John Sy, M.D.
NPI 1639435738ActiveIndividual· Internal Medicine, Nephrology· Long Beach, CA
Internal Medicine, Nephrology (M.D.) in Long Beach, California, trained at University of Texas Southwestern Medical School at Dallas (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $377,028 for 925 claims, against $181,588 paid for services in 2024. Novo Nordisk Inc was the largest of 17 companies reporting payments in 2025, $660.48 in all, mostly food and beverage.
Overview
| NPI | 1639435738 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 3, 2012 |
| Last updated in NPPES | Jun 21, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A128347 | 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 | 415 |
|---|---|
| Services billed | 1,394 across 19 procedure codes |
| Paid by Medicare | $181,588 |
Part D prescriptions in 2024
| Prescriptions (claims) | 925 · 1,992 30-day fills |
|---|---|
| Patients | 127 |
| Total drug cost | $377,028 |
| Generic share | 70% of claims |
Education and affiliations
| Medical school | University of Texas Southwestern Medical School at Dallas |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical group
- Uc RegentsOrange, CA · 319 clinicians
Hospital affiliation
- Uci Health-OrangeOrange, CA
Other facilities
- Fmc-University Dialysis Center of OrangeDialysis facility · Orange, CA
- White Star Home Health, Inc.Home health agency · Burbank, CA
Industry payments (Open Payments)
- 2025$660.48 · 25 payments from 17 companies
- 2024$306.44 · 11 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $106.94 | 5 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $69.09 | 3 |
| Aurinia Pharma U.S., Inc. | $67.64 | 2 |
| Novartis Pharmaceuticals Corporation | $58.22 | 2 |
| Otsuka America Pharmaceutical, Inc. | $34.93 | 1 |
What the 2025 payments were for
- Food and Beverage$660.48 · 25 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