Quick answers
- Does Jason A. Liauw accept Medicare assignment?
- Yes. Medicare's clinician data says Jason A. Liauw 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.
- How many Medicare patients does Jason A. Liauw see?
- In 2024, CMS data shows 578 Original Medicare patients and 2,004 services for Jason A. Liauw. This counts Original Medicare only and measures volume, not quality.
- What is Jason A. Liauw's NPI number?
- 1285806091. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Jason A. Liauw, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 578 |
|---|---|
| Services billed to Medicare | 2,004 |
| Different services or procedures | 77 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)535 services
- New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)251 services
- Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment (63048)134 services
- Fusion of additional segment of spine (22614)128 services
- Critical care, first 30-74 minutes (99291)128 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis75%
- Ischemic heart disease34%
- Anxiety31%
- Chronic kidney disease28%
Hospitals where Jason A. Liauw works
Medicare's Facility Affiliation Data lists Jason A. Liauw 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
- Hoag Orthopedic InstituteIrvine, CA · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 050769
- Memorialcare Saddleback Medical CenterLaguna Hills, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050603
- 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 Jason A. Liauw is enrolled with Medicare (CMS data updated October 2, 2026).
- 16300 Sand Canyon Ave, Suite 511Irvine, CA 92618 (714) 634‑4567
- 23961 Calle De La Magdalena, Suite 405Laguna Hills, CA 92653 (714) 634‑4567
- 26730 Crown Valley Pkwy, Suite 200Mission Viejo, CA 92691 (714) 634‑4567
Group practices
Medicare enrollment lists Jason A. Liauw as a member of this group (CMS data updated October 2, 2026).
- Orthopaedic Specialty Institute Medical Group of Orange County64 clinicians in the group
Specialties
- Neurosurgeryprimary
Other neurosurgeons in Irvine
Clinicians with the same Medicare primary specialty in Irvine, CA — not a recommendation.
Other clinicians in Orthopaedic Specialty Institute Medical Group of Orange County
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Stanford University School Of Medicine |
| Graduation year | 2008 (18 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1285806091 |
| 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
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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