Ernest Lo, MD
NPI 1538482328ActiveIndividual· Internal Medicine, Hematology & Oncology· Cameron Park, CA
Internal Medicine, Hematology & Oncology (MD) in Cameron Park, California, trained at University of California, Davis School of Medicine (class of 2007). In 2024 Medicare paid $414,643 for 173 patients, and Part D covered 186 of their prescriptions, 62% of them generic. Celgene Corporation was the largest of 32 companies reporting payments in 2025, $1,838 in all, mostly food and beverage.
Overview
| NPI | 1538482328 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 8, 2010 |
| Last updated in NPPES | Feb 27, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A106446 | CA |
| Internal Medicine | 207R00000X | A106446 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 173 |
|---|---|
| Services billed | 24,379 across 64 procedure codes |
| Paid by Medicare | $414,643 |
Part D prescriptions in 2024
| Prescriptions (claims) | 186 · 334 30-day fills |
|---|---|
| Patients | 50 |
| Total drug cost | $318,242 |
| Generic share | 62% of claims |
Education and affiliations
| Medical school | University of California, Davis School of Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Epic CareWalnut Creek, CA · 55 clinicians
Hospital affiliations
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
Industry payments (Open Payments)
- 2025$1,838 · 72 payments from 32 companies
- 2024$1,941 · 85 payments from 28 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Celgene Corporation | $163.75 | 7 |
| Astrazeneca Pharmaceuticals LP | $141.88 | 7 |
| Janssen Biotech, Inc. | $133.83 | 5 |
| Astellas Pharma US Inc | $115.59 | 4 |
| E.R. Squibb & Sons, L.L.C. | $100.20 | 4 |
What the 2025 payments were for
- Food and Beverage$1,838 · 72 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Hematology & Oncology providers in Cameron Park
- 1841361045
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- 1326202540
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All Internal Medicine, Hematology & Oncology providers in California →