Maria Susana Castejon Welchez, M.D.
NPI 1033396437ActiveIndividual· Hospitalist· Bismarck, ND
Hospitalist (M.D.) with Sanford Bismarck, practicing in Bismarck, North Dakota. 140 Medicare patients in 2024, $27,223 paid; nearly all of their 288 Part D prescriptions were generic (90%). Abbvie Inc. was the largest of 3 companies reporting payments in 2025, $72.55 in all, mostly food and beverage. Lists Sanford Medical Center Bismarck as a hospital affiliation.
Overview
| NPI | 1033396437 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 28, 2008 |
| Last updated in NPPES | Jul 23, 2021 |
| Certified by provider | Jul 23, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | 13905 | ND |
| Internal Medicine | 207R00000X | 13905 | ND |
| Internal Medicine | 207R00000X | 002746 | GA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (ND) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 140 |
|---|---|
| Services billed | 423 across 13 procedure codes |
| Paid by Medicare | $27,223 |
Part D prescriptions in 2024
| Prescriptions (claims) | 288 · 484 30-day fills |
|---|---|
| Patients | 104 |
| Total drug cost | $23,114 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Sanford BismarckBismarck, ND · 556 clinicians
Hospital affiliation
- Sanford Medical Center BismarckBismarck, ND
Industry payments (Open Payments)
- 2025$72.55 · 3 payments from 3 companies
- 2024$116.00 · 6 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $24.86 | 1 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $24.72 | 1 |
| Novo Nordisk Inc | $22.97 | 1 |
What the 2025 payments were for
- Food and Beverage$72.55 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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