John Sun, DO
NPI 1205840899ActiveIndividual· Internal Medicine, Gastroenterology· Camillus, NY
Internal Medicine, Gastroenterology (DO) in Camillus, New York, trained at New York College of Osteo Medicine of New York Institute of Technology (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $879,156 for 1,532 claims, against $82,419 paid for services in 2024. Abbvie Inc. was the largest of 24 companies reporting payments in 2025, $2,741 in all, mostly food and beverage.
Overview
| NPI | 1205840899 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Jul 28, 2006 |
| Last updated in NPPES | Jun 17, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 235028 | NY |
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 | 471 |
|---|---|
| Services billed | 751 across 50 procedure codes |
| Paid by Medicare | $82,419 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,532 · 2,988 30-day fills |
|---|---|
| Patients | 425 |
| Total drug cost | $879,156 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | New York College of Osteo Medicine of New York Institute of Technology |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Gastroenterology |
Medical groups
- St Josephs Medical PCSyracuse, NY · 382 clinicians
- Physician Care PCOswego, NY · 74 clinicians
- Associated Gastroenterologists of Central New York PCEast Syracuse, NY · 15 clinicians
Hospital affiliations
- Carthage Area Hospital, IncOgdensburg, NY
- Guthrie Cortland Regional Medical CenterCortland, NY
- Oswego HospitalOswego, NY
- St Joseph's Hospital Health CenterSyracuse, NY
- University Hospital S U N y Health Science CenterSyracuse, NY
Industry payments (Open Payments)
- 2025$2,741 · 141 payments from 24 companies
- 2024$2,917 · 165 payments from 25 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $380.43 | 23 |
| Takeda Pharmaceuticals U.S.A., Inc. | $319.94 | 15 |
| Qol Medical, LLC | $257.52 | 10 |
| Janssen Biotech, Inc. | $245.80 | 14 |
| Regeneron Healthcare Solutions, Inc. | $149.12 | 5 |
What the 2025 payments were for
- Food and Beverage$2,730 · 140 payments
- Education$10.48 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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