Joon Mo Myung, MD
NPI 1265598759ActiveIndividual· Internal Medicine, Gastroenterology· Flushing, NY
Internal Medicine, Gastroenterology (MD) with Myung Gastroenterology, P.C., practicing in Flushing, New York. Their prescriptions cost Medicare Part D more than their services did: $544,205 for 4,033 claims, against $44,769 paid for services in 2024. Gilead Sciences, Inc. was the largest of 6 companies reporting payments in 2025, $491.14 in all, mostly food and beverage.
Overview
| NPI | 1265598759 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 29, 2006 |
| Last updated in NPPES | Aug 13, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 7048348 | NY |
| Internal Medicine, Gastroenterology | 207RG0100X | 84164 | OH |
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 - Gastroenterology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 98 |
|---|---|
| Services billed | 214 across 10 procedure codes |
| Paid by Medicare | $44,769 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,033 · 4,367 30-day fills |
|---|---|
| Patients | 1,278 |
| Total drug cost | $544,205 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 1992 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical group
- Myung Gastroenterology, P.C.Flushing, NY · 2 clinicians
Industry payments (Open Payments)
- 2025$491.14 · 25 payments from 6 companies
- 2024$648.57 · 28 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $206.22 | 10 |
| Aimmune Therapeutics, Inc. | $92.20 | 5 |
| Abbvie Inc. | $85.31 | 5 |
| Ardelyx, Inc. | $54.02 | 2 |
| Phathom Pharmaceuticals, Inc. | $38.91 | 2 |
What the 2025 payments were for
- Food and Beverage$491.14 · 25 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 64 gastroenterologists in Flushing · All gastroenterologists in New York