Quick answers
- Does Yun-Sen R. Chu accept Medicare assignment?
- Yes. Medicare's clinician data says Yun-Sen R. Chu 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 Yun-Sen R. Chu see?
- In 2024, CMS data shows 339 Original Medicare patients and 855 services for Yun-Sen R. Chu. This counts Original Medicare only and measures volume, not quality.
- What is Yun-Sen R. Chu's NPI number?
- 1659367423. 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 Yun-Sen R. Chu, 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 | 339 |
|---|---|
| Services billed to Medicare | 855 |
| Different services or procedures | 17 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Removal of cataract with insertion of prosthetic lens (66984)403 services
- Measurement of corneal curvature and depth of eye (92136)212 services
- Removal of recurring cataract in lens capsule using a laser (66821)168 services
- Extracapsular removal of cataract with insertion of artificial lens and insertion of drainage device in front chamber of eye (66991)31 services
- Complex removal of cataract with insertion of prosthetic lens (66982)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 cholesterol71%
- High blood pressure68%
- Arthritis40%
- Diabetes22%
- Ischemic heart disease20%
- Depression18%
Practice locations
Addresses where Yun-Sen R. Chu is enrolled with Medicare (CMS data updated October 2, 2026).
- 9117 Lyndale Ave SBloomington, MN 55420 (952) 835‑1235
Group practices
Medicare enrollment lists Yun-Sen R. Chu as a member of this group (CMS data updated October 2, 2026).
- Chu Laser Eye Institute, PA7 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Bloomington
Clinicians with the same Medicare primary specialty in Bloomington, MN — not a recommendation.
Other clinicians in Chu Laser Eye Institute, PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Northwestern University Feinberg Medical School |
| Graduation year | 1992 (34 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1659367423 |
| 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
- 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