Quick answers
- Which hospitals does Andrew J. Ridder work at?
- Medicare's official clinician data lists Andrew J. Ridder at 5 hospitals: Avera McKennan Hospital & University Health Center, Avera St Lukes, Lakes Regional Healthcare, Pipestone County Medical Center and Spencer Municipal Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Andrew J. Ridder see patients?
- Medicare's clinician data lists 1 practice location in Sioux Falls, SD. Call before your visit to confirm the address.
- What is Andrew J. Ridder's specialty?
- Medicare lists Neurology as the primary specialty.
- Does Andrew J. Ridder accept Medicare assignment?
- Yes. Medicare's clinician data says Andrew J. Ridder 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 Andrew J. Ridder offer telehealth?
- Medicare's clinician data says Andrew J. Ridder offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Andrew J. Ridder?
- (605) 322-8860, as listed in official Medicare / NPI Registry data.
- What is Andrew J. Ridder's NPI number?
- 1285993253. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Andrew J. Ridder works
Medicare's Facility Affiliation Data lists Andrew J. Ridder at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Avera McKennan Hospital & University Health CenterSioux Falls, SD · Acute Care Hospital · CCN 430016
- Avera St LukesAberdeen, SD · Acute Care Hospital · CCN 430014
- Lakes Regional HealthcareSpirit Lake, IA · Acute Care Hospital · CCN 160124
- Pipestone County Medical CenterPipestone, MN · Critical Access Hospital · CCN 241374
- Spencer Municipal HospitalSpencer, IA · Acute Care Hospital · CCN 160112
Practice locations
Addresses where Andrew J. Ridder is enrolled with Medicare (CMS data updated 2026-10-02).
- 1301 S Cliff Ave, Suite 610Sioux Falls, SD 57105 (605) 322‑8860
Group practices
Medicare enrollment lists Andrew J. Ridder as a member of this group (CMS data updated 2026-10-02).
- Avera McKennan959 clinicians in the group
Specialties
- Neurologyprimary
Other neurologists 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 | 2012 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1285993253 |
| 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