CDR is currently closed in observance of the holiday. We will reopen and resume normal business hours on Tuesday, May 26th.
Registry Statistics
Board Certified Specialist in Oncology Nutrition (CSO)
As of May 11, 2026
By Region
| Alabama | 5 | Alaska | 2 | Arizona | 21 |
| Arkansas | 8 | California | 103 | Colorado | 32 |
| Connecticut | 16 | Delaware | 1 | District of Columbia | 1 |
| Florida | 63 | Georgia | 39 | Hawaii | 1 |
| Idaho | 9 | Illinois | 39 | Indiana | 10 |
| Iowa | 9 | Kentucky | 9 | Louisiana | 9 |
| Maine | 6 | Maryland | 18 | Massachusetts | 26 |
| Michigan | 25 | Minnesota | 12 | Mississippi | 1 |
| Missouri | 21 | Montana | 5 | Nebraska | 4 |
| Nevada | 7 | New Hampshire | 6 | New Jersey | 37 |
| New Mexico | 3 | New York | 78 | North Carolina | 45 |
| North Dakota | 1 | Ohio | 38 | Oklahoma | 3 |
| Oregon | 22 | Pennsylvania | 50 | Puerto Rico | 1 |
| Rhode Island | 2 | South Carolina | 9 | South Dakota | 1 |
| Tennessee | 15 | Texas | 72 | Utah | 5 |
| Vermont | 2 | Virginia | 31 | Washington | 30 |
| West Virginia | 1 | Wisconsin | 25 | Foreign | 1 |