Khanh Kim Nguyen, M.D.
NPI 1770585044ActiveIndividual· Internal Medicine, Gastroenterology· San Jose, CA
Internal Medicine, Gastroenterology (M.D.) in San Jose, California, trained at University of Southern California Keck School of Medicine (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $1,253,109 for 1,600 claims, against $82,931 paid for services in 2024. Medtronic, Inc. was the largest of 7 companies reporting payments in 2025, $466.99 in all, mostly food and beverage.
Overview
| NPI | 1770585044 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 1, 2005 |
| Last updated in NPPES | Nov 7, 2023 |
| Certified by provider | Nov 7, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A61955 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 354 |
|---|---|
| Services billed | 930 across 26 procedure codes |
| Paid by Medicare | $82,931 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,600 · 2,155 30-day fills |
|---|---|
| Patients | 568 |
| Total drug cost | $1,253,109 |
| Generic share | 50% of claims |
Education and affiliations
| Medical school | University of Southern California Keck School of Medicine |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Gastroenterology |
Medical group
- San Jose Gastroenterology, Inc.San Jose, CA · 11 clinicians
Industry payments (Open Payments)
- 2025$466.99 · 14 payments from 7 companies
- 2024$185.39 · 4 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $127.82 | 1 |
| Gilead Sciences, Inc. | $98.93 | 4 |
| Janssen Biotech, Inc. | $80.27 | 2 |
| Abbvie Inc. | $77.10 | 4 |
| Aimmune Therapeutics, Inc. | $32.13 | 1 |
What the 2025 payments were for
- Food and Beverage$416.00 · 13 payments
- Education$50.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 65 gastroenterologists in San Jose · All gastroenterologists in California