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Compare the published Medicare service mix of Amber Krisitne Rettig, CRNA with clinicians in the same registry specialty: Certified Registered Nurse Anesthetist (Crna) (CMS).

LOS ANGELES, CA · Exact areaEdit location

2024 published service data · 161 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

So Hee Lee, DNAP

Certified Registered Nurse Anesthetist (Crna) (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
  • Anesthesia for other procedure on eye (00140)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
92%Service-mix similarityView profile →

Kyung Ha Kim

Certified Registered Nurse Anesthetist (Crna) (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
  • Anesthesia for other procedure on eye (00140)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
86%Service-mix similarityView profile →

Hanna Paik, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
  • Anesthesia for other procedure on eye (00140)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
86%Service-mix similarityView profile →

Janise Nguyen, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
  • Anesthesia for other procedure on eye (00140)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
85%Service-mix similarityView profile →

Anna Kim, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
  • Anesthesia for other procedure on eye (00140)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
84%Service-mix similarityView profile →

Cynthia Leannella Leaks, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
  • Anesthesia for other procedure on eye (00140)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
84%Service-mix similarityView profile →

Ali Lyons Abanobi, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
  • Anesthesia for other procedure on eye (00140)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
84%Service-mix similarityView profile →

Brianna Ortbals, CRNA, MSN

Certified Registered Nurse Anesthetist (Crna) (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
  • Anesthesia for other procedure on eye (00140)
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
83%Service-mix similarityView profile →

Kimberly Tang, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
  • Anesthesia for other procedure on eye (00140)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
83%Service-mix similarityView profile →

Krichelle Ann Larson, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
  • Anesthesia for other procedure on eye (00140)
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
81%Service-mix similarityView profile →

Tatum Dobalian

Certified Registered Nurse Anesthetist (Crna) (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
80%Service-mix similarityView profile →

Robert Briel, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
  • Anesthesia for other procedure on eye (00140)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
80%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.