Quick answers
- Which hospitals does John E. O'Mara work at?
- Medicare's official clinician data lists John E. O'Mara at 1 hospital: Kaiser Foundation Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John E. O'Mara see patients?
- Medicare's clinician data lists 1 practice location in Honolulu, HI. Call before your visit to confirm the address.
- What is John E. O'Mara's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does John E. O'Mara accept Medicare assignment?
- Yes. Medicare's clinician data says John E. O'Mara 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 John E. O'Mara?
- (808) 432-0000, as listed in official Medicare / NPI Registry data.
- What is John E. O'Mara's NPI number?
- 1548376601. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John E. O'Mara works
Medicare's Facility Affiliation Data lists John E. O'Mara at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kaiser Foundation HospitalHonolulu, HI · Acute Care Hospital · CCN 120011
Practice locations
Addresses where John E. O'Mara is enrolled with Medicare (CMS data updated 2026-10-02).
- 3288 Moanalua RdHonolulu, HI 96819 (808) 432‑0000
Group practices
Medicare enrollment lists John E. O'Mara as a member of this group (CMS data updated 2026-10-02).
- Hawaii Permanente Medical Group Inc704 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Hawaii →
Other cardiologists in Honolulu
Clinicians with the same Medicare primary specialty in Honolulu, HI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Connecticut School Of Medicine |
| Graduation year | 2001 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548376601 |
| 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