Brian Zwecker, M.D.
NPI 1629363106ActiveIndividual· Internal Medicine, Nephrology· Montebello, CA
Internal Medicine, Nephrology (M.D.) in Montebello, California, trained at Tulane University School of Medicine (class of 2011). Their prescriptions cost Medicare Part D more than their services did: $505,955 for 2,198 claims, against $229,450 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 4 companies reporting payments in 2025, $142.76 in all, mostly food and beverage.
Overview
| NPI | 1629363106 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 13, 2011 |
| Last updated in NPPES | Jul 21, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A140925 | CA |
| Internal Medicine | 207R00000X | BP10041545 | TX |
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 | 253 |
|---|---|
| Services billed | 1,373 across 14 procedure codes |
| Paid by Medicare | $229,450 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,198 · 3,449 30-day fills |
|---|---|
| Patients | 255 |
| Total drug cost | $505,955 |
| Generic share | 70% of claims |
Education and affiliations
| Medical school | Tulane University School of Medicine |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Kidney Specialists Medical CorporationMontebello, CA · 6 clinicians
Hospital affiliations
- Pih Health Downey HospitalDowney, CA
- Pih Health Hospital-WhittierWhittier, CA
- Whittier Hospital Medical CenterWhittier, CA
Other facilities
- Davita Gardena DialysisDialysis facility · Gardena, CA
- Davita Gateway Plaza Dialysis CenterDialysis facility · Compton, CA
- Davita Kenneth Hahn Plaza Dialysis CenterDialysis facility · Los Angeles, CA
- Davita Premier Dialysis CenterDialysis facility · Cudahy, CA
- Davita Whittier DialysisDialysis facility · Whittier, CA
Industry payments (Open Payments)
- 2025$142.76 · 8 payments from 4 companies
- 2024$188.58 · 9 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $58.03 | 4 |
| Akebia Therapeutics Inc | $44.12 | 2 |
| Amgen Inc. | $26.56 | 1 |
| Fresenius USA Marketing, Inc. | $14.05 | 1 |
What the 2025 payments were for
- Food and Beverage$142.76 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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