Joseph L. Wang, M.D.
NPI 1437118718ActiveIndividual· Internal Medicine, Gastroenterology· Jefferson City, MO
Internal Medicine, Gastroenterology (M.D.) in Jefferson City, Missouri, trained at Northwestern University Feinberg Medical School (class of 1994). 504 Medicare patients in 2024, $101,101 paid; nearly all of their 708 Part D prescriptions were generic (92%). Phathom Pharmaceuticals, Inc. was the largest of 13 companies reporting payments in 2025, $631.93 in all, mostly food and beverage.
Overview
| NPI | 1437118718 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 23, 2006 |
| Last updated in NPPES | Oct 21, 2025 |
| Certified by provider | Oct 21, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 105279 | MO |
| Internal Medicine, Gastroenterology | 207RG0100X | MD-26081 | HI |
| Internal Medicine | 207R00000X | 105279 | 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 - Gastroenterology (HI); Practitioner - Gastroenterology (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 504 |
|---|---|
| Services billed | 1,265 across 68 procedure codes |
| Paid by Medicare | $101,101 |
Part D prescriptions in 2024
| Prescriptions (claims) | 708 · 1,174 30-day fills |
|---|---|
| Patients | 204 |
| Total drug cost | $101,458 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Northwestern University Feinberg Medical School |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical groups
- Lester E Cox Medical CentersSpringfield, MO · 345 clinicians
- Ssm Regional Health ServicesJefferson City, MO · 166 clinicians
- Kau HospitalHilo, HI · 140 clinicians
- Hilo Benioff Medical CenterHilo, HI · 129 clinicians
- Jefferson City Medical Group PCJefferson City, MO · 119 clinicians
Hospital affiliations
- Cox Medical CentersSpringfield, MO
- Hilo Benioff Medical CenterHilo, HI
- Ssm Health St. Mary's Hospital - Jefferson CityJefferson City, MO
- University of Missouri Health CareColumbia, MO
Industry payments (Open Payments)
- 2025$631.93 · 31 payments from 13 companies
- 2024$738.62 · 35 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Phathom Pharmaceuticals, Inc. | $168.19 | 3 |
| Abbvie Inc. | $135.36 | 11 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $82.21 | 4 |
| Takeda Pharmaceuticals U.S.A., Inc. | $61.54 | 3 |
| Janssen Biotech, Inc. | $37.10 | 2 |
What the 2025 payments were for
- Food and Beverage$631.93 · 31 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Gastroenterology providers in Jefferson City
- 1659683498
- 1548421183
- 1346220746
- 1578825485
- 1376528844
- 1699751248
All Internal Medicine, Gastroenterology providers in Missouri →