Nerses Simon Tchekmedyian, M.D.
NPI 1821032129ActiveIndividual· Internal Medicine, Hematology & Oncology· Irvine, CA
Internal Medicine, Hematology & Oncology (M.D.) with City of Hope Medical Foundation, practicing in Irvine, California. Mostly services rather than prescriptions: Medicare paid $419,477 for 128 patients in 2024, with only 29 Part D claims. Novartis Pharmaceuticals Corporation reported $102.85 in payments in 2025, mostly food and beverage. Lists Hoag Memorial Hospital Presbyterian as a hospital affiliation.
Overview
| NPI | 1821032129 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 16, 2006 |
| Last updated in NPPES | May 30, 2024 |
| Certified by provider | May 30, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A42410 | CA |
| Internal Medicine, Medical Oncology | 207RX0202X | A42410 | 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 | 128 |
|---|---|
| Services billed | 22,430 across 93 procedure codes |
| Paid by Medicare | $419,477 |
Part D prescriptions in 2024
| Prescriptions (claims) | 29 · 54 30-day fills |
|---|---|
| Total drug cost | $24,007 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 1978 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- City of Hope Medical FoundationDuarte, CA · 982 clinicians
Hospital affiliation
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
Industry payments (Open Payments)
- 2025$102.85 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $102.85 | 1 |
What the 2025 payments were for
- Food and Beverage$102.85 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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