UCSD Patient Accounts Receivable W-9s
Last Updated: May 26, 2026 3:17:42 PM PDT
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See a list of UCSD departmental ID numbers for patient billing.
For almost all purposes, use the UCSD Campus ID Number: 95-6006144 (PDF). However, for certain Patient Accounts Receivable, you will need to select from the list of UCSD departmental ID numbers below.
Note: Each ID number links to a PDF file.
| UCSD department (Use ID numbers for patient billing only.) |
ID number |
|---|---|
| UCSD Department of Radiology | 20-5892682 (PDF) |
| UCSD Medical Group | 23-7064656 (PDF) |
| UCSD Radiation Oncology | 26-0622624 (PDF) |
| UCSD Cancer Center | 27-4440873 (PDF) |
| UCSD Radiology Neuro Interventional Services | 30-0561639 (PDF) |
| UCSD Physician Associates | 30-0634090 (PDF) |
| Eating Disorder and Research Center | 32-0230033 (PDF) |
| UCSD Orthopedics/ Clinic & Surgery | 33-0541970 (PDF) |
| UCSD Pediatric Associates | 33-0541971 (PDF) |
| UCSD Surgery/ Trauma/ Burn | 33-0558502 (PDF) |
| UCSD Vascular Lab | 33-0569271 (PDF) |
| UCSD Head and Neck Surgery | 33-0571597 (PDF) |
| UCSD Med-Cytogenetics | 33-0578054 (PDF) |
| UCSD Medical Center | 33-0599494 (PDF) |
| UCSD Opthalmology/ Shiley Optical | 33-0623242 (PDF) |
| UCSD PED/ Cystine Determination Lab | 33-0646799 (PDF) |
| UCSD Core Cell Culture Facility | 33-0646800 (PDF) |
| California Tay-Sachs Program | 33-0685903 (PDF) |
| UCSD Emergency Physicians | 33-0702174 (PDF) |
| Hartson Medical Service — Laidlaw | 33-0724270 (PDF) |
| UCSD Senior Health Plan (Managed Care) | 33-0768059 (PDF) |
| UCSD Dialysis Center | 33-0768277 (PDF) |
| UCSD Biochemical Genetics | 33-0833316 (PDF) |
| UCSD Neuroscience Labs | 33-0838878 (PDF) |
| UCSD Neurosurgery | 33-0915278 (PDF) |
| UCSD Student Health Service | 35-2406380 (PDF) |
| UCSD Radiation Oncology South Bay | 80-0519972 (PDF) |
Find answers, request services, or get help from our team at the UC San Diego Services & Support portal.