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Compare the published Medicare service mix of David Keebok Warren, M.D. with clinicians in the same registry specialty: Hospitalist · Infectious Disease · Internal Medicine (CMS).

MESA, AZ · Exact areaEdit location

2024 published service data · 52 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Waqas Ahmad Qamar, MD

Hospitalist (CMS) · Mesa, AZ

Shared published services
3 shared services · view billing descriptions
  • Advance care planning, first 30 minutes (99497)
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)
88%Service-mix similarityView profile →

Shahnaz Mazdeh, MD

Internal Medicine (CMS) · Mesa, AZ

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)
  • Hospital discharge day management, 30 minutes or less (99238)
55%Service-mix similarityView profile →

Liza Anwar, D.O

Hospitalist (CMS) · Mesa, AZ

Shared published services
3 shared services · view billing descriptions
  • Advance care planning, first 30 minutes (99497)
  • 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)
54%Service-mix similarityView profile →

Christopher Atwell, M.D.

Specialty details in registry · Mesa, AZ

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)
  • Hospital discharge day management, 30 minutes or less (99238)
54%Service-mix similarityView profile →

Carmen Maria Torres, MD

Internal Medicine (CMS) · Mesa, AZ

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)
  • Hospital discharge day management, 30 minutes or less (99238)
53%Service-mix similarityView profile →

Sandeep Nagre, MD

Internal Medicine (CMS) · Mesa, AZ

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)
  • Hospital discharge day management, 30 minutes or less (99238)
53%Service-mix similarityView profile →

Paramvir Singh, M.D

Hospitalist · Internal Medicine (CMS) · Mesa, AZ

Shared published services
3 shared services · view billing descriptions
  • Advance care planning, first 30 minutes (99497)
  • 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)
53%Service-mix similarityView profile →

Barjinder B Bhullar, MD

Hospitalist · Internal Medicine (CMS) · Mesa, AZ

Shared published services
3 shared services · view billing descriptions
  • Advance care planning, first 30 minutes (99497)
  • 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)
53%Service-mix similarityView profile →

Katelyn Rheault, M.D.

Hospitalist · Internal Medicine (CMS) · Mesa, AZ

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)
  • Hospital discharge day management, 30 minutes or less (99238)
51%Service-mix similarityView profile →

Hemanthkumar Athiraman, MD

Specialty details in registry · Mesa, AZ

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)
  • Hospital discharge day management, 30 minutes or less (99238)
51%Service-mix similarityView profile →

Donald Joseph Velarde, M.D.

Hospitalist (CMS) · Mesa, AZ

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)
  • Hospital discharge day management, 30 minutes or less (99238)
48%Service-mix similarityView profile →

Bassil Bayazed, MD

Hospitalist · Internal Medicine (CMS) · Mesa, AZ

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)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
48%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.