Quick answers
- Which hospitals does Jennifer E. Williamson work at?
- Medicare's official clinician data lists Jennifer E. Williamson at 4 hospitals: Monument Health Custer Hospital, Monument Health Rapid City Hospital, Monument Health Spearfish Hospital and Monument Health Sturgis Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jennifer E. Williamson see patients?
- Medicare's clinician data lists 2 practice locations, including Rapid City, SD. Call before your visit to confirm the address.
- What is Jennifer E. Williamson's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Jennifer E. Williamson accept Medicare assignment?
- Yes. Medicare's clinician data says Jennifer E. Williamson 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 Jennifer E. Williamson?
- (605) 755-3300, as listed in official Medicare / NPI Registry data.
- What is Jennifer E. Williamson's NPI number?
- 1427305721. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jennifer E. Williamson works
Medicare's Facility Affiliation Data lists Jennifer E. Williamson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Monument Health Custer HospitalCuster, SD · Critical Access Hospital · CCN 431323
- Monument Health Rapid City HospitalRapid City, SD · Acute Care Hospital · CCN 430077
- Monument Health Spearfish HospitalSpearfish, SD · Acute Care Hospital · CCN 430048
- Monument Health Sturgis HospitalSturgis, SD · Critical Access Hospital · CCN 431321
Practice locations
Addresses where Jennifer E. Williamson is enrolled with Medicare (CMS data updated 2026-10-02).
- 353 Fairmont BlvdRapid City, SD 57701
- 640 Flormann StRapid City, SD 57701 (605) 755‑3300
Group practices
Medicare enrollment lists Jennifer E. Williamson as a member of this group (CMS data updated 2026-10-02).
- Monument Health Rapid City Hospital Inc564 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Rapid City
Clinicians with the same Medicare primary specialty in Rapid City, SD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2006 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1427305721 |
| 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