Derek Marc Dobalian, MD
NPI 1235225467ActiveIndividual· Internal Medicine, Gastroenterology· Long Beach, CA
Internal Medicine, Gastroenterology (MD) in Long Beach, California, trained at Loma Linda University School of Medicine (class of 1981). Their prescriptions cost Medicare Part D more than their services did: $52,730 for 931 claims, against $23,072 paid for services in 2024.
Overview
| NPI | 1235225467 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 5, 2006 |
| Last updated in NPPES | Aug 25, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | G48996 | 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 - Gastroenterology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 35 |
|---|---|
| Services billed | 187 across 12 procedure codes |
| Paid by Medicare | $23,072 |
Part D prescriptions in 2024
| Prescriptions (claims) | 931 · 1,353 30-day fills |
|---|---|
| Patients | 104 |
| Total drug cost | $52,730 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | Loma Linda University School of Medicine |
|---|---|
| Graduation year | 1981 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliation
- Coast Plaza HospitalNorwalk, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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