Andrew Chi-Yeu Liu, MD
NPI 1710481866ActiveIndividual· Internal Medicine, Nephrology· Oceanside, CA
Internal Medicine, Nephrology (MD) with Balboa Nephrology Medical Group Inc, practicing in Oceanside, California. Their prescriptions cost Medicare Part D more than their services did: $315,075 for 1,366 claims, against $155,394 paid for services in 2024. Ardelyx, Inc. was the largest of 3 companies reporting payments in 2025, $160.32 in all, mostly food and beverage. Lists Tri-City Medical Center as a hospital affiliation.
Overview
| NPI | 1710481866 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 22, 2018 |
| Last updated in NPPES | Jan 16, 2026 |
| Certified by provider | Jan 16, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A165817 | 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 - Nephrology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 332 |
|---|---|
| Services billed | 2,462 across 23 procedure codes |
| Paid by Medicare | $155,394 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,366 · 3,160 30-day fills |
|---|---|
| Patients | 291 |
| Total drug cost | $315,075 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical group
- Balboa Nephrology Medical Group IncFountain Valley, CA · 76 clinicians
Hospital affiliation
- Tri-City Medical CenterOceanside, CA
Other facilities
- Fresenius Medical Care Buena CreekDialysis facility · Vista, CA
- Fresenius Medical Care North Coast Kidney CenterDialysis facility · Oceanside, CA
- Usrc Oceanside DialysisDialysis facility · Oceanside, CA
Industry payments (Open Payments)
- 2025$160.32 · 3 payments from 3 companies
- 2024$319.64 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ardelyx, Inc. | $67.34 | 1 |
| Kyowa Kirin, Inc. | $50.00 | 1 |
| Nxstage Medical, Inc. | $42.98 | 1 |
What the 2025 payments were for
- Food and Beverage$160.32 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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