Alexander Ringeisen, MD

Medicare activity in 2024

Official CMS public-use data for Alexander Ringeisen, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Chloroprocaine hcl ophthalmic, 3% gel, 1 mg (J2403)156,000 services
2. Injection, faricimab-svoa, 0.1 mg (J2777)30,960 services
3. Imaging of retina (92134)1,622 services
4. Injection of drug into eye (67028)977 services
5. Established patient complete exam of visual system (92014)559 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure75%
• High cholesterol69%
• Arthritis41%
• Diabetes34%
• Chronic kidney disease33%
• Ischemic heart disease27%

Hospitals where Alexander Ringeisen works

Medicare's Facility Affiliation Data lists Alexander Ringeisen at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Oakleaf Surgical HospitalAltoona, WI · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 520196

Practice locations

Addresses where Alexander Ringeisen is enrolled with Medicare (CMS data updated October 2, 2026).

• 1110 Oak Ridge DrEau Claire, WI 54701 (715) 834‑8471
• 2080 Woodwinds Dr, Suite 230Woodbury, MN 55125 (651) 578‑6949
• 310 8th Ave NW, Suite 507Aberdeen, SD 57401 (605) 226‑2108

Group practices

Medicare enrollment lists Alexander Ringeisen as a member of these groups (CMS data updated October 2, 2026).

• St Paul Eye Clinic PA20 clinicians in the group
• Chippewa Valley Eye Clinic Ltd9 clinicians in the group
• Ophthalmology Associates 0101964 clinicians in the group

Specialties

• Ophthalmologyprimary

Find other Ophthalmology doctors in Wisconsin →

Other ophthalmologists in Eau Claire

Clinicians with the same Medicare primary specialty in Eau Claire, WI — not a recommendation.

• Lee A. Hofer, MD
• Erik L. Grover, MD
• Sunday Olatunji, MD
• Matthew Cooke, MD
• Heidi L. Jarecki, MD
• Anna Bender, MD
• Sasha Mansukhani, MD
• Erika K. White, DO

All ophthalmologists in Eau Claire →

Other clinicians in St Paul Eye Clinic PA

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Susan J. Quick, MD
• Alan E. Hein, OD
• James E. George, MD
• Erik S. Bachmeier, OD
• Christopher D. Stefonowicz, MD
• Tracy W. Krick, MD

Clinician information

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 October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians