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Ophthalmology

Ryan L. Geraets, MD

Works at hospitals in Sioux Falls, SD · South Dakota

Summary

Ryan L. Geraets, MD (Ophthalmology) is listed by Medicare at 1 hospital in Sioux Falls, SD. NPI 1154441608. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Ryan L. Geraets, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

OphthalmologyPrimary specialty
YesAccepts Medicare assignment
22Years since medical school (graduated 2004)
Sanford School Of Medicine Of University Of South DakotaMedical school
MaleGender (as listed)
Ophthalmology LtdGroup practice

Quick answers

Which hospitals does Ryan L. Geraets work at?
Medicare's official clinician data lists Ryan L. Geraets at 1 hospital: Avera McKennan Hospital & University Health Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Ryan L. Geraets see patients?
Medicare's clinician data lists 4 practice locations, including Mitchell, SD, Sioux Falls, SD and Watertown, SD. Call before your visit to confirm the address.
What is Ryan L. Geraets's specialty?
Medicare lists Ophthalmology as the primary specialty.
Does Ryan L. Geraets accept Medicare assignment?
Yes. Medicare's clinician data says Ryan L. Geraets 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 Ryan L. Geraets?
(605) 336-6294, as listed in official Medicare / NPI Registry data.
What is Ryan L. Geraets's NPI number?
1154441608. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Ryan L. Geraets works

Medicare's Facility Affiliation Data lists Ryan L. Geraets at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Ryan L. Geraets is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Ryan L. Geraets as a member of this group (CMS data updated 2026-10-02).

  • Ophthalmology Ltd12 clinicians in the group

Specialties

Find other Ophthalmology doctors in South Dakota →

Other ophthalmologists in Mitchell

Clinicians with the same Medicare primary specialty in Mitchell, SD — not a recommendation.

All ophthalmologists in Mitchell →

Clinician information

CredentialMD
Medical schoolSanford School Of Medicine Of University Of South Dakota
Graduation year2004
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1154441608
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians