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Compare the published Medicare service mix of Sudarshan Chatterjee, MD FACC with clinicians in the same registry specialty: Cardiovascular Disease (Cardiology) · Internal Medicine (CMS).

MONTCLAIR, CA · 10 milesEdit location
Within 10 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 · 10 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Larry C Chan, D.O.

Cardiovascular Disease (Cardiology) · Internal Medicine (CMS) · Upland, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Technetium tc-99m sestamibi, diagnostic, per study dose (A9500)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
74%Service-mix similarity~3.7 milesView profile →

Hammad Khan

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

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Technetium tc-99m sestamibi, diagnostic, per study dose (A9500)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
72%Service-mix similarity~3.7 milesView profile →

Roger Dennis Duber, DO

Cardiac Surgery · Cardiovascular Disease (Cardiology) (CMS) · Upland, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Technetium tc-99m sestamibi, diagnostic, per study dose (A9500)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
66%Service-mix similarity~3.7 milesView profile →

Naji Kandalaft, M.D.

Cardiovascular Disease (Cardiology) · Internal Medicine (CMS) · Glendora, CA

Shared published services
3 shared services · view billing descriptions
  • Technetium tc-99m sestamibi, diagnostic, per study dose (A9500)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
63%Service-mix similarity~10.0 milesView profile →

Bhavi Paresh Pandya, M.D.

Internal Medicine (CMS) · Pomona, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
54%Service-mix similarity~2.2 milesView profile →

Pramod Theetha Kariyanna, M.D.

Interventional Cardiology (CMS) · Pomona, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • 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)
53%Service-mix similarity~2.2 milesView profile →

Altaf Lutfe Ali, M.D.

Cardiovascular Disease (Cardiology) · Internal Medicine (CMS) · Chino, CA

Shared published services
3 shared services · view billing descriptions
  • Technetium tc-99m sestamibi, diagnostic, per study dose (A9500)
  • 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)
53%Service-mix similarity~4.3 milesView profile →

Shahdad Azmoon, M.D.

Cardiovascular Disease (Cardiology) · Internal Medicine (CMS) · Rancho Cucamonga, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
51%Service-mix similarity~6.4 milesView profile →

Nitanth Reddy Vangala, M.D.

Cardiovascular Disease (Cardiology) · Internal Medicine (CMS) · Pomona, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
50%Service-mix similarity~2.2 milesView profile →

Samit Bhatheja, MD

Cardiovascular Disease (Cardiology) · Interventional Cardiology (CMS) · Upland, 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)
  • 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 similarity~3.7 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.