Kathy Nguyen, FNP
NPI 1700459583ActiveIndividual· Nurse Practitioner, Family· Concord, CA
Nurse Practitioner, Family (FNP) with John Muir Physician Network, practicing in Concord, California. Their prescriptions cost Medicare Part D more than their services did: $218,625 for 1,569 claims, against $103,513 paid for services in 2024. Janssen Biotech, Inc. was the largest of 25 companies reporting payments in 2025, $1,919 in all, mostly food and beverage. Lists John Muir Medical Center - Concord Campus and 1 other hospital as hospital affiliations.
Overview
| NPI | 1700459583 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP |
| Sole proprietor | No |
| NPI issued | Jul 20, 2021 |
| Last updated in NPPES | Oct 26, 2025 |
| Certified by provider | Oct 26, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 95017788 | 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 - Nurse Practitioner (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 621 |
|---|---|
| Services billed | 2,195 across 33 procedure codes |
| Paid by Medicare | $103,513 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,569 · 3,540 30-day fills |
|---|---|
| Patients | 638 |
| Total drug cost | $218,625 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
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$1,919 · 66 payments from 25 companies
- 2024$983.35 · 46 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $464.53 | 15 |
| Abbvie Inc. | $287.41 | 8 |
| Sumitomo Pharma America, Inc. | $233.05 | 6 |
| Olympus America Inc. | $145.94 | 2 |
| Antares Pharma, Inc. | $103.93 | 6 |
What the 2025 payments were for
- Food and Beverage$1,799 · 64 payments
- Education$120.05 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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