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Compare the published Medicare service mix of Robert Hannahan, MD with clinicians in the same registry specialty: Anesthesiology.

AL · Exact areaEdit location

2024 published service data · 367 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

William P. Ware, Iii, D.O.

Anesthesiology · Montgomery, AL

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Injection of substance into lower spine canal using imaging guidance (62323)
66%Service-mix similarityView profile →

Brooke Bell

Anesthesiology · Birmingham, AL

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Testing for presence of drug, read by direct observation (80305)
63%Service-mix similarityView profile →

Aimee Helgen Walsh, MD

Anesthesiology · Mobile, AL

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Injection of substance into lower spine canal using imaging guidance (62323)
61%Service-mix similarityView profile →

Clayton Newell, MD

Anesthesiology · Huntsville, AL

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Injection of substance into lower spine canal using imaging guidance (62323)
60%Service-mix similarityView profile →

William Trent, MD

Anesthesiology · Mobile, AL

Shared published services
3 shared services · view billing descriptions
  • Injection of substance into lower spine canal using imaging guidance (62323)
  • Fluoroscopic guidance for needle placement (77002)
  • Injection of lower or sacral spine facet joint using imaging guidance, single level (64493)
56%Service-mix similarityView profile →

Sammie O'neal Searcy, MD

Anesthesiology · Dothan, AL

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Injection of substance into lower spine canal using imaging guidance (62323)
55%Service-mix similarityView profile →

Prentiss Lawson, M.D.

Anesthesiology · Birmingham, AL

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Injection of substance into lower spine canal using imaging guidance (62323)
49%Service-mix similarityView profile →

Glenn M Woods, MD

Anesthesiology · Opelika, AL

Shared published services
3 shared services · view billing descriptions
  • Injection of substance into lower spine canal using imaging guidance (62323)
  • Fluoroscopic guidance for needle placement (77002)
  • Injection of lower or sacral spine facet joint using imaging guidance, single level (64493)
47%Service-mix similarityView profile →

Matthew P Bennett, MD

Anesthesiology · Pell City, AL

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Injection of substance into lower spine canal using imaging guidance (62323)
  • Injection of lower or sacral spine facet joint using imaging guidance, single level (64493)
43%Service-mix similarityView profile →

Anthony Frederick Massoll, MD

Anesthesiology · Huntsville, AL

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Injection of substance into lower spine canal using imaging guidance (62323)
  • Injection of lower or sacral spine facet joint using imaging guidance, single level (64493)
42%Service-mix similarityView profile →

Hubert A Rodriguez, MD

Anesthesiology · Oxford, AL

Shared published services
3 shared services · view billing descriptions
  • Injection of substance into lower spine canal using imaging guidance (62323)
  • Injection of lower or sacral spine facet joint using imaging guidance, single level (64493)
  • Injection of lower or sacral spine facet joint using imaging guidance, second level (64494)
40%Service-mix similarityView profile →

Alethia Sellers

Anesthesiology · Birmingham, AL

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Injection of substance into lower spine canal using imaging guidance (62323)
39%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.