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Compare the published Medicare service mix of Alka R Kothari, MD with clinicians in the same registry specialty: Pathology (CMS).

NORWALK, 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 · 46 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Yasmin F. Qasim, MD

Pathology (CMS) · Bellflower, CA

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to identify organisms including interpretation and report (88312)
  • Special stained specimen slides to examine tissue including interpretation and report (88313)
81%Service-mix similarity~2.8 milesView profile →

Steven Jo Ken Lum, M.D.

Pathology (CMS) · Anaheim, CA

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to identify organisms including interpretation and report (88312)
  • Blood smear interpretation by physician with written report (85060)
74%Service-mix similarity~8.4 milesView profile →

Terry M Welsh, MD

Pathology (CMS) · Anaheim, CA

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to identify organisms including interpretation and report (88312)
  • Blood smear interpretation by physician with written report (85060)
73%Service-mix similarity~8.4 milesView profile →

Lei Zhang, M.D.

Pathology (CMS) · Anaheim, CA

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to identify organisms including interpretation and report (88312)
  • Blood smear interpretation by physician with written report (85060)
72%Service-mix similarity~8.4 milesView profile →

Robert Schmidt, M.D.

Pathology (CMS) · Anaheim, CA

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to identify organisms including interpretation and report (88312)
  • Blood smear interpretation by physician with written report (85060)
72%Service-mix similarity~8.6 milesView profile →

Barbara Helena Biela, M.D., PH.D.

Pathology (CMS) · Lynwood, CA

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to identify organisms including interpretation and report (88312)
  • Special stained specimen slides to examine tissue including interpretation and report (88313)
69%Service-mix similarity~7.0 milesView profile →

Luke R Watson, MD

Pathology (CMS) · Long Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to identify organisms including interpretation and report (88312)
  • Blood smear interpretation by physician with written report (85060)
68%Service-mix similarity~9.1 milesView profile →

Steven Jeffrey Ohsie, M.D.

Dermatology · Pathology (CMS) · Rancho Dominguez, CA

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to identify organisms including interpretation and report (88312)
  • Special stained specimen slides to examine tissue including interpretation and report (88313)
66%Service-mix similarity~9.3 milesView profile →

Susan Sautao Lim, M.D.

Pathology (CMS) · Los Alamitos, CA

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to identify organisms including interpretation and report (88312)
  • Blood smear interpretation by physician with written report (85060)
60%Service-mix similarity~7.5 milesView profile →

Elham Khanifar, M.D.

Pathology (CMS) · Long Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to identify organisms including interpretation and report (88312)
  • Special stained specimen slides to examine tissue including interpretation and report (88313)
59%Service-mix similarity~9.1 milesView profile →

Sanja Krajisnik, MD

Pathology (CMS) · Rancho Dominguez, CA

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to identify organisms including interpretation and report (88312)
  • Blood smear interpretation by physician with written report (85060)
58%Service-mix similarity~9.3 milesView profile →

Alfred Mitsuru Yamamoto, M.D.

Pathology (CMS) · Lakewood, CA

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to identify organisms including interpretation and report (88312)
  • Blood smear interpretation by physician with written report (85060)
57%Service-mix similarity~5.1 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.