CDR Holiday Closure - December 24 – January 4
For the Holidays, CDR is closed beginning Tuesday, December 23, 2025 at 3:00pm CST through Sunday, January 4, 2026 and reopens on Monday, January 5, 2026.
Registry Statistics
Board Certified Specialist in Oncology Nutrition (CSO)
As of May 22, 2023
By Region
| Alabama | 4 | Alaska | 1 | Arizona | 16 |
| Arkansas | 1 | California | 70 | Colorado | 28 |
| Connecticut | 19 | Delaware | 2 | District of Columbia | 1 |
| Florida | 52 | Georgia | 31 | Hawaii | 1 |
| Idaho | 10 | Illinois | 34 | Indiana | 13 |
| Iowa | 8 | Kansas | 4 | Kentucky | 11 |
| Louisiana | 8 | Maine | 5 | Maryland | 18 |
| Massachusetts | 15 | Michigan | 25 | Minnesota | 11 |
| Missouri | 19 | Montana | 6 | Nebraska | 4 |
| Nevada | 8 | New Hampshire | 4 | New Jersey | 35 |
| New Mexico | 2 | New York | 71 | North Carolina | 37 |
| North Dakota | 2 | Ohio | 27 | Oklahoma | 5 |
| Oregon | 25 | Pennsylvania | 41 | Puerto Rico | 1 |
| Rhode Island | 3 | South Carolina | 10 | Tennessee | 10 |
| Texas | 66 | Utah | 3 | Vermont | 1 |
| Virginia | 22 | Washington | 29 | West Virginia | 1 |
| Wisconsin | 23 | Canada | 2 |