Jamie Byun, MD
NPI 1306341953ActiveIndividual· Internal Medicine, Gastroenterology· Modesto, CA
Internal Medicine, Gastroenterology (MD) in Modesto, California, trained at University of Maryland School of Medicine (class of 2018). Their prescriptions cost Medicare Part D more than their services did: $124,221 for 215 claims, against $24,084 paid for services in 2024. Novo Nordisk Inc was the largest of 2 companies reporting payments in 2025, $239.91 in all, mostly food and beverage.
Overview
| NPI | 1306341953 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 27, 2018 |
| Last updated in NPPES | Oct 29, 2024 |
| Certified by provider | Oct 29, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A178102 | CA |
| Internal Medicine | 207R00000X | A178102 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 76 |
|---|---|
| Services billed | 453 across 6 procedure codes |
| Paid by Medicare | $24,084 |
Part D prescriptions in 2024
| Prescriptions (claims) | 215 · 339 30-day fills |
|---|---|
| Patients | 48 |
| Total drug cost | $124,221 |
Education and affiliations
| Medical school | University of Maryland School of Medicine |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Sutter Valley Medical FoundationModesto, CA · 2,500 clinicians
Hospital affiliation
- Memorial Medical CenterModesto, CA
Industry payments (Open Payments)
- 2025$239.91 · 14 payments from 2 companies
- 2024$180.45 · 10 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $179.40 | 12 |
| Lilly USA, LLC | $60.51 | 2 |
What the 2025 payments were for
- Food and Beverage$239.91 · 14 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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