PROVIDER PROFILE · NPI 1386683423
Roger WillisM.D.
CROSS-REFERENCE
Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 23 inbound referrers · 81 outbound destinations.
| Physician | Patients | Visits |
|---|---|---|
| CHRISTUS SANTA ROSA HEALTH CARE CORPORATION | 437 | 1,037 |
| Sina Meisamy Diagnostic Radiology · Madison, WI | 105 | 172 |
| Jeffrey Walker Diagnostic Radiology · San Antonio, TX | 95 | 178 |
| Jason Cheng Diagnostic Radiology · San Antonio, TX | 94 | 179 |
| City Of San Antonio Texas Ambulance Service Provider · San Antonio, TX | 78 | 154 |
| METRO AMBULANCE, LP | 48 | 135 |
| Michael Glassinger Emergency Medicine · Mandeville, LA | 43 | 86 |
| Thomas Seale Interventional Radiology · Deland, FL | 38 | 69 |
| AMERICAN MEDICAL RESPONSE AMBULANCE SERVICE INC | 37 | 73 |
| Nancy Hadley Nurse Practitioner · San Antonio, TX | 37 | 66 |
| METHODIST HEALTHCARE SYSTEM OF SAN ANTONIO, LTD., L.L.P. | 35 | 98 |
| NPI 1164498226 | 33 | 49 |
| Physician | Patients | Visits |
|---|---|---|
| CHRISTUS SANTA ROSA HEALTH CARE CORPORATION | 174 | 389 |
| Ping-Sun Chen Diagnostic Radiology · San Antonio, TX | 89 | 144 |
| Venkat Ramana Reddy Diagnostic Radiology · Middletown, CT | 86 | 167 |
| Adi Klein Hospitalist · San Antonio, TX | 70 | 123 |
| AMERICAN MEDICAL RESPONSE AMBULANCE SERVICE INC | 70 | 140 |
| Jeffrey Walker Diagnostic Radiology · San Antonio, TX | 65 | 118 |
| Ray Altamirano Family Practice · San Antonio, TX | 64 | 131 |
| Carmen Emery Diagnostic Radiology · Las Vegas, NV | 61 | 104 |
| Sina Meisamy Diagnostic Radiology · Madison, WI | 61 | 107 |
| Patrick Marcin Diagnostic Radiology · Houston, TX | 58 | 122 |
| NPI 1164498226 | 52 | 89 |
| Pavithra Pattabiraman Internal Medicine · San Antonio, TX | 51 | 189 |