Quick answers
- Does Cynthia H. Leung accept Medicare assignment?
- Yes. Medicare's clinician data says Cynthia H. Leung 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 Cynthia H. Leung see?
- In 2024, CMS data shows 28 Original Medicare patients and 869 services for Cynthia H. Leung. This counts Original Medicare only and measures volume, not quality.
- What is Cynthia H. Leung's NPI number?
- 1689110322. 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 Cynthia H. Leung, 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 | 28 |
|---|---|
| Services billed to Medicare | 869 |
| Different services or procedures | 3 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)461 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)390 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)18 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%
- Heart failure64%
- Chronic kidney disease61%
- Diabetes54%
- COPD54%
Practice locations
Addresses where Cynthia H. Leung is enrolled with Medicare (CMS data updated October 2, 2026).
- 13851 E 14th St, Suite 308San Leandro, CA 94578 (925) 463‑1318
Group practices
Medicare enrollment lists Cynthia H. Leung as a member of this group (CMS data updated October 2, 2026).
- Diablo Infectious Disease Consultative Service Med GRP Inc11 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in San Leandro
Clinicians with the same Medicare primary specialty in San Leandro, CA — not a recommendation.
Other clinicians in Diablo Infectious Disease Consultative Service Med GRP Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1689110322 |
| 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