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Compare the published Medicare service mix of Jason A Liauw, M.D. with clinicians in the same registry specialty: Neurosurgery (CMS).

LAGUNA HILLS, CA · Exact areaEdit location

2024 published service data · 5 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Robert J Jackson, M.D.

Neurosurgery (CMS) · Laguna Hills, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment (63048)
72%Service-mix similarityView profile →

Brian Hwang, MD

Neurosurgery (CMS) · Laguna Hills, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Critical care, first 30-74 minutes (99291)
60%Service-mix similarityView profile →

Haley Stauber

Physician Assistant (CMS) · Laguna Hills, CA

Shared published services
3 shared services · view billing descriptions
  • Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment (63048)
  • Fusion of additional segment of spine (22614)
  • Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment (63047)
58%Service-mix similarityView profile →

Farzad Massoudi, M.D.

Neurosurgery (CMS) · Laguna Hills, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment (63048)
45%Service-mix similarityView profile →

Kevin Gerard Waldron, MD

Neurosurgery (CMS) · Laguna Hills, CA

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
22%Service-mix similarityView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in NPI order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.