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Compare the published Medicare service mix of Cristina R. Harnsberger, M.D. with clinicians in the same registry specialty: General Surgery (CMS).

CA · Exact areaEdit location

2024 published service data · 123 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Brian Joseph Mcguinness, M.D.

Colorectal Surgery (Proctology) · Critical Care (Intensivists) (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Diagnostic exam of anus using an endoscope (46600)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
78%Service-mix similarityView profile →

Benjamin Abbadessa, M.D.

Colorectal Surgery (Proctology) · General Surgery (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Diagnostic exam of anus using an endoscope (46600)
  • 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 low level od decision making, if using time, 20 minutes or more (99213)
74%Service-mix similarityView profile →

Steven Derek Mills, MD

Colorectal Surgery (Proctology) (CMS) · Long Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Diagnostic exam of anus using an endoscope (46600)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
70%Service-mix similarityView profile →

Dong Hum Yoon, MD

Colorectal Surgery (Proctology) (CMS) · Fullerton, CA

Shared published services
3 shared services · view billing descriptions
  • Diagnostic exam of anus using an endoscope (46600)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
67%Service-mix similarityView profile →

Samuel G. Eisenstein, MD

Colorectal Surgery (Proctology) · General Surgery (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Diagnostic exam of anus using an endoscope (46600)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
67%Service-mix similarityView profile →

Jose Carlos Muniz Castro, M.D.

Colorectal Surgery (Proctology) · General Surgery (CMS) · Rancho Mirage, CA

Shared published services
3 shared services · view billing descriptions
  • Diagnostic exam of anus using an endoscope (46600)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
67%Service-mix similarityView profile →

David Paul Magner, M.D.

Colorectal Surgery (Proctology) · General Surgery (CMS) · Beverly Hills, CA

Shared published services
3 shared services · view billing descriptions
  • Diagnostic exam of anus using an endoscope (46600)
  • 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 low level od decision making, if using time, 20 minutes or more (99213)
65%Service-mix similarityView profile →

Lorenc Malellari, MD

Colorectal Surgery (Proctology) (CMS) · Bakersfield, CA

Shared published services
3 shared services · view billing descriptions
  • Diagnostic exam of anus using an endoscope (46600)
  • 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 low level od decision making, if using time, 20 minutes or more (99213)
65%Service-mix similarityView profile →

Andrew Alan Shelton, M.D.

General Surgery (CMS) · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • Diagnostic exam of anus using an endoscope (46600)
  • 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 low level od decision making, if using time, 20 minutes or more (99213)
65%Service-mix similarityView profile →

Kurt Allan Melstrom, MD

Colorectal Surgery (Proctology) (CMS) · Glendora, CA

Shared published services
3 shared services · view billing descriptions
  • Diagnostic exam of anus using an endoscope (46600)
  • 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 low level od decision making, if using time, 20 minutes or more (99213)
64%Service-mix similarityView profile →

David Koller

Colorectal Surgery (Proctology) (CMS) · Torrance, CA

Shared published services
3 shared services · view billing descriptions
  • Diagnostic exam of anus using an endoscope (46600)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
64%Service-mix similarityView profile →

Jennifer Jeanne Mcneil, M.D.

Colorectal Surgery (Proctology) (CMS) · Stockton, CA

Shared published services
3 shared services · view billing descriptions
  • Diagnostic exam of anus using an endoscope (46600)
  • 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 low level od decision making, if using time, 20 minutes or more (99213)
64%Service-mix similarityView 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 NPI 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.