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Compare the published Medicare service mix of Eric J Kahle, M.D. with clinicians in the same registry specialty: Ophthalmology.

SEBASTOPOL, 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 · 18 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Madeline Dianne Ripa, M.D.

Ophthalmology · Santa Rosa, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
83%Service-mix similarity~7.4 milesView profile →

William H Bartlett, MD

Ophthalmology · Santa Rosa, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
82%Service-mix similarity~5.3 milesView profile →

Emil Shieh, MD

Ophthalmology · Santa Rosa, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
78%Service-mix similarity~7.4 milesView profile →

Nina Ni, MD

Ophthalmology · Santa Rosa, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
78%Service-mix similarity~7.4 milesView profile →

Lillian Yang, MD

Ophthalmology · Santa Rosa, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
78%Service-mix similarity~7.4 milesView profile →

Venkatesh Brahma, M.D.

Ophthalmology · Santa Rosa, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
77%Service-mix similarity~7.4 milesView profile →

Arwa Alsamarae, M.D.

Ophthalmology · Santa Rosa, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
77%Service-mix similarity~7.4 milesView profile →

Jasdeep Singh Sabharwal, MD

Ophthalmology · Santa Rosa, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
74%Service-mix similarity~5.3 milesView profile →

Robert Arthur Yohai, M.D.

Ophthalmology · Santa Rosa, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
73%Service-mix similarity~7.1 milesView profile →

Sophia Wamsley Schluter, MD

Ophthalmology · Santa Rosa, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
73%Service-mix similarity~7.4 milesView profile →

Daniel George Rich, M.D.

Ophthalmology · Santa Rosa, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
  • Measurement of corneal curvature and depth of eye (92136)
64%Service-mix similarity~7.4 milesView profile →

Grace Shuang Zhang, MD

Ophthalmology · Santa Rosa, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
  • Measurement of corneal curvature and depth of eye (92136)
61%Service-mix similarity~9.1 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.