PROVIDER PROFILE · NPI 1508849001
Lisa GuirguisM.D.
REFERRAL NETWORK
Where Lisa Guirguis'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). 6 inbound referrers · 0 outbound destinations.
Receives referrals from
Inbound — who sends patients here
| Physician | Patients | Visits |
|---|---|---|
| John Lee Surgical Oncology · Sacramento, CA | 42 | 153 |
| VANDEWALKER, KRISTEN | 36 | 117 |
| Jamie Cassity Pathology · Austin, TX | 30 | 85 |
| Nitin Rohatgi Hematology · Sacramento, CA | 18 | 41 |
| Penny Vandestreek Nuclear Medicine · Roseville, CA | 13 | 40 |
| Susan Sompayrac Diagnostic Radiology · Sacramento, CA | 12 | 52 |
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.
CROSS-REFERENCE