Arun Sayram Singh, M.D.
NPI 1285817932ActiveIndividual· Internal Medicine, Hematology & Oncology· Santa Monica, CA
Internal Medicine, Hematology & Oncology (M.D.) in Santa Monica, California, trained at Rutgers New Jersey Medical School (class of 2005). Their prescriptions cost Medicare Part D more than their services did: $1,819,429 for 444 claims, against $258,506 paid for services in 2024. Daiichi Sankyo Inc. was the largest of 4 companies reporting payments in 2025, $35,913 in all, mostly consulting fees.
Overview
| NPI | 1285817932 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 17, 2007 |
| Last updated in NPPES | Dec 14, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A104027 | CA |
| Internal Medicine | 207R00000X | A104027 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 293 |
|---|---|
| Services billed | 11,192 across 82 procedure codes |
| Paid by Medicare | $258,506 |
Part D prescriptions in 2024
| Prescriptions (claims) | 444 · 519 30-day fills |
|---|---|
| Patients | 79 |
| Total drug cost | $1,819,429 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | Rutgers New Jersey Medical School |
|---|---|
| Graduation year | 2005 |
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- The Regents of the University of CaliforniaSanta Monica, CA · 1,462 clinicians
Hospital affiliations
- Ronald Reagan UCLA Medical CenterLos Angeles, CA
- Santa Monica - UCLA Med Ctr & Orthopaedic HospitalSanta Monica, CA
Industry payments (Open Payments)
- 2025$35,913 · 38 payments from 4 companies
- 2024$37,966 · 41 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Daiichi Sankyo Inc. | $22,583 | 20 |
| Deciphera Pharmaceuticals Inc. | $12,333 | 16 |
| Springworks Therapeutics, Inc. | $850.00 | 1 |
| Galvanize Therapeutics, Inc | $146.55 | 1 |
What the 2025 payments were for
- Consulting Fee$20,640 · 8 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$11,350 · 4 payments
- Travel and Lodging$2,720 · 12 payments
- Food and Beverage$1,203 · 14 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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