Christopher J. Ko, M.D.
NPI 1255364105ActiveIndividual· Internal Medicine· Vienna, VA
Internal Medicine (M.D.) in Vienna, Virginia, trained at Northwestern University Feinberg Medical School (class of 2003). Part D covered 133 prescriptions written in 2024, 96% of them generic.
Overview
| NPI | 1255364105 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 7, 2006 |
| Last updated in NPPES | Sep 8, 2023 |
| Certified by provider | Sep 8, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 0101256632 | VA |
| Internal Medicine | 207R00000X | 25MA08039300 | NJ |
| Internal Medicine | 207R00000X | D0071763 | MD |
| Family Medicine | 207Q00000X | 0101256632 | VA |
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 (DC); Practitioner - Internal Medicine (VA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 133 · 211 30-day fills |
|---|---|
| Patients | 39 |
| Total drug cost | $3,015 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | Northwestern University Feinberg Medical School |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
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 61 internal medicine physicians in Vienna · All internal medicine physicians in Virginia