Colonoscopy (diagnostic) · Washington
Colonoscopy (diagnostic) in Washington: the highest-volume physicians
84 physicians in Washington billed Medicare for 1,546 colonoscopy (diagnostic) procedures in 2024. The top 26, with the year before beside it.
Top 26
| Rank | Physician | 2024 | 2023 | Change |
|---|---|---|---|---|
| 1 | Colin E. Wolslegel, DOGastroenterology · Port Angeles | 70 | 64 | +9% |
| 2 | Richard S. Elloway, MDGastroenterology · Olympia | 46 | 49 | −6% |
| 3 | Ehsaan Akhtar, MDGastroenterology · Kirkland | 35 | 49 | −29% |
| 4 | Robert D. Lawson, MDGastroenterology · Spokane | 34 | 37 | −8% |
| 5 | Nazar Hafiz, MDGastroenterology · Richland | 32 | 16 | |
| 5 | David B. Liang, MDGastroenterology · Edmonds | 32 | 30 | +7% |
| 7 | Ajay Pabby, MDGastroenterology · Spokane | 30 | 30 | +0% |
| 8 | Rodney W. Joe, MDGastroenterology · Olympia | 28 | 23 | +22% |
| 8 | Peter D. Maher, MDGastroenterology · Richland | 28 | 17 | |
| 10 | George R. Winters, MDGastroenterology · Bellevue | 27 | 28 | −4% |
| 10 | David B. Bayne, MDGastroenterology · Port Angeles | 27 | 23 | +17% |
| 10 | Son T. Do, MDGastroenterology · Vancouver | 27 | 13 | |
| 10 | Siew M. Wong, MDGastroenterology · Kennewick | 27 | 13 | |
| 14 | Randy J. Geldmacher, MDGastroenterology · Richland | 26 | 41 | −37% |
| 15 | Justin Cochrane, DOGastroenterology · Pullman | 24 | 21 | +14% |
| 16 | Gonzalo Pandolfi, MDGastroenterology · Yakima | 23 | 16 | |
| 16 | Samit K. Datta, MDGastroenterology · Mount Vernon | 23 | 13 | |
| 18 | Luay D. Ailabouni, MDColorectal Surgery (Proctology) · Richland | 22 | 16 | |
| 18 | William H. Holderman, MDGastroenterology · Tacoma | 22 | 18 | |
| 18 | Owen E. BaldwinGastroenterology · Wenatchee | 22 | — | |
| 21 | Sowmya Palam, MDGastroenterology · Wenatchee | 21 | — | |
| 21 | Ningxin Zeng, MDGastroenterology · Kennewick | 21 | 25 | −16% |
| 21 | Todd R. La Rock, DOInternal Medicine · Wenatchee | 21 | 12 | |
| 24 | Michael H. Lee, MDGastroenterology · Tacoma | 20 | 19 | |
| 24 | Christopher N. Petty, MDGeneral Surgery · Puyallup | 20 | 14 | |
| 24 | Harald L. Schoeppner, MDGastroenterology · Tacoma | 20 | 19 |
A rank counts procedures billed under the physician's own NPI (CPT 45378), in 2024, Medicare fee-for-service only. A surgeon who mostly treats younger or Medicare Advantage patients will rank lower than their total volume. Method and limits.