Quick answers
- Where does Leon Y. Cheng see patients?
- Medicare's clinician data lists 4 practice locations, including Santa Clara, CA, Sunnyvale, CA and Los Altos, CA. Call before your visit to confirm the address.
- What is Leon Y. Cheng's specialty?
- Medicare lists Family Practice as the primary specialty, and also Pediatric Medicine.
- Does Leon Y. Cheng accept Medicare assignment?
- Yes. Medicare's clinician data says Leon Y. Cheng 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.
- Does Leon Y. Cheng offer telehealth?
- Medicare's clinician data says Leon Y. Cheng offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Leon Y. Cheng?
- (800) 478-8837, as listed in official Medicare / NPI Registry data.
- What is Leon Y. Cheng's NPI number?
- 1104834407. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Leon Y. Cheng is enrolled with Medicare (CMS data updated 2026-10-02).
- 2441 Mission College BlvdSanta Clara, CA 95054 (800) 478‑8837
- 301 Old San Francisco RdSunnyvale, CA 94086 (408) 739‑6000
- 370 Distel CirLos Altos, CA 94022 (650) 254‑5200
- 701 E El Camino RealMountain View, CA 94040 (650) 691‑6174
Group practices
Medicare enrollment lists Leon Y. Cheng as a member of this group (CMS data updated 2026-10-02).
- Sutter Bay Medical Foundation3,829 clinicians in the group
Specialties
- Family Practiceprimary
- Pediatric Medicinealso
Other family doctors in Santa Clara
Clinicians with the same Medicare primary specialty in Santa Clara, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Davis School Of Medicine |
| Graduation year | 2000 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1104834407 |
| 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 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