John Ryan, M.D.
NPI 1073695698ActiveIndividual· Internal Medicine, Gastroenterology· Las Vegas, NV
Internal Medicine, Gastroenterology (M.D.) in Las Vegas, Nevada, trained at University of South Carolina School of Medicine (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $288,008 for 404 claims, against $103,323 paid for services in 2024. Abbvie Inc. was the largest of 10 companies reporting payments in 2025, $1,152 in all, mostly food and beverage.
Overview
| NPI | 1073695698 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 20, 2006 |
| Last updated in NPPES | Feb 22, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 14069 | NV |
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 (NV) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 375 |
|---|---|
| Services billed | 1,367 across 44 procedure codes |
| Paid by Medicare | $103,323 |
Part D prescriptions in 2024
| Prescriptions (claims) | 404 · 588 30-day fills |
|---|---|
| Patients | 191 |
| Total drug cost | $288,008 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | University of South Carolina School of Medicine |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- Kim Chen PLLCLas Vegas, NV · 18 clinicians
Hospital affiliations
- Mountainview HospitalLas Vegas, NV
- Southern Hills Hospital and Medical CenterLas Vegas, NV
Industry payments (Open Payments)
- 2025$1,152 · 34 payments from 10 companies
- 2024$1,355 · 44 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $553.06 | 22 |
| Madrigal Pharmaceuticals | $201.12 | 3 |
| Boston Scientific Corporation | $139.26 | 1 |
| Ferring Pharmaceuticals Inc. | $118.09 | 1 |
| Janssen Biotech, Inc. | $34.47 | 2 |
What the 2025 payments were for
- Food and Beverage$1,152 · 34 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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