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Compare the published Medicare service mix of Lou Anne P Zibas, MD with clinicians in the same registry specialty: Critical Care (Intensivists) · Pulmonary Disease (CMS).

KNOXVILLE, TN · Exact areaEdit location

2024 published service data · 50 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Walter M Zibas, MD

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Knoxville, TN

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, 30 minutes or less (99238)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
83%Service-mix similarityView profile →

Michael Dean Brunson, MD

Internal Medicine · Pulmonary Disease (CMS) · Knoxville, TN

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, 30 minutes or less (99238)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
79%Service-mix similarityView profile →

Aaron L Rittgers, MD

Internal Medicine (CMS) · Knoxville, TN

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, 30 minutes or less (99238)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
79%Service-mix similarityView profile →

Jaideep Sood, MD

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Knoxville, TN

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
76%Service-mix similarityView profile →

Kunal Gada, MD

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Knoxville, TN

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, 30 minutes or less (99238)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
62%Service-mix similarityView profile →

Corey Cudzilo, M.D.

Pulmonary Disease (CMS) · Knoxville, TN

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
58%Service-mix similarityView profile →

Sunil Govind Chulani, M.D.

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Knoxville, TN

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, 30 minutes or less (99238)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
55%Service-mix similarityView profile →

Allen Carmichael Smith, MD

Internal Medicine · Pulmonary Disease (CMS) · Knoxville, TN

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
53%Service-mix similarityView profile →

Ibrahim Ziad Jamal Haddad, MD

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Knoxville, TN

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
52%Service-mix similarityView profile →

Jayen M Bhakta, MD

Critical Care (Intensivists) · Internal Medicine (CMS) · Knoxville, TN

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
49%Service-mix similarityView profile →

Spencer Pugh, M.D.

Pulmonary Disease (CMS) · Knoxville, TN

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, 30 minutes or less (99238)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
47%Service-mix similarityView profile →

John F Morrison, D.O.

Internal Medicine · Pulmonary Disease (CMS) · Knoxville, TN

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
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.