Quick answers
- Which hospitals does Walter G. Kao work at?
- Medicare's official clinician data lists Walter G. Kao at 5 hospitals: Aspirus Divine Savior Hospital, Aspirus Rhinelander Hospital, Aspirus Riverview Hospital & Clinics Inc, Aspirus Stevens Point Hospital & Clinics, Inc. and Aspirus Wausau Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Walter G. Kao see patients?
- Medicare's clinician data lists 6 practice locations, including Rhinelander, WI, Portage, WI and Stevens Point, WI. Call before your visit to confirm the address.
- What is Walter G. Kao's specialty?
- Medicare lists Advanced Heart Failure and Transplant Cardiology as the primary specialty.
- Does Walter G. Kao accept Medicare assignment?
- Yes. Medicare's clinician data says Walter G. Kao 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 Walter G. Kao?
- (715) 361-5482, as listed in official Medicare / NPI Registry data.
- What is Walter G. Kao's NPI number?
- 1457328940. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Walter G. Kao works
Medicare's Facility Affiliation Data lists Walter G. Kao at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Aspirus Divine Savior HospitalPortage, WI · Acute Care Hospital · CCN 520041
- Aspirus Rhinelander HospitalRhinelander, WI · Acute Care Hospital · CCN 520019
- Aspirus Riverview Hospital & Clinics IncWisconsin Rapids, WI · Acute Care Hospital · CCN 520033
- Aspirus Stevens Point Hospital & Clinics, Inc.Stevens Point, WI · Acute Care Hospital · CCN 520002
- Aspirus Wausau HospitalWausau, WI · Acute Care Hospital · CCN 520030
Practice locations
Addresses where Walter G. Kao is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 2251 N Shore DrRhinelander, WI 54501
- 2251 N Shore Dr, Suite 100Rhinelander, WI 54501
- 2275 N Shore DrRhinelander, WI 54501 (715) 361‑5482
- 2817 New Pinery RdPortage, WI 53901 (715) 847‑2812
- 824 Illinois AveStevens Point, WI 54481 (715) 344‑1600
Group practices
Medicare enrollment lists Walter G. Kao as a member of these groups (CMS data updated 2026-10-02).
- Aspirus Rhinelander and Tomahawk Hospitals and Clinics, Inc.574 clinicians in the group
- Aspirus Medical Group, Inc.268 clinicians in the group
- Divine Savior Healthcare Inc141 clinicians in the group
Specialties
Find other Advanced Heart Failure and Transplant Cardiology doctors in Wisconsin →
Other heart failure and transplant cardiologists in Wisconsin
Clinicians with the same Medicare primary specialty in Wisconsin — not a recommendation.
- Evgenia Raichlin, MD
- Allison Zimmerman, MD
- Jacob Luthman, PA
- Farhan Raza, MD
- David R. Murray, MD
- Nasir Z. Sulemanjee, MD
- Eric G. Roberts, MD
- Maryl R. Johnson, MD
All heart failure and transplant cardiologists in Wisconsin →
Clinician information
| Credential | MD |
|---|---|
| Medical school | Js Weill Medical College, Cornell University |
| Graduation year | 1984 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1457328940 |
| 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