Ying Cao, MD, PH.D
NPI 1326209438ActiveIndividual· Internal Medicine, Hematology & Oncology· Los Gatos, CA
Internal Medicine, Hematology & Oncology (MD, PH.D) with Sutter Bay Medical Foundation, practicing in Los Gatos, California. Their prescriptions cost Medicare Part D more than their services did: $474,183 for 2,025 claims, against $246,012 paid for services in 2024. Pfizer Inc. reported $30.65 in payments in 2025, mostly education. Lists Adventist Health Mendocino Coast and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1326209438 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, PH.D |
| Sole proprietor | No |
| NPI issued | Jun 20, 2008 |
| Last updated in NPPES | Dec 2, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A123342 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 757 |
|---|---|
| Services billed | 3,271 across 16 procedure codes |
| Paid by Medicare | $246,012 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,025 · 2,996 30-day fills |
|---|---|
| Patients | 355 |
| Total drug cost | $474,183 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Sutter Bay Medical FoundationFremont, CA · 3,829 clinicians
Hospital affiliations
- Adventist Health Mendocino CoastFort Bragg, CA
- California Pacific Medical Center- Van Ness CampusSan Francisco, CA
- Novato Community HospitalNovato, CA
- Sutter Lakeside HospitalLakeport, CA
- Sutter Santa Rosa Regional HospitalSanta Rosa, CA
Other facilities
- Sutter Care at HomeHome health agency · Santa Rosa, CA
Industry payments (Open Payments)
- 2025$30.65 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $30.65 | 1 |
What the 2025 payments were for
- Education$30.65 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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