A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

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

SAINT LOUIS, MO · Exact areaEdit location

2024 published service data · 316 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Jennifer Denise Hults, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
100%Service-mix similarityView profile →

Elizabeth Ann Hughett, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
100%Service-mix similarityView profile →

Hilary Ann Heeger, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
100%Service-mix similarityView profile →

Katherine Miles Pozzo, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
100%Service-mix similarityView profile →

Melissa Frances Shultz, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
100%Service-mix similarityView profile →

Emily Elizabeth Good, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
100%Service-mix similarityView profile →

Christine Elizabeth Nance, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
100%Service-mix similarityView profile →

Ann M Welty, CRNA

Specialty details in registry · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
99%Service-mix similarityView profile →

Christina M Hanselman, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
99%Service-mix similarityView profile →

Jason P. Shaffer, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
99%Service-mix similarityView profile →

Alexandra Darlene Schatz, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
99%Service-mix similarityView profile →

Luther Mieser

Certified Registered Nurse Anesthetist (Crna) (CMS) · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
99%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.