REFERRAL NETWORK
Where Yang Sun's patients come from & go
Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 10 inbound referrers · 0 outbound destinations.
Receives referrals from
Inbound — who sends patients here
| Physician | Patients | Visits |
|---|
| Shiu Kwok Ophthalmology · San Francisco, CA | 54 | 303 |
| Ervin Wong Ophthalmology · San Francisco, CA | 27 | 112 |
| LOW, RANDALL | 23 | 28 |
| Shu Wing Chan Internal Medicine · San Francisco, CA | 22 | 24 |
| Gustin Ho Internal Medicine · San Francisco, CA | 20 | 40 |
| Wenwu Jin Urology · San Francisco, CA | 19 | 78 |
| Chuk Kwan Internal Medicine · San Francisco, CA | 18 | 28 |
| Irwin Chow Anesthesiology · San Francisco, CA | 15 | 19 |
| Lai-Sung Leung Ophthalmology · San Francisco, CA | 13 | 31 |
| Edmund Tsoi General Surgery · San Francisco, CA | 12 | 45 |
Refers patients to
Outbound — where patients go next
No outbound pairs above the suppression threshold.
Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.