Dr. John Y. Ko, DO
Gastroenterology (Gastroenterology Physician)
620 Shadow Ln
Las Vegas, NV 89106
Who else practices at this address →
Clark County includes primary care (9% of residents) shortage areas. About shortage areas
At a glance
- In the NPI registry since
- 2022
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. What an NPI is
Education and training
- 2022Registered with an NPI (national billing number; not a license date)
Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Gastroenterology Physician primary
NV license DO3792 -
General Practice Physician
NV license DO3792 -
Student in an Organized Health Care Education/Training Program
NV license SL1890
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Atorvastatin Calcium Other prescribers in Las Vegas, NV | 13 |
| Trazodone Hcl Other prescribers in Las Vegas, NV | 13 |
| Amlodipine Besylate Other prescribers in Las Vegas, NV | 11 |
| Pantoprazole Sodium Other prescribers in Las Vegas, NV | 11 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 10 companies reported 15 payments worth $1,350 in total to this clinician.
| AbbVie Inc. | $530 |
|---|---|
| Novo Nordisk Inc | $160 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $124 |
| Gilead Sciences, Inc. | $122 |
| Aimmune Therapeutics, Inc. | $110 |
| Janssen Biotech, Inc. | $101 |
| Boston Scientific Corporation | $87.68 |
| Madrigal Pharmaceuticals | $84.90 |
| Food and Beverage | $1,350 |
|---|
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.