USIDNET was previously funded to support a registry with manually entered patient information (USIDNET V1).
Below you can find the list of those sites and number of patients contributed from each site.
| Site | Number of Patients |
|---|---|
| IDF (Legacy) | 1303 |
| NIH NHGRI | 690 |
| Children’s Hospital of Philadelphia | 551 |
| USIDNET | 546 |
| Mt. Sinai | 243 |
| Levine Children's Hospital | 187 |
| Duke Medical Center | 154 |
| Cincinnati Children's Hospital Medical Center | 140 |
| University of California San Francisco (UCSF) | 140 |
| Daniel Suez MD AAIC PA | 130 |
| Children’s Hospital of Michigan | 126 |
| Mayo Clinic | 111 |
| Advocate Hope Children's Hospital | 109 |
| Children's Hospital, Boston | 99 |
| Medical College of Wisconsin | 91 |
| Midwest Immunology Clinic | 71 |
| Children's National | 66 |
| Memorial Healthcare Systems | 66 |
| Seattle Children's Hospital | 55 |
| University of Utah | 50 |
| Washington University | 50 |
| Children's Hospital Minnesota | 49 |
| CHU Sainte-Justine | 48 |
| Univ. of Iowa Hospital | 40 |
| University of Michigan Health System | 31 |
| Ann and Robert H. Lurie Children’s Hospital Chicago | 28 |
| Spectrum Health | 27 |
| Massachusetts General Hospital | 24 |
| UCLA Medical Center--LA | 23 |
| University of Florida | 23 |
| Clinical Research Center, NIH | 19 |
| Miami Children's Hospital | 18 |
| Cleveland Clinic Foundation | 17 |
| Women and Children’s Hospital of Buffalo | 14 |
| Allergy Assoc. of the Palm Beaches | 9 |
| Children's Hospital of Orange County | 9 |
| Hackensack UMC | 9 |
| Connecticut Children's Medical Center | 8 |
| Children's Hospital Los Angeles | 7 |
| University Hospital & Clinic | 7 |
| Altru Health System | 6 |
| Medical College of Georgia | 6 |
| Robert Wood Johnson Med School | 6 |
| Allergy Partners of North Texas | 5 |
| National Jewish Center | 4 |
| Stony Brook Children's Hospital | 4 |
| Yale U. School of Med. | 4 |
| Alabama Allergy and Asthma Center | 3 |
| Emory Children's Center | 3 |
| Howard Hughes Med. Institute | 3 |
| Oregon Health Sciences U. | 3 |
| Texas Children’s Hospital | 3 |
| UPMC Children's Hospital of Pittsburgh | 3 |
| Center for Allergy, Asthma & Immunology | 2 |
| Center for Blood Research | 2 |
| University of Maryland | 2 |
| University of Wisconsin-Madison | 2 |
| University Suburban Health Center | 2 |
| Vanderbilt Univ. Med Center | 2 |
| Wake Forest University | 2 |
| Allergy Asthma & Clinical | 1 |
| Allergy, Asthma & Imm. Associates | 1 |
| Allergy, Asthma & Sinus Center | 1 |
| Baylor College of Medicine | 1 |
| CentraCare Women & Children | 1 |
| Children's Hospital Central California | 1 |
| Coast Allergy Asthma Center | 1 |
| Columbia-Presbyterian Med Center | 1 |
| Harrisonburg Medical Associates | 1 |
| Howard University Hospital | 1 |
| Institute for Asthma & Allergy | 1 |
| Johns Hopkins Children’s Center | 1 |
| Littlestown Family Medicine | 1 |
| Logan Regional Hospital | 1 |
| Lucile Packard Children's Hospital | 1 |
| Medical College of Ohio | 1 |
| Midland Allergy Clinic | 1 |
| Nationwide Children's Hospital | 1 |
| Northshore Allergy & Immunology | 1 |
| Olmsted Medical Group | 1 |
| Oncology Hematology Associates | 1 |
| Presbyterian Med. Center | 1 |
| St. Louis Children’s Hospital | 1 |
| Univ. of CO Health Science Ctr | 1 |
| Univ. of Nebraska Med Ctr | 1 |
| Univ. of Texas--SW Medical Center | 1 |
| University of Alabama | 1 |
| University of South Florida | 1 |
| Vanderbilt ASAD | 1 |
| Grand Total | 5484 |