Quick answers
- Does Kevin Y. Wu accept Medicare assignment?
- Yes. Medicare's clinician data says Kevin Y. Wu 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 Kevin Y. Wu see?
- In 2024, CMS data shows 174 Original Medicare patients and 309 services for Kevin Y. Wu. This counts Original Medicare only and measures volume, not quality.
- What is Kevin Y. Wu's NPI number?
- 1396221172. 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 Kevin Y. Wu, 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 | 174 |
|---|---|
| Services billed to Medicare | 309 |
| Different services or procedures | 19 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient complete exam of visual system (92014)83 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)76 services
- Imaging of optic nerve (92133)28 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)21 services
- Imaging of retina (92134)19 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 cholesterol72%
- High blood pressure59%
- Arthritis30%
- Diabetes29%
- Ischemic heart disease18%
- Anxiety18%
Practice locations
Addresses where Kevin Y. Wu is enrolled with Medicare (CMS data updated October 2, 2026).
- 1010 W Fremont Ave, Suite 200Sunnyvale, CA 94087
- 1085 W El Camino RealSunnyvale, CA 94087 (408) 524‑5900
- 370 Distel CirLos Altos, CA 94022 (650) 254‑5200
Group practices
Medicare enrollment lists Kevin Y. Wu as a member of these groups (CMS data updated October 2, 2026).
- Sutter Bay Medical Foundation3,829 clinicians in the group
- Mendelson and Mark Optometric Corporation8 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Sunnyvale
Clinicians with the same Medicare primary specialty in Sunnyvale, CA — not a recommendation.
Other clinicians in Sutter Bay Medical Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Optometry school | University Of California - School Of Optometry |
| Graduation year | 2018 (8 years since optometry school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1396221172 |
| 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