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 November 20, 2023
By Region
| Alabama | 4 | Alaska | 1 | Arizona | 15 |
| Arkansas | 1 | California | 73 | Colorado | 31 |
| Connecticut | 18 | Delaware | 2 | District of Columbia | 2 |
| Florida | 51 | Georgia | 33 | Hawaii | 1 |
| Idaho | 10 | Illinois | 33 | Indiana | 12 |
| Iowa | 8 | Kansas | 2 | Kentucky | 11 |
| Louisiana | 9 | Maine | 6 | Maryland | 20 |
| Massachusetts | 13 | Michigan | 24 | Minnesota | 11 |
| Mississippi | 1 | Missouri | 21 | Montana | 6 |
| Nebraska | 5 | Nevada | 7 | New Hampshire | 4 |
| New Jersey | 33 | New Mexico | 2 | New York | 72 |
| North Carolina | 39 | North Dakota | 2 | Ohio | 27 |
| Oklahoma | 5 | Oregon | 26 | Pennsylvania | 44 |
| Puerto Rico | 1 | Rhode Island | 3 | South Carolina | 8 |
| Tennessee | 10 | Texas | 66 | Utah | 4 |
| Vermont | 1 | Virginia | 27 | Washington | 31 |
| Wisconsin | 20 | Canada | 1 |