Quick answers
- Which hospitals does Randall S. Fenner work at?
- Medicare's official clinician data lists Randall S. Fenner at 5 hospitals: Orange City Area Health System, Sanford Sheldon Medical Center, Sanford Usd Medical Center, Sanford Vermillion Medical Center and Sanford Worthington Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Randall S. Fenner see patients?
- Medicare's clinician data lists 3 practice locations, including Sioux Falls, SD. Call before your visit to confirm the address.
- What is Randall S. Fenner's specialty?
- Medicare lists Endocrinology as the primary specialty.
- Does Randall S. Fenner accept Medicare assignment?
- Yes. Medicare's clinician data says Randall S. Fenner 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.
- Does Randall S. Fenner offer telehealth?
- Medicare's clinician data says Randall S. Fenner offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Randall S. Fenner?
- (605) 312-2200, as listed in official Medicare / NPI Registry data.
- What is Randall S. Fenner's NPI number?
- 1073780375. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Randall S. Fenner works
Medicare's Facility Affiliation Data lists Randall S. Fenner at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Orange City Area Health SystemOrange City, IA · Critical Access Hospital · CCN 161360
- Sanford Sheldon Medical CenterSheldon, IA · Critical Access Hospital · CCN 161381
- Sanford Usd Medical CenterSioux Falls, SD · Acute Care Hospital · CCN 430027
- Sanford Vermillion Medical CenterVermillion, SD · Critical Access Hospital · CCN 431336
- Sanford Worthington Medical CenterWorthington, MN · Acute Care Hospital · CCN 240022
Practice locations
Addresses where Randall S. Fenner is enrolled with Medicare (CMS data updated 2026-10-02).
- 1301 W 18th StSioux Falls, SD 57105 (605) 312‑2200
- 1305 W 18th StSioux Falls, SD 57105
- 4405 E 26th StSioux Falls, SD 57103
Group practices
Medicare enrollment lists Randall S. Fenner as a member of this group (CMS data updated 2026-10-02).
- Sanford Medical Center857 clinicians in the group
Specialties
- Endocrinologyprimary
Other endocrinologists in Sioux Falls
Clinicians with the same Medicare primary specialty in Sioux Falls, SD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Sanford School Of Medicine Of University Of South Dakota |
| Graduation year | 2008 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1073780375 |
| 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