Oliver K. Khakmahd, MD
NPI 1164529830ActiveIndividual· Internal Medicine, Nephrology· Berkeley, CA
Internal Medicine, Nephrology (MD) with East Bay Nephrology Medical Group Inc and 1 other group, practicing in Berkeley, California. Their prescriptions cost Medicare Part D more than their services did: $328,863 for 967 claims, against $134,734 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 7 companies reporting payments in 2025, $317.43 in all, mostly food and beverage. Lists Alta Bates Summit Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1164529830 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 17, 2006 |
| Last updated in NPPES | Jul 9, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A48805 | 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 | 432 |
|---|---|
| Services billed | 1,767 across 41 procedure codes |
| Paid by Medicare | $134,734 |
Part D prescriptions in 2024
| Prescriptions (claims) | 967 · 2,385 30-day fills |
|---|---|
| Patients | 166 |
| Total drug cost | $328,863 |
| Generic share | 75% of claims |
Education and affiliations
| Graduation year | 1989 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- East Bay Nephrology Medical Group IncSan Pablo, CA · 31 clinicians
- Dialysis Access Center A Medical CorporationOakland, CA · 2 clinicians
Hospital affiliations
- Alta Bates Summit Medical CenterOakland, CA
- Alta Bates Summit Medical Center - Alta Bates CampBerkeley, CA
- Stanford Health CareStanford, CA
Other facilities
- Davita Oakland Peritoneal Dialysis CenterDialysis facility · Oakland, CA
- Rai-Oakland Home ProgramDialysis facility · Oakland, CA
Industry payments (Open Payments)
- 2025$317.43 · 12 payments from 7 companies
- 2024$265.07 · 9 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $95.46 | 4 |
| Ardelyx, Inc. | $59.67 | 2 |
| Vantive US Healthcare LLC | $48.95 | 1 |
| Fresenius USA Marketing, Inc. | $48.70 | 2 |
| Amgen Inc. | $27.80 | 1 |
What the 2025 payments were for
- Food and Beverage$317.43 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 25 nephrologists in Berkeley · All nephrologists in California