Esther Kim Choo, MD
NPI 1598746166ActiveIndividual· Emergency Medicine· Portland, OR
Emergency Medicine (MD) in Portland, Oregon, trained at Yale University School of Medicine (class of 2001). Mostly services rather than prescriptions: Medicare paid $13,598 for 113 patients in 2024, with only 39 Part D claims. Radiometer America, Inc reported $4,835 in payments in 2025, mostly consulting fees.
Overview
| NPI | 1598746166 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 9, 2005 |
| Last updated in NPPES | Mar 16, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | MD174958 | OR |
| Emergency Medicine | 207P00000X | 043210 | CT |
| Emergency Medicine | 207P00000X | A94742 | CA |
| Emergency Medicine | 207P00000X | MD27459 | OR |
| Emergency Medicine | 207P00000X | MD13108 | RI |
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 (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 113 |
|---|---|
| Services billed | 119 across 9 procedure codes |
| Paid by Medicare | $13,598 |
Part D prescriptions in 2024
| Prescriptions (claims) | 39 · 41 30-day fills |
|---|---|
| Patients | 25 |
| Total drug cost | $722.02 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Yale University School of Medicine |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Emergency Medicine |
Medical group
- University Professional ServicesBeaverton, OR · 1,724 clinicians
Hospital affiliation
- Ohsu Hospital and ClinicsPortland, OR
Industry payments (Open Payments)
- 2025$4,835 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Radiometer America, Inc | $4,835 | 1 |
What the 2025 payments were for
- Consulting Fee$4,835 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 338 emergency medicine physicians in Portland · All emergency medicine physicians in Oregon