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Compare the published Medicare service mix of Dan Vaisman, M.D. with clinicians in the same registry specialty: Cardiovascular Disease.

ROUND ROCK, TX · Exact areaEdit location

2024 published service data · 13 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Shanti Nulu, MD

Cardiovascular Disease · Round Rock, 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)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)
77%Service-mix similarityView profile →

Sam Afshar, MD

Cardiovascular Disease · Round Rock, 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)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)
65%Service-mix similarityView profile →

Joseph M Szczytowski, DO

Cardiovascular Disease · Round Rock, 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)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)
60%Service-mix similarityView profile →

Aditi Shankar, MBBS

Cardiovascular Disease · Round Rock, TX

Shared published services
3 shared services · view billing descriptions
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)
  • Nuclear medicine studies of heart muscle at rest and with stress and spect (78452)
  • Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician (93018)
53%Service-mix similarityView profile →

Amy Butler Stancoven, MD

Cardiovascular Disease · Round Rock, 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)
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)
  • Nuclear medicine studies of heart muscle at rest and with stress and spect (78452)
52%Service-mix similarityView profile →

Thomas Childress Vinson, MD

Cardiovascular Disease · Round Rock, 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)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)
49%Service-mix similarityView profile →

Andrew Carl Kontak, MD

Cardiovascular Disease · Round Rock, 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)
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)
  • Nuclear medicine studies of heart muscle at rest and with stress and spect (78452)
48%Service-mix similarityView profile →

Jacobo Vazquez, M.D.

Cardiovascular Disease · Round Rock, 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)
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)
  • Nuclear medicine studies of heart muscle at rest and with stress and spect (78452)
47%Service-mix similarityView profile →

Henry S Lucid, MD

Cardiovascular Disease · Round Rock, 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)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)
44%Service-mix similarityView profile →

Leticia Castillo Kontak, MD

Cardiovascular Disease · Round Rock, 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)
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)
  • Nuclear medicine studies of heart muscle at rest and with stress and spect (78452)
42%Service-mix similarityView profile →

Muhammad Nabil, M.D

Cardiovascular Disease · Round Rock, TX

Shared published services
1 shared services · view billing descriptions
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)
37%Service-mix similarityView profile →

Jaime A Hernandez Montfort, M.D.

Cardiovascular Disease · Round Rock, 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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
27%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.