PROVIDER PROFILE · NPI 1063401081
Darwin GramstadCRNA
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). 8 inbound referrers · 14 outbound destinations.
| Physician | Patients | Visits |
|---|---|---|
| Gregory Osmundson Ophthalmology · Sioux Falls, SD | 37 | 76 |
| David West Ophthalmology · Sioux Falls, SD | 35 | 127 |
| Ryan Geraets Ophthalmology · Sioux Falls, SD | 29 | 39 |
| Jonathan Erickson Ophthalmology · Red Wing, MN | 23 | 41 |
| SANFORD HEALTH NETWORK | 15 | 24 |
| SIOUX CENTER HEALTH | 14 | 25 |
| HEART HOSPITAL OF SOUTH DAKOTA LLC | 14 | 16 |
| CITY OF BROOKINGS | 11 | 15 |
| Physician | Patients | Visits |
|---|---|---|
| Ophthalmology Ltd Eye Surgery Center L L C Ambulatory Surgical Center · Sioux Falls, SD | 506 | 714 |
| Bryan Hammer Ophthalmology · Sioux Falls, SD | 106 | 222 |
| Gregory Osmundson Ophthalmology · Sioux Falls, SD | 88 | 213 |
| SANFORD MEDICAL CENTER | 80 | 150 |
| Dustin Dierks Ophthalmology · Sioux Falls, SD | 75 | 213 |
| Michael Eide Ophthalmology · Sioux Falls, SD | 74 | 156 |
| Jonathan Erickson Ophthalmology · Red Wing, MN | 59 | 133 |
| AVERA MCKENNAN | 56 | 98 |
| Timothy Masselink Certified Registered Nurse Anesthetist (CRNA) · Sioux Falls, SD | 43 | 44 |
| Eric Thomas Ophthalmology · Sioux Falls, SD | 43 | 50 |
| Ryan Geraets Ophthalmology · Sioux Falls, SD | 37 | 54 |
| David West Ophthalmology · Sioux Falls, SD | 17 | 37 |