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Compare the published Medicare service mix of Aman Shabi Khan, MD with clinicians in the same registry specialty: Orthopedic Surgery (CMS).

DALY CITY, 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 · 12 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

John Belzer, M.D.

Orthopedic Surgery (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • X-ray of shoulder, minimum of 2 views (73030)
46%Service-mix similarity~6.0 milesView profile →

James L Chen, M.D., M.P.H.

Orthopedic Surgery · Sports Medicine (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • X-ray of shoulder, minimum of 2 views (73030)
38%Service-mix similarity~7.4 milesView profile →

Keith Wei Chan, M.D.

Orthopedic Surgery (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Mri scan of leg joint without contrast (73721)
36%Service-mix similarity~6.0 milesView profile →

Stephanie Erin Wong, M.D.

Orthopedic Surgery (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
32%Service-mix similarity~6.6 milesView profile →

Chunbong Benjamin Ma, MD

Orthopedic Surgery (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
31%Service-mix similarity~4.7 milesView profile →

William Alvin Berrigan, M.D.

Orthopedic Surgery · Physical Medicine And Rehabilitation · Sports Medicine (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Aspiration and/or injection of fluid large joint using ultrasound guidance (20611)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
30%Service-mix similarity~6.6 milesView profile →

Brian Feeley, M.D.

Orthopedic Surgery (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
28%Service-mix similarity~6.6 milesView profile →

Neil Pathare, M.D.

Orthopedic Surgery · Sports Medicine (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
27%Service-mix similarity~7.4 milesView profile →

Ajith Malige

Orthopedic Surgery (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • X-ray of knee, 3 views (73562)
25%Service-mix similarity~7.4 milesView profile →

Alan Lingqi Zhang, M.D.

Orthopedic Surgery (CMS) · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
23%Service-mix similarity~6.6 milesView profile →

Jeffrey L Halbrecht, MD, PC

Specialty details in registry · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Aspiration and/or injection of fluid large joint using ultrasound guidance (20611)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
21%Service-mix similarity~6.4 milesView profile →

Paul Byron Roache, M.D.

Orthopedic Surgery (CMS) · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • Limited ultrasound scan of joint or other extremity structure except blood vessels (76882)
4%Service-mix similarity~4.7 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.