Quick answers
- Which hospitals does Derek M. Dobalian work at?
- Medicare's official clinician data lists Derek M. Dobalian at 1 hospital: Coast Plaza Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Derek M. Dobalian see patients?
- Medicare's clinician data lists 1 practice location in Long Beach, CA. Call before your visit to confirm the address.
- What is Derek M. Dobalian's specialty?
- Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
- Does Derek M. Dobalian accept Medicare assignment?
- Yes. Medicare's clinician data says Derek M. Dobalian accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Derek M. Dobalian offer telehealth?
- Medicare's clinician data says Derek M. Dobalian offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Derek M. Dobalian?
- (562) 420-7670, as listed in official Medicare / NPI Registry data.
- What is Derek M. Dobalian's NPI number?
- 1235225467. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Derek M. Dobalian works
Medicare's Facility Affiliation Data lists Derek M. Dobalian at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Coast Plaza HospitalNorwalk, CA · Acute Care Hospital · CCN 050771
Practice locations
Addresses where Derek M. Dobalian is enrolled with Medicare (CMS data updated 2026-10-02).
- 3816 Woodruff Ave, Suite 307Long Beach, CA 90808 (562) 420‑7670
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Long Beach
Clinicians with the same Medicare primary specialty in Long Beach, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loma Linda University School Of Medicine |
| Graduation year | 1981 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1235225467 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians