Kei Cheung Ko, M.D.
NPI 1649582768ActiveIndividual· Emergency Medicine· Texarkana, TX
Emergency Medicine (M.D.) with Aspirus Rhinelander and Tomahawk Hospitals and Clinics, Inc. and 3 other groups, practicing in Texarkana, Texas. 276 Medicare patients in 2024, $30,346 paid; nearly all of their 194 Part D prescriptions were generic (93%). Lists Aspirus Eagle River Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1649582768 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 6, 2010 |
| Last updated in NPPES | Dec 15, 2023 |
| Certified by provider | Dec 15, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | T9153 | TX |
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 - Emergency Medicine (NJ); Practitioner - Emergency Medicine (NY); Practitioner - Emergency Medicine (TX); Practitioner - Emergency Medicine (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 276 |
|---|---|
| Services billed | 346 across 27 procedure codes |
| Paid by Medicare | $30,346 |
Part D prescriptions in 2024
| Prescriptions (claims) | 194 · 203 30-day fills |
|---|---|
| Patients | 137 |
| Total drug cost | $3,869 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Emergency Medicine |
Medical groups
- Aspirus Rhinelander and Tomahawk Hospitals and Clinics, Inc.Rhinelander, WI · 574 clinicians
- Howard Young Medical Center Inc of Woodruff WisconsinWoodruff, WI · 56 clinicians
- Aspirus Eagle River Hospital and Clinics, IncEagle River, WI · 34 clinicians
- Aspirus Merrill Hospital and Clinics IncMerrill, WI · 18 clinicians
Hospital affiliations
- Aspirus Eagle River HospitalEagle River, WI
- Aspirus Merrill HospitalMerrill, WI
- Aspirus Rhinelander HospitalRhinelander, WI
- Aspirus Tomahawk HospitalTomahawk, WI
- Howard Young Medical CenterWoodruff, WI
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 27 emergency medicine physicians in Texarkana · All emergency medicine physicians in Texas