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Compare the published Medicare service mix of Chenchen Zhang, M.D. with clinicians in the same registry specialty: Critical Care (Intensivists) · Pulmonary Disease (CMS).

MD · Exact areaEdit location

2024 published service data · 216 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Benjamin T Demarco, MD

Internal Medicine · Pulmonary Disease (CMS) · Baltimore, MD

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)
  • Drainage of fluid from chest cavity with insertion of indwelling tube using imaging guidance (32557)
  • Aspiration of initial secretion of lung airway using an endoscope (31645)
67%Service-mix similarityView profile →

Ashutosh Sachdeva, MD

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Baltimore, MD

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)
  • Biopsy of lobe of lung using an endoscope, 1 lobe (31628)
  • Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 3 or more lymph nodes (31653)
65%Service-mix similarityView profile →

Angela Christine Argento, MD

Pulmonary Disease (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Aspiration of initial secretion of lung airway using an endoscope (31645)
  • Biopsy of lobe of lung using an endoscope, 1 lobe (31628)
  • Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 3 or more lymph nodes (31653)
61%Service-mix similarityView profile →

Matthew Schimmel

Pulmonary Disease (CMS) · Baltimore, MD

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)
  • Drainage of fluid from chest cavity with insertion of indwelling tube using imaging guidance (32557)
  • Aspiration of initial secretion of lung airway using an endoscope (31645)
59%Service-mix similarityView profile →

Andrew Demaio

Pulmonary Disease (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Aspiration of initial secretion of lung airway using an endoscope (31645)
  • Biopsy of lobe of lung using an endoscope, 1 lobe (31628)
  • Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 3 or more lymph nodes (31653)
59%Service-mix similarityView profile →

Jason Atticus Akulian, M.D.

Internal Medicine · Pulmonary Disease (CMS) · Baltimore, MD

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)
  • Biopsy of lobe of lung using an endoscope, 1 lobe (31628)
  • Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 3 or more lymph nodes (31653)
51%Service-mix similarityView profile →

Saiyad Aleem Sarkar, MD

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Biopsy of lobe of lung using an endoscope, 1 lobe (31628)
  • Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 3 or more lymph nodes (31653)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
49%Service-mix similarityView profile →

Peter Phillip Olivieri, M.D.

Critical Care (Intensivists) · Internal Medicine (CMS) · Glen Burnie, MD

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)
  • Biopsy of lobe of lung using an endoscope, 1 lobe (31628)
  • Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 3 or more lymph nodes (31653)
48%Service-mix similarityView profile →

Yashvir Sangwan, M.D

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Salisbury, MD

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)
  • Biopsy of lobe of lung using an endoscope, 1 lobe (31628)
  • Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 3 or more lymph nodes (31653)
48%Service-mix similarityView profile →

Hitesh Batra, MD

Pulmonary Disease (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Aspiration of initial secretion of lung airway using an endoscope (31645)
  • Biopsy of lobe of lung using an endoscope, 1 lobe (31628)
  • Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 3 or more lymph nodes (31653)
45%Service-mix similarityView profile →

Hans Joo Lee, MD

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Biopsy of lobe of lung using an endoscope, 1 lobe (31628)
  • Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 3 or more lymph nodes (31653)
  • Needle biopsy of windpipe cartilage, airway, and/or lung using an endoscope (31629)
45%Service-mix similarityView profile →

Pardeep Masuta, M.D.

Pulmonary Disease (CMS) · Salisbury, MD

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)
  • Drainage of fluid from chest cavity with insertion of indwelling tube using imaging guidance (32557)
  • Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 3 or more lymph nodes (31653)
42%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.