Katherine Joy To'O, MD
Diagnostic Radiology · Stanford
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 12
- 1 carrier
- Office
- 1
Offices
1 location · Stanford Health Care · 3,152 clinicians in this group
Looking this up.
Plans that list them
12 plans · 1 carrier
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. To'O’s office at (650) 723-4000 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
| Alignment Health BreathEasy (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Clarity (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Harmony (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes CalPlus (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes Care (HMO C-SNP) | Alignment Health Plan | Listed | Sep 28, 2026 |
| Alignment Health Heart & Diabetes Choice (HMO C-SNP) | Alignment Health Plan | Listed | Sep 28, 2026 |
| Alignment Health Honor+ Plan (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health My Choice CalCare (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Silicon (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health smartHMO (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health the ONE (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
California Medical Board record
Licence A98082 · Current
Licensed to practise in California · since 2006 · expires 2028-10-31 · University of California, Los Angeles School of Medicine.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
Professional record
- NPI
- 1821128844
- Licence
- CA A98082California A98082: Current · expires 2028-10-31
- Group
- Stanford Health Care
- Gender
- Female
More record details
- Sole proprietor
- No
- Taxonomy
- Diagnostic radiology (2085R0202X); Federal specialty code 2085B0100X (2085B0100X)
- Mailing address
- 300 Pasteur Dr, Stanford, CA, 94305
- NPI first listed
- 2007-03-07
- NPI last updated
- 2025-12-11
- NPI record certified
- 2025-12-11
This is when the NPI record was last certified, not a medical board exam.