PROVIDER PROFILE · NPI 1417961061
William GrehanMD
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). 16 inbound referrers · 33 outbound destinations.
| Physician | Patients | Visits |
|---|---|---|
| LOYOLA UNIVERSITY MEDICAL CENTER | 67 | 109 |
| Aakash Ahuja Diagnostic Radiology · Melrose Park, IL | 46 | 67 |
| SUBLETTE, GERARD | 41 | 102 |
| Stephanie Rosania Diagnostic Radiology · Melrose Park, IL | 38 | 52 |
| ABEJO, RITA | 37 | 45 |
| Renata Sobey Certified Registered Nurse Anesthetist (CRNA) · Melrose Park, IL | 18 | 30 |
| BOBRA, SONIA | 18 | 26 |
| Lloyd Klein Interventional Cardiology · San Francisco, CA | 17 | 23 |
| Vijayalakshmi Ananthanarayanan Pathology · Maywood, IL | 16 | 18 |
| STANFORD, KIMBERLY | 15 | 15 |
| MANUEL CESAR IGLESIAS, M.D., S.C. | 14 | 14 |
| Joshua Dworetzky Hospitalist · Mchenry, IL | 13 | 23 |
| Physician | Patients | Visits |
|---|---|---|
| GOTTLIEB MEMORIAL HOSPITAL | 163 | 235 |
| Novamed Surgery Center Of Oak Lawn, Llc Ambulatory Surgical Center · Oak Lawn, IL | 81 | 124 |
| LOYOLA UNIVERSITY MEDICAL CENTER | 54 | 104 |
| Stephen Krates Ophthalmology · Palos Heights, IL | 45 | 68 |
| Dariusz Borys Pathology · Sacramento, CA | 34 | 36 |
| Suzanne Park Certified Registered Nurse Anesthetist (CRNA) · Melrose Park, IL | 26 | 28 |
| ABEJO, RITA | 26 | 49 |
| Superior Air-Ground Ambulance Service, Inc Ambulance Service Provider · Elmhurst, IL | 21 | 30 |
| NPI 1811900335 | 19 | 19 |
| Maria Picken Pathology · Maywood, IL | 19 | 20 |
| Petula Sharma Certified Registered Nurse Anesthetist (CRNA) · Westmont, IL | 18 | 18 |
| GOTTLIEB MEMORIAL HOSPITAL | 18 | 24 |