
| Patients | 72 |
| Total drug cost | $6,352,717 |
| Generic share | 37% of claims |
Education and affiliations
| Medical school | Northwestern University Feinberg Medical School |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Hematology |
| Secondary specialties | Internal Medicine, Preventive Medicine |
Medical group
- Washington UniversitySaint Louis, MO · 3,029 clinicians
Hospital affiliations
- Barnes Jewish HospitalSaint Louis, MO
- Barnes-Jewish St Peters HospitalSaint Peters, MO
Industry payments (Open Payments)
- 2025$34,444 · 40 payments from 8 companies
- 2024$19,975 · 12 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Takeda Pharmaceuticals U.S.A., Inc. | $15,711 | 10 |
| Incyte Corporation | $11,623 | 17 |
| Pharmaessentia USA Corporation | $6,888 | 3 |
| Glaxosmithkline, LLC. | $88.65 | 4 |
| Sobi, Inc | $73.58 | 3 |
What the 2025 payments were for
- Consulting Fee$31,614 · 5 payments
- Travel and Lodging$1,923 · 12 payments
- Food and Beverage$899.31 · 22 payments
- Education$8.01 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Hematology providers in Saint Louis
- 1831539808
- 1497282115
- 1003872615
- 1215953526
- 1831464130
- 1114976818
- 1912924473
- 1619549078
- 1326064544
- 1558665844
- 1528252483
- 1467944520