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Compare the published Medicare service mix of Navrose S Grewal, M.D. with clinicians in the same registry specialty: Surgery.

LAKEWOOD, CA · 10 milesEdit location
Within 10 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 59 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Peyman Benharash, MD

Surgery · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Exclusion of appendage of left upper chamber of heart performed during other procedure on chest (33268)
41%Service-mix similarity~9.0 milesView profile →

Olivier Urayeneza, M.D.

Surgery · Paramount, CA

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
39%Service-mix similarity~4.3 milesView profile →

Curtis T Hunter, MD

Surgery · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Exclusion of appendage of left upper chamber of heart performed during other procedure on chest (33268)
  • Harvest of vein using an endoscope (33508)
38%Service-mix similarity~9.0 milesView profile →

Glenn Takeo Hifumi, MD

Surgery · Bellflower, CA

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
35%Service-mix similarity~3.9 milesView profile →

Joseph Moza, MD

Surgery · Norwalk, CA

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
31%Service-mix similarity~6.4 milesView profile →

Ayman Neoman, M.D.,

Surgery · Long Beach, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
24%Service-mix similarity~2.9 milesView profile →

James Michael Tatum, M.D.

Surgery · Long Beach, CA

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
24%Service-mix similarity~4.1 milesView profile →

Catherine E. Lewis, M.D.

Surgery · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
24%Service-mix similarity~9.0 milesView profile →

Viktor Gabriel, M.D.

Surgery · Long Beach, CA

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
23%Service-mix similarity~3.0 milesView profile →

Raul Jacobo Rosenthal, M.D.

Surgery · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
21%Service-mix similarity~9.0 milesView profile →

Yijun Chen, M.D.

Surgery · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
20%Service-mix similarity~9.0 milesView 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 approximate distance 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.