Margaret Lo, M.D.
NPI 1174653992ActiveIndividual· Family Medicine· Los Altos, CA
Family Medicine (M.D.) in Los Altos, California, trained at University of California, Davis School of Medicine (class of 2004). 111 Medicare patients in 2024, $22,665 paid; nearly all of their 644 Part D prescriptions were generic (93%).
Overview
| NPI | 1174653992 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 7, 2007 |
| Last updated in NPPES | May 27, 2020 |
| Certified by provider | May 27, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | A95854 | CA |
| Family Medicine, Sports Medicine | 207QS0010X | A95854 | 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 - Family Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 111 |
|---|---|
| Services billed | 229 across 18 procedure codes |
| Paid by Medicare | $22,665 |
Part D prescriptions in 2024
| Prescriptions (claims) | 644 · 1,538 30-day fills |
|---|---|
| Patients | 97 |
| Total drug cost | $22,607 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | University of California, Davis School of Medicine |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Sutter Bay Medical FoundationFremont, CA · 3,829 clinicians
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 26 family medicine physicians in Los Altos · All family medicine physicians in California