Arun Kumar Arumugam Raajasekar, MD
NPI 1801143722ActiveIndividual· Internal Medicine, Hematology & Oncology· Mountain View, CA
Internal Medicine, Hematology & Oncology (MD) with El Camino Health Medical Network LLC, practicing in Mountain View, California. Their prescriptions cost Medicare Part D more than their services did: $4,976,642 for 1,530 claims, against $135,723 paid for services in 2024. Tersera Therapeutics LLC reported $942.00 in payments in 2025, mostly consulting fees. Lists El Camino Health and 1 other hospital as hospital affiliations.
Overview
| NPI | 1801143722 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 9, 2012 |
| Last updated in NPPES | Feb 12, 2026 |
| Certified by provider | Feb 12, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A176019 | 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 - Hematology/Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 434 |
|---|---|
| Services billed | 2,303 across 17 procedure codes |
| Paid by Medicare | $135,723 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,530 · 1,932 30-day fills |
|---|---|
| Patients | 268 |
| Total drug cost | $4,976,642 |
| Generic share | 79% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- El Camino Health Medical Network LLCLos Gatos, CA · 202 clinicians
Hospital affiliations
- El Camino HealthMountain View, CA
- Stanford Health CareStanford, CA
Industry payments (Open Payments)
- 2025$942.00 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Tersera Therapeutics LLC | $942.00 | 2 |
What the 2025 payments were for
- Consulting Fee$942.00 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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