Charles Yi
NPI 1407506744ActiveIndividual· Internal Medicine· South Bend, IN
Internal Medicine with USA Health Physician Billing Services LLC and 4 other groups, practicing in South Bend, Indiana. Their prescriptions cost Medicare Part D more than their services did: $25,225 for 259 claims, against $5,052 paid for services in 2024. Actelion Pharmaceuticals US, Inc. was the largest of 7 companies reporting payments in 2025, $320.93 in all, mostly food and beverage. Lists Springhill Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1407506744 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Mar 28, 2022 |
| Last updated in NPPES | Aug 31, 2026 |
| Certified by provider | Aug 31, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 01100618A | IN |
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 (AL); Practitioner - Internal Medicine (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 40 |
|---|---|
| Services billed | 149 across 25 procedure codes |
| Paid by Medicare | $5,052 |
Part D prescriptions in 2024
| Prescriptions (claims) | 259 · 426 30-day fills |
|---|---|
| Patients | 90 |
| Total drug cost | $25,225 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 2022 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical groups
- USA Health Physician Billing Services LLCMobile, AL · 339 clinicians
- Greater Mobile Urgent CareMobile, AL · 53 clinicians
- Gmuc of SaralandSaraland, AL · 39 clinicians
- Gmuc of Springhill LLCMobile, AL · 35 clinicians
- Inpatient Consultants of Alabama, IncMobile, AL · 18 clinicians
Hospital affiliations
- Springhill Medical CenterMobile, AL
- USA Health University HospitalMobile, AL
Industry payments (Open Payments)
- 2025$320.93 · 15 payments from 7 companies
- 2024$955.07 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Actelion Pharmaceuticals US, Inc. | $98.18 | 4 |
| Merck Sharp & Dohme LLC | $67.60 | 3 |
| Mallinckrodt Hospital Products Inc. | $48.03 | 2 |
| Regeneron Healthcare Solutions, Inc. | $44.47 | 2 |
| Abiomed | $31.35 | 1 |
What the 2025 payments were for
- Food and Beverage$320.93 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 62 internal medicine physicians in South Bend · All internal medicine physicians in Indiana