John T. Hsieh, M.D.
NPI 1659376606ActiveIndividual· Internal Medicine, Nephrology· Long Beach, CA
Internal Medicine, Nephrology (M.D.) in Long Beach, California, trained at Tufts University School of Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $830,245 for 3,150 claims, against $198,798 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 16 companies reporting payments in 2025, $1,127 in all, mostly food and beverage.
Overview
| NPI | 1659376606 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 16, 2005 |
| Last updated in NPPES | Jul 9, 2026 |
| Certified by provider | Jul 9, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A73107 | 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 | 543 |
|---|---|
| Services billed | 3,483 across 30 procedure codes |
| Paid by Medicare | $198,798 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,150 · 7,366 30-day fills |
|---|---|
| Patients | 431 |
| Total drug cost | $830,245 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Healthcare Partners Affiliates Medical GroupAnaheim, CA · 754 clinicians
- Coast Nephrology Medical Group Inc.Long Beach, CA · 7 clinicians
Hospital affiliations
- College Medical CenterLong Beach, CA
- Memorialcare Long Beach Medical CenterLong Beach, CA
- St Mary Medical CenterLong Beach, CA
- Uci Health-OrangeOrange, CA
Other facilities
- Davita El Dorado DialysisDialysis facility · Long Beach, CA
- Davita Los Alamitos DialysisDialysis facility · Los Alamitos, CA
- Usrc Los Alamitos DialysisDialysis facility · Los Alamitos, CA
- Usrc West Coast DialysisDialysis facility · Long Beach, CA
- Memoriacare Long Beach Medical CenterInpatient rehabilitation facility · Long Beach, CA
Industry payments (Open Payments)
- 2025$1,127 · 40 payments from 16 companies
- 2024$922.65 · 36 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $183.67 | 4 |
| Aurinia Pharma U.S., Inc. | $101.03 | 4 |
| Travere Therapeutics, Inc. | $97.88 | 3 |
| Ardelyx, Inc. | $88.21 | 3 |
| Otsuka America Pharmaceutical, Inc. | $85.55 | 3 |
What the 2025 payments were for
- Food and Beverage$1,127 · 40 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 30 nephrologists in Long Beach · All nephrologists in California