Quick answers
- Which hospitals does Ciaran O'Brien work at?
- Medicare's official clinician data lists Ciaran O'Brien at 2 hospitals: Cooper University Hospital and Inspira Medical Center Vineland. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ciaran O'Brien see patients?
- Medicare's clinician data lists 2 practice locations, including Camden, NJ and Sicklerville, NJ. Call before your visit to confirm the address.
- What is Ciaran O'Brien's specialty?
- Medicare lists Vascular Surgery as the primary specialty.
- Does Ciaran O'Brien accept Medicare assignment?
- Yes. Medicare's clinician data says Ciaran O'Brien 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.
- What is the phone number for Ciaran O'Brien?
- (856) 270-4100, as listed in official Medicare / NPI Registry data.
- What is Ciaran O'Brien's NPI number?
- 1548624877. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ciaran O'Brien works
Medicare's Facility Affiliation Data lists Ciaran O'Brien at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Cooper University HospitalCamden, NJ · Acute Care Hospital · CCN 310014
- Inspira Medical Center VinelandVineland, NJ · Acute Care Hospital · CCN 310032
Practice locations
Addresses where Ciaran O'Brien is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Cooper PlzCamden, NJ 08103 (856) 270‑4100
- 500 Berlin Cross Keys RdSicklerville, NJ 08081 (856) 536‑1536
Group practices
Medicare enrollment lists Ciaran O'Brien as a member of this group (CMS data updated 2026-10-02).
- Cooper Surgical Associates, PA305 clinicians in the group
Specialties
- Vascular Surgeryprimary
Other vascular surgeons in Camden
Clinicians with the same Medicare primary specialty in Camden, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Columbia University College Of Physicians And Surgeons |
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548624877 |
| 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