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Compare the published Medicare service mix of Robert Hamburger, D.O. with clinicians in the same registry specialty: Cardiovascular Disease.

GAINESVILLE, FL · Exact areaEdit location

2024 published service data · 26 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

John William Petersen, MD

Cardiovascular Disease · Gainesville, FL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)
  • Ultrasound of heart, follow-up (93308)
  • Ultrasound of heart blood flow, valves and chambers, follow-up (93321)
83%Service-mix similarityView profile →

Anita Wokhlu, MD

Cardiovascular Disease · Gainesville, FL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)
  • Ultrasound of heart, follow-up (93308)
  • Nuclear medicine studies of heart muscle at rest and with stress and spect (78452)
78%Service-mix similarityView profile →

Hussain Khalid

Cardiovascular Disease · Gainesville, FL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)
  • Ultrasound of heart, follow-up (93308)
  • Nuclear medicine studies of heart muscle at rest and with stress and spect (78452)
67%Service-mix similarityView profile →

Carsten M. Schmalfuss, MD

Cardiovascular Disease · Gainesville, FL

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)
64%Service-mix similarityView profile →

Jorge Alberto Fernandez, MD

Cardiovascular Disease · Gainesville, FL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)
  • Ultrasound of heart, follow-up (93308)
  • Nuclear medicine studies of heart muscle at rest and with stress and spect (78452)
60%Service-mix similarityView profile →

Dhaval Naik, M.D.

Cardiovascular Disease · Gainesville, FL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)
  • Ultrasound of heart, follow-up (93308)
  • Nuclear medicine studies of heart muscle at rest and with stress and spect (78452)
59%Service-mix similarityView profile →

Nashmil Hashemi

Cardiovascular Disease · Gainesville, FL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)
  • Ultrasound of heart blood flow, valves and chambers, follow-up (93321)
  • Ultrasound of heart with color-depicted blood flow, rate and valve function (93325)
55%Service-mix similarityView profile →

Shawn Simek, M.D.

Cardiovascular Disease · Gainesville, FL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)
  • Ultrasound of heart, follow-up (93308)
  • Nuclear medicine studies of heart muscle at rest and with stress and spect (78452)
55%Service-mix similarityView profile →

Erin Nichole Mattocks, DO

Cardiovascular Disease · Gainesville, FL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)
  • Ultrasound of heart, follow-up (93308)
  • Nuclear medicine studies of heart muscle at rest and with stress and spect (78452)
39%Service-mix similarityView profile →

Ann Truong Tong, MD

Cardiovascular Disease · Gainesville, FL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)
  • Ultrasound of heart, follow-up (93308)
  • Nuclear medicine studies of heart muscle at rest and with stress and spect (78452)
38%Service-mix similarityView profile →

Andrew Lawrence Smock, MD

Cardiovascular Disease · Gainesville, FL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)
  • Ultrasound of heart, follow-up (93308)
  • Nuclear medicine studies of heart muscle at rest and with stress and spect (78452)
35%Service-mix similarityView profile →

Daniel Vanroy, MD

Cardiovascular Disease · Gainesville, FL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)
  • Ultrasound of heart, follow-up (93308)
  • Nuclear medicine studies of heart muscle at rest and with stress and spect (78452)
35%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.