Quick answers
- Does Alex Suginaka accept Medicare assignment?
- Yes. Medicare's clinician data says Alex Suginaka accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Alex Suginaka see?
- In 2024, CMS data shows 175 Original Medicare patients and 247 services for Alex Suginaka. This counts Original Medicare only and measures volume, not quality.
- What is Alex Suginaka's NPI number?
- 1629496112. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Alex Suginaka, 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.
| Original Medicare patients | 175 |
|---|---|
| Services billed to Medicare | 247 |
| Different services or procedures | 65 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Ultrasonic guidance for blood vessel access (76937)31 services
- Insertion of artery tube for blood sampling or infusion through skin (36620)28 services
- Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)20 services
- Anesthesia for other procedure on large bowel using an endoscope (00811)11 services
- Anesthesia for other procedure on urinary system through urethra (00910)11 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 pressure74%
- High cholesterol73%
- Arthritis47%
- Chronic kidney disease37%
- Ischemic heart disease35%
- Atrial fibrillation31%
Hospitals where Alex Suginaka works
Medicare's Facility Affiliation Data lists Alex Suginaka 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.
- Aspirus Rhinelander HospitalRhinelander, WI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 520019
- Aspirus Riverview Hospital & Clinics IncWisconsin Rapids, WI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 520033
- Aspirus Wausau HospitalWausau, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520030
Practice locations
Addresses where Alex Suginaka is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.
- 1221 Whipple StEau Claire, WI 54703 (715) 838‑3806
- 2251 N Shore DrRhinelander, WI 54501 (715) 361‑2000
- 401 W Mohawk DrTomahawk, WI 54487 (715) 453‑7200
- 410 Dewey StWisconsin Rapids, WI 54494 (715) 423‑6060
- 420 Dewey StWisconsin Rapids, WI 54494 (715) 422‑7750
Group practices
Medicare enrollment lists Alex Suginaka as a member of these groups (CMS data updated October 2, 2026).
- Mayo Clinic Health System-Northwest Wisconsin Region Inc802 clinicians in the group
- Aspirus Rhinelander and Tomahawk Hospitals and Clinics, Inc.574 clinicians in the group
- Aspirus Riverview Hospital and Clinics Inc172 clinicians in the group
- Central Wisconsin Anesthesiology57 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Eau Claire
Clinicians with the same Medicare primary specialty in Eau Claire, WI — not a recommendation.
Other clinicians in Mayo Clinic Health System-Northwest Wisconsin Region Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2010 (16 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1629496112 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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