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

BRUNSWICK, GA · Exact areaEdit location

2024 published service data · 12 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Adam Wesley Harper, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Brunswick, GA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
  • Anesthesia for exam of colon using an endoscope (00812)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
67%Service-mix similarityView profile →

John D Porzio, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Brunswick, GA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
  • Anesthesia for exam of colon using an endoscope (00812)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
61%Service-mix similarityView profile →

Lorene Williams Oberlies

Certified Registered Nurse Anesthetist (Crna) (CMS) · Brunswick, GA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
  • Anesthesia for exam of colon using an endoscope (00812)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
60%Service-mix similarityView profile →

Allan Smith, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Brunswick, GA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
  • Anesthesia for exam of colon using an endoscope (00812)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
59%Service-mix similarityView profile →

Christina E Squires, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Brunswick, GA

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)
54%Service-mix similarityView profile →

Heather Cone Mitchell, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Brunswick, GA

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)
54%Service-mix similarityView profile →

Maxwell Donnan, DNP

Certified Registered Nurse Anesthetist (Crna) (CMS) · Brunswick, GA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
  • Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01938)
  • Anesthesia for nerve block and injection procedure, prone position (01992)
51%Service-mix similarityView profile →

Truett Auten, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Brunswick, GA

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)
46%Service-mix similarityView profile →

Lisa Herrington, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Brunswick, GA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
  • Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01938)
  • Anesthesia for nerve block and injection procedure, prone position (01992)
45%Service-mix similarityView profile →

Alaina Sharpton

Certified Registered Nurse Anesthetist (Crna) (CMS) · Brunswick, GA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
41%Service-mix similarityView profile →

Mallory Harris Johnson, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Brunswick, GA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
36%Service-mix similarityView profile →

Shannon Lynne Monteleone, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Brunswick, GA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
36%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.