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Compare the published Medicare service mix of Walt Marquardt, MD with clinicians in the same registry specialty: Interventional Cardiology (CMS).

SACRAMENTO, CA · Exact areaEdit location

2024 published service data · 10 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Joseph A Kozina, MD

Interventional Cardiology (CMS) · Sacramento, CA

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)
75%Service-mix similarityView profile →

Sailesh N Shah, M.D.

Interventional Cardiology (CMS) · Sacramento, CA

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)
  • Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch (92928)
  • Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist (93458)
45%Service-mix similarityView profile →

Surabhi Madhwal Atreja, M.D

Cardiovascular Disease (Cardiology) (CMS) · Sacramento, CA

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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch (92928)
43%Service-mix similarityView profile →

Pei-Hsiu Huang, M.D.

Interventional Cardiology (CMS) · Sacramento, CA

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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch (92928)
42%Service-mix similarityView profile →

David K Roberts, M.D

Cardiovascular Disease (Cardiology) · Interventional Cardiology (CMS) · Sacramento, CA

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)
  • Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch (92928)
  • Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist (93458)
39%Service-mix similarityView profile →

Manoj Kesarwani, M.D.

Cardiovascular Disease (Cardiology) · Interventional Cardiology (CMS) · Sacramento, CA

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)
  • Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch (92928)
  • Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist (93458)
33%Service-mix similarityView profile →

Inder M Singh, MD, MS

Cardiovascular Disease (Cardiology) · Internal Medicine · Interventional Cardiology (CMS) · Sacramento, CA

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)
27%Service-mix similarityView profile →

Nicholas N Dzebolo, MD

Diagnostic Radiology · Undefined Physician Type (Specify) (CMS) · Sacramento, CA

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)
14%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.