Yumi Koh, DO, MPH
NPI 1245488642ActiveIndividual· Internal Medicine· Norwalk, CT
Internal Medicine (DO, MPH) in Norwalk, Connecticut, trained at New York College of Osteo Medicine of New York Institute of Technology (class of 2008). Their prescriptions cost Medicare Part D more than their services did: $103,778 for 1,756 claims, against $8,053 paid for services in 2024. Exact Sciences Corporation reported $24.01 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1245488642 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO, MPH |
| Sole proprietor | No |
| NPI issued | Aug 28, 2008 |
| Last updated in NPPES | Oct 16, 2026 |
| Certified by provider | Oct 16, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 050890 | CT |
| Preventive Medicine, Public Health & General Preventive Medicine | 2083P0901X | 050890 | CT |
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 (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 62 |
|---|---|
| Services billed | 105 across 16 procedure codes |
| Paid by Medicare | $8,053 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,756 · 2,975 30-day fills |
|---|---|
| Patients | 224 |
| Total drug cost | $103,778 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | New York College of Osteo Medicine of New York Institute of Technology |
|---|---|
| Graduation year | 2008 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Nuvance Health Medical Practice CT IncDanbury, CT · 747 clinicians
Hospital affiliations
- Danbury HospitalDanbury, CT
- Norwalk HospitalNorwalk, CT
Other facilities
- Western Connecticut Home Care IncHome health agency · Danbury, CT
Industry payments (Open Payments)
- 2024$24.01 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $24.01 | 1 |
What the 2024 payments were for
- Food and Beverage$24.01 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 92 internal medicine physicians in Norwalk · All internal medicine physicians in Connecticut