Quick answers
- Which hospitals does Brett Larson work at?
- Medicare's official clinician data lists Brett Larson at 1 hospital: Hoag Memorial Hospital Presbyterian. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Brett Larson see patients?
- Medicare's clinician data lists 6 practice locations, including Costa Mesa, CA, Irvine, CA and Huntington Beach, CA. Call before your visit to confirm the address.
- What is Brett Larson's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Brett Larson accept Medicare assignment?
- Yes. Medicare's clinician data says Brett Larson 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 Brett Larson offer telehealth?
- Medicare's clinician data says Brett Larson offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Brett Larson?
- (714) 477-8460, as listed in official Medicare / NPI Registry data.
- What is Brett Larson's NPI number?
- 1154724052. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Brett Larson works
Medicare's Facility Affiliation Data lists Brett Larson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hoag Memorial Hospital PresbyterianNewport Beach, CA · Acute Care Hospital · CCN 050224
Practice locations
Addresses where Brett Larson is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1190 Baker St, Suite 105Costa Mesa, CA 92626 (714) 477‑8460
- 16205 Sand Canyon Ave, Suite 100Irvine, CA 92618 (949) 557‑0000
- 19582 Beach Blvd, Suite 180Huntington Beach, CA 92648 (714) 477‑8050
- 21115 Newport Coast DrNewport Beach, CA 92657 (949) 557‑0730
- 26671 Aliso Creek Rd, Suite 101Aliso Viejo, CA 92656 (949) 791‑3107
Group practices
Medicare enrollment lists Brett Larson as a member of this group (CMS data updated 2026-10-02).
- HMTS Inc118 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Costa Mesa
Clinicians with the same Medicare primary specialty in Costa Mesa, CA — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2014 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1154724052 |
| 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