Kristy Nguyen
NPI 1043773518ActiveIndividual· Hospitalist· Concord, CA
Hospitalist with John Muir Physician Network, practicing in Concord, California. Medicare paid $52,347 for services to 375 patients in 2024. Janssen Biotech, Inc. was the largest of 2 companies reporting payments in 2025, $303.75 in all, mostly food and beverage. Lists John Muir Medical Center - Concord Campus and 1 other hospital as hospital affiliations.
Overview
| NPI | 1043773518 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Apr 10, 2019 |
| Last updated in NPPES | Aug 23, 2022 |
| Certified by provider | Aug 23, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | A181007 | 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 - Hospitalist (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 375 |
|---|---|
| Services billed | 384 across 8 procedure codes |
| Paid by Medicare | $52,347 |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Hospitalist |
Medical group
- John Muir Physician NetworkPleasant Hill, CA · 494 clinicians
Hospital affiliations
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
Industry payments (Open Payments)
- 2025$303.75 · 3 payments from 2 companies
- 2024$13.51 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $284.28 | 2 |
| Novo Nordisk Inc | $19.47 | 1 |
What the 2025 payments were for
- Food and Beverage$303.75 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 31 hospitalists in Concord · All hospitalists in California