Hashim Abdul-Rehman Mapara, MD
NPI 1306074927ActiveIndividual· Internal Medicine, Nephrology· Oxnard, CA
Internal Medicine, Nephrology (MD) with County of Ventura and 2 other groups, practicing in Oxnard, California. Their prescriptions cost Medicare Part D more than their services did: $579,151 for 3,206 claims, against $242,086 paid for services in 2024. Amgen Inc. was the largest of 5 companies reporting payments in 2025, $179.24 in all, mostly food and beverage. Lists Community Memorial Hospital - Ventura and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1306074927 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jun 23, 2009 |
| Last updated in NPPES | Feb 6, 2025 |
| Certified by provider | Feb 6, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A125668 | 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 - Hospitalist (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 654 |
|---|---|
| Services billed | 2,155 across 24 procedure codes |
| Paid by Medicare | $242,086 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,206 · 6,406 30-day fills |
|---|---|
| Patients | 421 |
| Total drug cost | $579,151 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Hospitalist |
| Secondary specialties | Internal Medicine, Nephrology |
| Telehealth | Offers telehealth |
Medical groups
- County of VenturaVentura, CA · 344 clinicians
- Renal Consultants of Ventura County IncCamarillo, CA · 8 clinicians
- Advanced Care Multispecialty Medical Group APCThousand Oaks, CA · 2 clinicians
Hospital affiliations
- Community Memorial Hospital - VenturaVentura, CA
- Los Robles Hospital & Medical CenterThousand Oaks, CA
- Northridge Hospital Medical CenterNorthridge, CA
- St Johns Regional Medical CenterOxnard, CA
- Ventura County Medical CenterVentura, CA
Other facilities
- Davita College Estates DialysisDialysis facility · Oxnard, CA
- Davita Moorpark Dialysis CenterDialysis facility · Moorpark, CA
- Davita Oxnard Dialysis CenterDialysis facility · Oxnard, CA
- Davita Ventura DialysisDialysis facility · Ventura, CA
- Fmc-Conejo Valley Renal CenterDialysis facility · Thousand Oaks, CA
Industry payments (Open Payments)
- 2025$179.24 · 7 payments from 5 companies
- 2024$332.68 · 11 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $46.85 | 2 |
| Fresenius USA Marketing, Inc. | $45.87 | 2 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $29.80 | 1 |
| Alexion Pharmaceuticals, Inc. | $28.54 | 1 |
| Bayer Healthcare Pharmaceuticals Inc. | $28.18 | 1 |
What the 2025 payments were for
- Food and Beverage$179.24 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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