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Registry Statistics
Board Certified Specialist in Oncology Nutrition (CSO)
As of December 15, 2025
By Region
| Alabama | 4 | Alaska | 2 | Arizona | 22 |
| Arkansas | 8 | California | 99 | Colorado | 33 |
| Connecticut | 16 | Delaware | 2 | District of Columbia | 1 |
| Florida | 63 | Georgia | 37 | Hawaii | 1 |
| Idaho | 10 | Illinois | 37 | Indiana | 11 |
| Iowa | 9 | Kansas | 1 | Kentucky | 9 |
| Louisiana | 10 | Maine | 8 | Maryland | 17 |
| Massachusetts | 21 | Michigan | 25 | Minnesota | 10 |
| Mississippi | 1 | Missouri | 22 | Montana | 5 |
| Nebraska | 4 | Nevada | 7 | New Hampshire | 6 |
| New Jersey | 37 | New Mexico | 2 | New York | 78 |
| North Carolina | 46 | North Dakota | 2 | Ohio | 40 |
| Oklahoma | 3 | Oregon | 27 | Pennsylvania | 49 |
| Puerto Rico | 1 | Rhode Island | 2 | South Carolina | 10 |
| South Dakota | 1 | Tennessee | 16 | Texas | 71 |
| Utah | 6 | Vermont | 2 | Virginia | 31 |
| Washington | 30 | West Virginia | 1 | Wisconsin | 25 |
| Canada | 1 | Foreign | 1 |