Quick answers
- Does Lauren M. Lum accept Medicare assignment?
- Yes. Medicare's clinician data says Lauren M. Lum 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 Lauren M. Lum's NPI number?
- 1124856885. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Lauren M. Lum works
Medicare's Facility Affiliation Data lists Lauren M. Lum 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.
- Providence Mission HospitalMission Viejo, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050567
Practice locations
Addresses where Lauren M. Lum is enrolled with Medicare (CMS data updated October 2, 2026).
- 23961 Calle De La Magdalena, Suite 500Laguna Hills, CA 92653 (949) 855‑1101
- 26691 Plaza, Suite 120Mission Viejo, CA 92691 (949) 855‑1101
Group practices
Medicare enrollment lists Lauren M. Lum as a member of this group (CMS data updated October 2, 2026).
- Orange County Urology Associates Inc a Medical Group20 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Laguna Hills
Clinicians with the same Medicare primary specialty in Laguna Hills, CA — not a recommendation.
Other clinicians in Orange County Urology Associates Inc a Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2025 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1124856885 |
| 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