Edward K. Ko, MD
NPI 1841364841ActiveIndividual· Internal Medicine· San Francisco, CA
Internal Medicine (MD) in San Francisco, California, trained at Harvard Medical School (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $1,246,229 for 7,256 claims, against $72,256 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 18 companies reporting payments in 2025, $3,113 in all, mostly food and beverage.
Overview
| NPI | 1841364841 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Nov 20, 2006 |
| Last updated in NPPES | Oct 13, 2020 |
| Certified by provider | Oct 13, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A61149 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 74 |
|---|---|
| Services billed | 781 across 21 procedure codes |
| Paid by Medicare | $72,256 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,256 · 18,603 30-day fills |
|---|---|
| Patients | 497 |
| Total drug cost | $1,246,229 |
| Generic share | 79% of claims |
Education and affiliations
| Medical school | Harvard Medical School |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Internal Medicine |
Hospital affiliation
- Chinese HospitalSan Francisco, CA
Other facilities
- Vital Home Health CareHome health agency · Hayward, CA
Industry payments (Open Payments)
- 2025$3,113 · 77 payments from 18 companies
- 2024$4,034 · 101 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $554.47 | 14 |
| Amgen Inc. | $351.17 | 9 |
| Gilead Sciences, Inc. | $327.70 | 6 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $200.13 | 9 |
| Novo Nordisk Inc | $191.62 | 5 |
What the 2025 payments were for
- Food and Beverage$3,113 · 77 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 1,457 internal medicine physicians in San Francisco · All internal medicine physicians in California