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 05, 2025
By Region
| Alabama | 4 | Alaska | 2 | Arizona | 20 |
| Arkansas | 5 | California | 91 | Colorado | 32 |
| Connecticut | 17 | Delaware | 2 | District of Columbia | 2 |
| Florida | 59 | Georgia | 36 | Hawaii | 1 |
| Idaho | 10 | Illinois | 35 | Indiana | 8 |
| Iowa | 9 | Kansas | 1 | Kentucky | 9 |
| Louisiana | 12 | Maine | 9 | Maryland | 17 |
| Massachusetts | 20 | Michigan | 25 | Minnesota | 10 |
| Mississippi | 1 | Missouri | 20 | Montana | 5 |
| Nebraska | 4 | Nevada | 8 | New Hampshire | 5 |
| New Jersey | 39 | New Mexico | 2 | New York | 79 |
| North Carolina | 47 | North Dakota | 2 | Ohio | 36 |
| Oklahoma | 5 | Oregon | 27 | Pennsylvania | 47 |
| Puerto Rico | 1 | Rhode Island | 1 | South Carolina | 9 |
| Tennessee | 13 | Texas | 75 | Utah | 4 |
| Vermont | 1 | Virginia | 31 | Washington | 31 |
| West Virginia | 1 | Wisconsin | 24 | Canada | 1 |