Derya Jim Coskun, MD
NPI 1326061318ActiveIndividual· Psychiatry & Neurology, Neurology· Chula Vista, CA
Psychiatry & Neurology, Neurology (MD) with Emergency and Acute Care Medical Corporation and 1 other group, practicing in Chula Vista, California. Their prescriptions cost Medicare Part D more than their services did: $232,306 for 565 claims, against $48,578 paid for services in 2024. Tg Therapeutics, Inc. reported $21.04 in payments in 2025, mostly food and beverage. Lists Scripps Mercy Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1326061318 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 25, 2006 |
| Last updated in NPPES | Sep 19, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | C53206 | CA |
| Psychiatry & Neurology, Neurology | 2084N0400X | 041259 | CT |
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 - Neurology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 328 |
|---|---|
| Services billed | 537 across 25 procedure codes |
| Paid by Medicare | $48,578 |
Part D prescriptions in 2024
| Prescriptions (claims) | 565 · 972 30-day fills |
|---|---|
| Patients | 80 |
| Total drug cost | $232,306 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 1997 |
|---|---|
| Medicare specialty | Neurology |
Medical groups
- Emergency and Acute Care Medical CorporationLa Mesa, CA · 422 clinicians
- On Call Specialists Medical Group of San Diego IncSan Diego, CA · 144 clinicians
Hospital affiliations
- Scripps Mercy HospitalSan Diego, CA
- Sharp Chula Vista Medical CenterChula Vista, CA
Industry payments (Open Payments)
- 2025$21.04 · 1 payment from 1 company
- 2024$26.34 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Tg Therapeutics, Inc. | $21.04 | 1 |
What the 2025 payments were for
- Food and Beverage$21.04 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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