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

GREENVILLE, SC · Exact areaEdit location

2024 published service data · 349 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Christopher Lawrence Chinault, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for procedure to assess heart electrical activity (00537)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Anesthesia for insertion of permanent heart pacemaker (00530)
71%Service-mix similarityView profile →

Nicholas James Frost

Certified Registered Nurse Anesthetist (Crna) (CMS) · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for x-ray on artery of brain, heart, or chest (01926)
  • Anesthesia for procedure on heart and large blood vessels (00560)
70%Service-mix similarityView profile →

Timothy Taylor Hobbes Fetterman

Certified Registered Nurse Anesthetist (Crna) (CMS) · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for x-ray on artery of brain, heart, or chest (01926)
  • Anesthesia for procedure on heart and large blood vessels (00560)
67%Service-mix similarityView profile →

Caroline Marvin Bedingfield, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for procedure to assess heart electrical activity (00537)
  • Anesthesia for x-ray on artery of brain, heart, or chest (01926)
  • Anesthesia for insertion of permanent heart pacemaker (00530)
65%Service-mix similarityView profile →

Kristen Kelly Nelson, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for procedure to assess heart electrical activity (00537)
  • Anesthesia for procedure on heart and large blood vessels (00560)
64%Service-mix similarityView profile →

Paul J Reilly, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for procedure to assess heart electrical activity (00537)
  • Anesthesia for procedure on heart and large blood vessels (00560)
62%Service-mix similarityView profile →

David Laurance Saari

Certified Registered Nurse Anesthetist (Crna) (CMS) · Greenville, SC

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for procedure to assess heart electrical activity (00537)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
61%Service-mix similarityView profile →

Ryan Clifton Calp, RN

Certified Registered Nurse Anesthetist (Crna) (CMS) · Greenville, SC

Shared published services
2 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for x-ray on artery of brain, heart, or chest (01926)
61%Service-mix similarityView profile →

Christopher Allan Pregnall, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Greenville, SC

Shared published services
2 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for procedure on heart and large blood vessels (00560)
58%Service-mix similarityView profile →

Rebecca Renae Deboer

Certified Registered Nurse Anesthetist (Crna) (CMS) · Greenville, SC

Shared published services
2 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for procedure on heart and large blood vessels (00560)
57%Service-mix similarityView profile →

Abhiram Shyamsundar Harohalli, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Greenville, SC

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for procedure to assess heart electrical activity (00537)
  • Anesthesia for insertion of permanent heart pacemaker (00530)
57%Service-mix similarityView profile →

Ashlyn Leigh Boyd, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Greenville, SC

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Anesthesia for insertion of permanent heart pacemaker (00530)
55%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.