Quick answers
- Where does Trevor Monahan see patients?
- Medicare's clinician data lists 2 practice locations, including Honolulu, HI and Hilo, HI. Call before your visit to confirm the address.
- What is Trevor Monahan's specialty?
- Medicare lists Optometry as the primary specialty.
- Does Trevor Monahan accept Medicare assignment?
- Yes. Medicare's clinician data says Trevor Monahan 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 Trevor Monahan?
- (808) 735-7633, as listed in official Medicare / NPI Registry data.
- What is Trevor Monahan's NPI number?
- 1780161729. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Trevor Monahan is enrolled with Medicare (CMS data updated 2026-10-02).
- 1401 S Beretania St, Suite 570Honolulu, HI 96814 (808) 735‑7633
- 34 W Kawailani StHilo, HI 96720 (808) 935‑8887
Group practices
Medicare enrollment lists Trevor Monahan as a member of these groups (CMS data updated 2026-10-02).
- MRS Hilo LLC5 clinicians in the group
- Monahan Od LLC2 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Honolulu
Clinicians with the same Medicare primary specialty in Honolulu, HI — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Medical school | Pacific University - College Of Optometry |
| Graduation year | 2018 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1780161729 |
| 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
- 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