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Compare the published Medicare service mix of Henry Albert Chen, M.D. with clinicians in the same registry specialty: Cardiac Electrophysiology · Cardiovascular Disease (Cardiology) (CMS).

SAN PABLO, CA · 25 milesEdit location
Within 25 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 21 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Anurag Gupta, M.D.

Cardiac Electrophysiology · Cardiovascular Disease (Cardiology) (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Programming of dual lead pacemaker system (93280)
52%Service-mix similarity~17.3 milesView profile →

Vasanth Vedantham, M.D., PH.D.

Cardiovascular Disease (Cardiology) · Internal Medicine (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Programming of dual lead pacemaker system (93280)
51%Service-mix similarity~15.9 milesView profile →

Saket Sanghai, MD

Cardiac Electrophysiology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Programming of dual lead pacemaker system (93280)
50%Service-mix similarity~13.3 milesView profile →

Christopher Henry Swan, M.D.

Cardiac Electrophysiology · Cardiovascular Disease (Cardiology) (CMS) · Concord, CA

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Programming of dual lead pacemaker system (93280)
50%Service-mix similarity~16.4 milesView profile →

Randall J. Lee, M.D.

Cardiovascular Disease (Cardiology) · Internal Medicine (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Programming of dual lead pacemaker system (93280)
47%Service-mix similarity~15.9 milesView profile →

Rachita Neha Pallavi Navara, MD, FACC, FHRS

Cardiovascular Disease (Cardiology) (CMS) · Daly City, 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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
45%Service-mix similarity~21.7 milesView profile →

Carleton Thomas Nibley, M.D.

Cardiac Electrophysiology · Cardiovascular Disease (Cardiology) (CMS) · Concord, CA

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Programming of dual lead pacemaker system (93280)
45%Service-mix similarity~16.4 milesView profile →

Jeffrey E Olgin, M.D.

Cardiovascular Disease (Cardiology) (CMS) · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
43%Service-mix similarity~15.9 milesView profile →

Edward Gerstenfeld, MD

Cardiovascular Disease (Cardiology) (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Programming of dual lead pacemaker system (93280)
42%Service-mix similarity~15.9 milesView profile →

Joshua David Moss, M.D.

Cardiovascular Disease (Cardiology) (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Programming of dual lead pacemaker system (93280)
42%Service-mix similarity~15.9 milesView profile →

Thomas A Dewland, M.D.

Cardiac Electrophysiology · Internal Medicine (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Programming of dual lead pacemaker system (93280)
42%Service-mix similarity~15.9 milesView profile →

Henry H Hsia, MD

Cardiac Electrophysiology · Cardiovascular Disease (Cardiology) · Internal Medicine (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Programming of dual lead pacemaker system (93280)
41%Service-mix similarity~15.9 milesView 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 approximate distance 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.