Quick answers
- Does Karen Anne A. O'Laco accept Medicare assignment?
- Yes. Medicare's clinician data says Karen Anne A. O'Laco accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Karen Anne A. O'Laco's NPI number?
- 1386221448. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Karen Anne A. O'Laco works
Medicare's Facility Affiliation Data lists Karen Anne A. O'Laco at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Hoag Memorial Hospital PresbyterianNewport Beach, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050224
Practice locations
Addresses where Karen Anne A. O'Laco is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Hoag DrNewport Beach, CA 92663 (949) 645‑8600
Group practices
Medicare enrollment lists Karen Anne A. O'Laco as a member of this group (CMS data updated October 2, 2026).
- Newport Harbor Anesthesia Consultants Medical Group Inc95 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Newport Beach
Clinicians with the same Medicare primary specialty in Newport Beach, CA — not a recommendation.
Other clinicians in Newport Harbor Anesthesia Consultants Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Geffen School Of Medicine |
| Graduation year | 2021 (5 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1386221448 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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