Quick answers
- Which hospitals does Maria A. Stys work at?
- Medicare's official clinician data lists Maria A. Stys at 5 hospitals: Sanford Canby Medical Center, Sanford Clear Lake Medical Center, Sanford Luverne Medical Center, Sanford Sheldon Medical Center and Sanford Usd Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Maria A. Stys see patients?
- Medicare's clinician data lists 6 practice locations, including Rock Rapids, IA, Sioux Falls, SD and Mitchell, SD. Call before your visit to confirm the address.
- What is Maria A. Stys's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does Maria A. Stys accept Medicare assignment?
- Yes. Medicare's clinician data says Maria A. Stys accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Maria A. Stys?
- (712) 472-2594, as listed in official Medicare / NPI Registry data.
- What is Maria A. Stys's NPI number?
- 1740493964. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Maria A. Stys works
Medicare's Facility Affiliation Data lists Maria A. Stys at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Sanford Canby Medical CenterCanby, MN · Critical Access Hospital · CCN 241347
- Sanford Clear Lake Medical CenterClear Lake, SD · Critical Access Hospital · CCN 431307
- Sanford Luverne Medical CenterLuverne, MN · Critical Access Hospital · CCN 241371
- Sanford Sheldon Medical CenterSheldon, IA · Critical Access Hospital · CCN 161381
- Sanford Usd Medical CenterSioux Falls, SD · Acute Care Hospital · CCN 430027
Practice locations
Addresses where Maria A. Stys is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 104 Buncombe DrRock Rapids, IA 51246 (712) 472‑2594
- 1301 W 18th StSioux Falls, SD 57105 (605) 312‑2200
- 1305 W 18th StSioux Falls, SD 57105
- 4405 E 26th StSioux Falls, SD 57103
- 525 N Foster StMitchell, SD 57301 (605) 995‑5635
Group practices
Medicare enrollment lists Maria A. Stys as a member of these groups (CMS data updated 2026-10-02).
- Sanford Medical Center857 clinicians in the group
- Sanford Clinic268 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Iowa →
Other cardiologists in Iowa
Clinicians with the same Medicare primary specialty in Iowa — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1992 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1740493964 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians