James Peng, M.D.
NPI 1780871780ActiveIndividual· Emergency Medicine· Chippewa Falls, WI
Emergency Medicine (M.D.) in Chippewa Falls, Wisconsin, trained at State University of New York Downstate Medical Center (class of 2006). 53 Medicare patients in 2024, $6,801 paid; nearly all of their 121 Part D prescriptions were generic (92%).
Overview
| NPI | 1780871780 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Oct 3, 2007 |
| Last updated in NPPES | Jul 22, 2022 |
| Certified by provider | Jul 22, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | 65480-20 | WI |
| Emergency Medicine | 207P00000X | 257256-1 | NY |
| Emergency Medicine | 207P00000X | A101720 | CA |
| Emergency Medicine | 207P00000X | 01083951A | IN |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Emergency Medicine (IN); Practitioner - Emergency Medicine (ND); Practitioner - Emergency Medicine (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 53 |
|---|---|
| Services billed | 80 across 8 procedure codes |
| Paid by Medicare | $6,801 |
Part D prescriptions in 2024
| Prescriptions (claims) | 121 · 122 30-day fills |
|---|---|
| Patients | 84 |
| Total drug cost | $2,549 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | State University of New York Downstate Medical Center |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Emergency Medicine |
Medical group
- Vituity-Wisconsin Em SCOconto Falls, WI · 56 clinicians
Hospital affiliations
- Chi St Alexius Health WillistonWilliston, ND
- Hshs St Clare Memorial HospitalOconto Falls, WI
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Emergency Medicine providers in Chippewa Falls
- 1750148771
- 1003042326
- 1811196637
- 1497732085