Charles Yin-Yat Lo, MD
NPI 1811978604ActiveIndividual· Surgery· San Francisco, CA
Surgery (MD) in San Francisco, California, licensed in CA, with an NPI issued in November 2005. In 2024 Medicare paid $45,608 for 124 patients, and Part D covered 254 of their prescriptions, 83% of them generic. Elucent Medical reported $19.86 in payments in 2025, mostly food and beverage. Lists Chinese Hospital as a hospital affiliation.
Overview
| NPI | 1811978604 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Nov 8, 2005 |
| Last updated in NPPES | Oct 29, 2024 |
| Certified by provider | Oct 29, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 00A519440 | 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 - General Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 124 |
|---|---|
| Services billed | 247 across 49 procedure codes |
| Paid by Medicare | $45,608 |
Part D prescriptions in 2024
| Prescriptions (claims) | 254 · 404 30-day fills |
|---|---|
| Patients | 121 |
| Total drug cost | $25,398 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 1967 |
|---|---|
| Medicare specialty | General Surgery |
Hospital affiliation
- Chinese HospitalSan Francisco, CA
Industry payments (Open Payments)
- 2025$19.86 · 1 payment from 1 company
- 2024$302.32 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Elucent Medical | $19.86 | 1 |
What the 2025 payments were for
- Food and Beverage$19.86 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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