Highest-Volume Sacral Neuromodulation Lead Placement Surgeons in Colorado (2026 update)
10 Colorado providers billed Medicare for Sacral Neuromodulation Lead Placement (CPT 64561) in 2024. The top 10 by case volume are below — the full ranked list, CSV export and competitor-payment intel are available with a DocVol subscription ($199/mo, cancel anytime).
Database refreshed July 2026Live NPPES registryⓘ sources
| # | Surgeon | Location | Medicare cases (2024) |
|---|---|---|---|
| 1 | Richard Walsh, MD | Colorado Springs, CO | 58 |
| 2 | Terry Dunn, MD | Denver, CO | 48 |
| 3 | Madeline Koerner, MD | Superior, CO | 35 |
| 4 | Nancy Huff, M.D. | Parker, CO | 31 |
| 5 | Benjamin Girdler, M.D. | Fort Collins, CO | 29 |
| 6 | Oscar Aguirre, M.D. | Parker, CO | 27 |
| 7 | Michael Tonzi, MD | Montrose, CO | 23 |
| 8 | John Crane, MD | Loveland, CO | 21 |
| 9 | Eric Richter, MD | Pueblo, CO | 21 |
| 10 | Nicholas Westfall, M.D. | Grand Junction, CO | 16 |
Frequently asked questions
- How many surgeons perform Sacral Neuromodulation Lead Placement in Colorado?
- 10 Colorado providers billed Medicare for Sacral Neuromodulation Lead Placement (CPT 64561) in CY2024. CMS suppresses providers with 10 or fewer Medicare patients, so the true count is somewhat higher.
- Where does this data come from?
- CMS Medicare Physician & Other Practitioners (fee-for-service Part B claims, CY2024, released May 2026) and CMS Open Payments. Both are official U.S. federal datasets.
- Does this include all of a surgeon's cases?
- No — it covers traditional Medicare only (no Medicare Advantage, commercial, or Medicaid claims). Absolute volumes undercount total practice, but the ranking of high- vs low-volume surgeons is a strong targeting signal.