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Compare the published Medicare service mix of John Coblentz, 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.

Amanda Snow

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

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for x-ray or radiation therapy (01922)
  • Anesthesia for procedure to correct abnormal heart rhythm (00410)
  • Anesthesia for procedure for total knee joint replacement (01402)
62%Service-mix similarityView profile →

Nancy Francine Chabek, CRNA

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

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Anesthesia for x-ray or radiation therapy (01922)
  • Anesthesia for procedure to assess heart electrical activity (00537)
58%Service-mix similarityView profile →

Colleen Storrie-Gaul

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

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for x-ray on artery of brain, heart, or chest (01926)
  • Anesthesia for x-ray or radiation therapy (01922)
58%Service-mix similarityView profile →

Christina Anne Montes, 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 x-ray or radiation therapy (01922)
56%Service-mix similarityView profile →

Virginia Ruth Rudd, RN, ANP, 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 x-ray or radiation therapy (01922)
56%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 other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Anesthesia for procedure to assess heart electrical activity (00537)
54%Service-mix similarityView profile →

Brandon Zed Hendrix, CRNA

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

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for x-ray or radiation therapy (01922)
  • Anesthesia for procedure to assess heart electrical activity (00537)
53%Service-mix similarityView profile →

Joel Alexander Johnson, CRNA

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

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for x-ray on artery of brain, heart, or chest (01926)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Anesthesia for procedure to assess heart electrical activity (00537)
50%Service-mix similarityView profile →

Sarah Elizabeth Lee, 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 x-ray or radiation therapy (01922)
47%Service-mix similarityView profile →

Pamela Johnston Vossler, 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 x-ray or radiation therapy (01922)
46%Service-mix similarityView profile →

Ellen Marie Ferrell, 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 injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01938)
46%Service-mix similarityView profile →

Lisa Renae Lee, 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 procedure to assess heart electrical activity (00537)
46%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.