Mary Joy L. Sia Su, MD
NPI 1356374136ActiveIndividual· Hospitalist· St Cloud, MN
Hospitalist (MD) with Allina Health System and 3 other groups, practicing in St Cloud, Minnesota. 470 Medicare patients in 2024, $76,107 paid; nearly all of their 206 Part D prescriptions were generic (94%). Lists Allina United Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1356374136 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 7, 2006 |
| Last updated in NPPES | Mar 11, 2021 |
| Certified by provider | Mar 11, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | 44485 | MN |
| Internal Medicine | 207R00000X | 44485 | MN |
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 - Internal Medicine (MN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 470 |
|---|---|
| Services billed | 767 across 13 procedure codes |
| Paid by Medicare | $76,107 |
Part D prescriptions in 2024
| Prescriptions (claims) | 206 · 225 30-day fills |
|---|---|
| Patients | 66 |
| Total drug cost | $4,822 |
| Generic share | 94% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Hospitalist |
| Telehealth | Offers telehealth |
Medical groups
- Allina Health SystemNew Ulm, MN · 3,842 clinicians
- Centracare ClinicSaint Cloud, MN · 791 clinicians
- Centracare Health-Paynesville LLCRichmond, MN · 58 clinicians
- Centracare Health System-Nr LLCMonticello, MN · 58 clinicians
Hospital affiliations
- Allina United HospitalSaint Paul, MN
- Alomere HealthAlexandria, MN
- Centracare - St. Cloud HospitalSaint Cloud, MN
- Centracare Health - MonticelloMonticello, MN
- Centracare- Rice Memorial HospitalWillmar, MN
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other hospitalists in St Cloud
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All 29 hospitalists in St Cloud · All hospitalists in Minnesota