Keng-Yu Chuang, M.D.
NPI 1730380676ActiveIndividual· Internal Medicine, Gastroenterology· Sun City, AZ
Internal Medicine, Gastroenterology (M.D.) in Sun City, Arizona, trained at Rutgers New Jersey Medical School (class of 2004). Their prescriptions cost Medicare Part D more than their services did: $1,193,940 for 1,199 claims, against $103,008 paid for services in 2024. Capsovision, Inc. was the largest of 17 companies reporting payments in 2025, $5,128 in all, mostly consulting fees.
Overview
| NPI | 1730380676 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | May 29, 2007 |
| Last updated in NPPES | Dec 10, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 81994 | AZ |
| Internal Medicine | 207R00000X | MD430583 | PA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 384 |
|---|---|
| Services billed | 936 across 26 procedure codes |
| Paid by Medicare | $103,008 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,199 · 2,223 30-day fills |
|---|---|
| Patients | 507 |
| Total drug cost | $1,193,940 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | Rutgers New Jersey Medical School |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Arizona Digestive Health PCSun City, AZ · 136 clinicians
Hospital affiliations
- Banner del E. Webb Medical CenterSun City West, AZ
- Banner Thunderbird Medical CenterGlendale, AZ
Industry payments (Open Payments)
- 2025$5,128 · 89 payments from 17 companies
- 2024$4,812 · 96 payments from 25 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Capsovision, Inc. | $3,225 | 2 |
| Janssen Biotech, Inc. | $454.82 | 19 |
| Abbvie Inc. | $209.29 | 13 |
| Madrigal Pharmaceuticals | $206.67 | 8 |
| Gilead Sciences, Inc. | $201.12 | 8 |
What the 2025 payments were for
- Consulting Fee$3,225 · 2 payments
- Food and Beverage$1,903 · 87 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All Internal Medicine, Gastroenterology providers in Arizona →