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Compare the published Medicare service mix of Alexander P Sah, MD with clinicians in the same registry specialty: Orthopedic Surgery (CMS).

FREMONT, CA · 25 milesEdit location
Within 25 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 · 15 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

John Terry Dearborn, MD

Orthopedic Surgery (CMS) · Menlo Park, CA

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and (G0180)
  • Replacement of knee joint, both sides of knee (27447)
80%Service-mix similarity~14.8 milesView profile →

Jason Scott Lipof, M.D.

Orthopedic Surgery (CMS) · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and (G0180)
  • X-ray of knee, 4 or more views (73564)
73%Service-mix similarity~14.6 milesView profile →

Liam Christian Bosch, MD

Orthopedic Surgery (CMS) · Redwood City, CA

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Replacement of knee joint, both sides of knee (27447)
  • X-ray of knee, 4 or more views (73564)
69%Service-mix similarity~14.4 milesView profile →

Wendy Wan Wong, M.D.

Orthopedic Surgery (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Replacement of knee joint, both sides of knee (27447)
  • X-ray of knee, 4 or more views (73564)
64%Service-mix similarity~24.1 milesView profile →

Bradley Dean Crow, MD

Orthopedic Surgery (CMS) · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Replacement of knee joint, both sides of knee (27447)
  • Replacement of thigh bone and hip joint with prosthesis (27130)
57%Service-mix similarity~14.6 milesView profile →

James Irvin Huddleston, M.D.

Orthopedic Surgery (CMS) · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • Replacement of knee joint, both sides of knee (27447)
  • Replacement of thigh bone and hip joint with prosthesis (27130)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
56%Service-mix similarity~14.6 milesView profile →

Aaron Keith Salyapongse, MD

Orthopedic Surgery (CMS) · Dublin, CA

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Replacement of knee joint, both sides of knee (27447)
  • Replacement of thigh bone and hip joint with prosthesis (27130)
56%Service-mix similarity~10.3 milesView profile →

Christopher J Chen, MD

Orthopedic Surgery (CMS) · Berkeley, CA

Shared published services
3 shared services · view billing descriptions
  • Replacement of knee joint, both sides of knee (27447)
  • Replacement of thigh bone and hip joint with prosthesis (27130)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
51%Service-mix similarity~24.8 milesView profile →

Alexander Tyson Bradley, MD

Orthopedic Surgery (CMS) · Dublin, CA

Shared published services
3 shared services · view billing descriptions
  • Replacement of knee joint, both sides of knee (27447)
  • X-ray of knee, 4 or more views (73564)
  • Replacement of thigh bone and hip joint with prosthesis (27130)
49%Service-mix similarity~10.3 milesView profile →

William Joseph Maloney

Orthopedic Surgery (CMS) · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Replacement of knee joint, both sides of knee (27447)
  • Replacement of thigh bone and hip joint with prosthesis (27130)
49%Service-mix similarity~14.6 milesView profile →

Stuart Barry Goodman, MD, PHD

Orthopedic Surgery (CMS) · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • Replacement of knee joint, both sides of knee (27447)
  • Replacement of thigh bone and hip joint with prosthesis (27130)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
46%Service-mix similarity~14.6 milesView profile →

Derek Fakhredean Amanatullah, MD

Orthopedic Surgery (CMS) · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Replacement of knee joint, both sides of knee (27447)
  • Replacement of thigh bone and hip joint with prosthesis (27130)
45%Service-mix similarity~14.6 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.