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Compare the published Medicare service mix of Brian Chang, D.O. with clinicians in the same registry specialty: Hospitalist · Internal Medicine (CMS).

LAS VEGAS, NV · Exact areaEdit location

2024 published service data · 33 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Karam Batieha, MD

Internal Medicine (CMS) · Las Vegas, NV

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
98%Service-mix similarityView profile →

Parker W Woody, D.O.

Internal Medicine (CMS) · Las Vegas, NV

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
97%Service-mix similarityView profile →

Haitham A Elconsul, M.D.

Hospitalist · Internal Medicine (CMS) · Las Vegas, NV

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
96%Service-mix similarityView profile →

Yekaterina Anatolyevna Khronusova, MD

Internal Medicine (CMS) · Las Vegas, NV

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
95%Service-mix similarityView profile →

Michael Kats, M.D.

Internal Medicine (CMS) · Las Vegas, NV

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
95%Service-mix similarityView profile →

Fema Baldonado Aquino, M.D.

Family Practice (CMS) · Las Vegas, NV

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
93%Service-mix similarityView profile →

Ifesinachi B Ndukwu, M.D.

Internal Medicine (CMS) · Las Vegas, NV

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
93%Service-mix similarityView profile →

Syed Zubin Hassan, MD

Internal Medicine (CMS) · Las Vegas, NV

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
90%Service-mix similarityView profile →

Carlos Chrysostome, MD

Hospitalist (CMS) · Las Vegas, NV

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
90%Service-mix similarityView profile →

Anoush Hripsime Tacvorian, DO

Hospitalist · Internal Medicine (CMS) · Las Vegas, NV

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
88%Service-mix similarityView profile →

Hayley Rousek

Family Practice · Hospitalist (CMS) · Las Vegas, NV

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
87%Service-mix similarityView profile →

Caitlyn Walters, DO

Internal Medicine (CMS) · Las Vegas, NV

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
85%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.