Quick answers
- Which hospitals does Louann L. Streff work at?
- Medicare's official clinician data lists Louann L. Streff at 3 hospitals: Prairie Lakes Healthcare System, Inc, Sanford Clear Lake Medical Center and Sanford Usd Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Louann L. Streff see patients?
- Medicare's clinician data lists 3 practice locations, including Clark, SD, Sioux Falls, SD and Watertown, SD. Call before your visit to confirm the address.
- What is Louann L. Streff's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Louann L. Streff accept Medicare assignment?
- Yes. Medicare's clinician data says Louann L. Streff 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 Louann L. Streff?
- (605) 532-3676, as listed in official Medicare / NPI Registry data.
- What is Louann L. Streff's NPI number?
- 1740269265. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Louann L. Streff works
Medicare's Facility Affiliation Data lists Louann L. Streff at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Prairie Lakes Healthcare System, IncWatertown, SD · Acute Care Hospital · CCN 430005
- Sanford Clear Lake Medical CenterClear Lake, SD · Critical Access Hospital · CCN 431307
- Sanford Usd Medical CenterSioux Falls, SD · Acute Care Hospital · CCN 430027
Practice locations
Addresses where Louann L. Streff is enrolled with Medicare (CMS data updated 2026-10-02).
- 211 N Commercial St, Suite BClark, SD 57225 (605) 532‑3676
- 4405 E 26th StSioux Falls, SD 57103
- 901 4th St NWWatertown, SD 57201 (605) 886‑8471
Group practices
Medicare enrollment lists Louann L. Streff as a member of this group (CMS data updated 2026-10-02).
- Sanford Medical Center857 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in South Dakota
Clinicians with the same Medicare primary specialty in South Dakota — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 1990 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1740269265 |
| 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