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Compare the published Medicare service mix of Ching-Yen Joseph Chang, MD with clinicians in the same registry specialty: Otolaryngology (CMS).

TX · Exact areaEdit location

2024 published service data · 23 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Carlos Robert Esquivel, M.D.

Otolaryngology (CMS) · San Antonio, TX

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)
  • Exam of ear using a microscope (92504)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
55%Service-mix similarityView profile →

Maria Geraldine Zuniga Manrique, M.D.

Otolaryngology (CMS) · San Antonio, TX

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)
  • Exam of ear using a microscope (92504)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
54%Service-mix similarityView profile →

Dayton L Young, MD

Otolaryngology (CMS) · League City, TX

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)
  • Exam of ear using a microscope (92504)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
53%Service-mix similarityView profile →

Jonathan Choi, MD

Otolaryngology (CMS) · Austin, TX

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)
  • Exam of ear using a microscope (92504)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
51%Service-mix similarityView profile →

James Vardaman Kemper, M.D.

Otolaryngology (CMS) · Austin, TX

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)
  • Exam of ear using a microscope (92504)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
50%Service-mix similarityView profile →

Chester Lee Strunk, M.D.

Otolaryngology (CMS) · Webster, TX

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)
  • Diagnostic exam of nasal passages using an endoscope (31231)
46%Service-mix similarityView profile →

Marc-Elie Nader, MD

Otolaryngology (CMS) · Houston, TX

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)
  • Exam of ear using a microscope (92504)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
46%Service-mix similarityView profile →

Tomoko Makishima, MD

Otolaryngology (CMS) · Galveston, TX

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)
  • Exam of ear using a microscope (92504)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
46%Service-mix similarityView profile →

Susan Marenda King, M.D.

Otolaryngology (CMS) · San Antonio, TX

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)
  • Exam of ear using a microscope (92504)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
45%Service-mix similarityView profile →

Hitomi Sakano, MD, PHD

Otolaryngology (CMS) · Dallas, TX

Shared published services
2 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)
45%Service-mix similarityView profile →

Mark Lynn Nichols, MD

Otolaryngology (CMS) · Houston, TX

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)
  • Exam of ear using a microscope (92504)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
44%Service-mix similarityView profile →

Vivian Kaul, MD

Otolaryngology (CMS) · Houston, TX

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)
  • Exam of ear using a microscope (92504)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
44%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.