Quick answers
- Does Stephane Leung Wai Sang accept Medicare assignment?
- Yes. Medicare's clinician data says Stephane Leung Wai Sang 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 Stephane Leung Wai Sang see?
- In 2024, CMS data shows 104 Original Medicare patients and 201 services for Stephane Leung Wai Sang. This counts Original Medicare only and measures volume, not quality.
- What is Stephane Leung Wai Sang's NPI number?
- 1366859985. 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 Stephane Leung Wai Sang, 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 | 104 |
|---|---|
| Services billed to Medicare | 201 |
| Different services or procedures | 33 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Replacement of aortic valve through the skin and femoral artery (33361)25 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)25 services
- New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)24 services
- X-ray of chest, 2 views (71046)15 services
- Placement and subsequent removal of device to protect brain from embolism through catheter using imaging guidance (33370)14 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 cholesterol75%
- Ischemic heart disease75%
- Heart failure75%
- Arthritis56%
- Chronic kidney disease52%
Hospitals where Stephane Leung Wai Sang works
Medicare's Facility Affiliation Data lists Stephane Leung Wai Sang 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.
- Bronson Battle Creek HospitalBattle Creek, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230075
- Corewell Health Gerber HospitalFremont, MI · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 231338
- Corewell Health Ludington HospitalLudington, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230110
- Spectrum HealthGrand Rapids, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230038
- Spectrum Health United HospitalGreenville, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 230035
Practice locations
Addresses where Stephane Leung Wai Sang is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 100 Michigan Ave NEGrand Rapids, MI 49503
- 100 Michigan St NE Rm, 280 Corewell Health Medical Group WestGrand Rapids, MI 49503 (616) 267‑0115
- 221 Michigan St NE, 300 Corewell Health Medical Group WestGrand Rapids, MI 49503 (616) 459‑7258
- 3152 Port Sheldon StHudsonville, MI 49426 (616) 494‑5830
- 3152 Port Sheldon St, Suite CHudsonville, MI 49426
Group practices
Medicare enrollment lists Stephane Leung Wai Sang as a member of this group (CMS data updated October 2, 2026).
- Spectrum Health Primary Care Partners2,294 clinicians in the group
Specialties
- Cardiac Surgeryprimary
Other cardiac surgeons in Michigan
Clinicians with the same Medicare primary specialty in Michigan — not a recommendation.
Other clinicians in Spectrum Health Primary Care Partners
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2008 (18 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1366859985 |
| 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