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Compare the published Medicare service mix of Karen Elisabeth Deffenbacher, M.D., PH.D. with clinicians in the same registry specialty: Cardiovascular Disease (Cardiology) · Internal Medicine · Interventional Cardiology (CMS).

IL · Exact areaEdit location

2024 published service data · 274 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

John J Lopez, MD

Cardiovascular Disease (Cardiology) · Internal Medicine · Interventional Cardiology (CMS) · Burr Ridge, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
82%Service-mix similarityView profile →

Fareed Moses Segundo Collado, MD

Adult Congenital Heart Disease (Achd) · Internal Medicine (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
81%Service-mix similarityView profile →

Hussam Suradi, M.D.

Cardiovascular Disease (Cardiology) · Internal Medicine · Interventional Cardiology (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
81%Service-mix similarityView profile →

Ankur Sethi, MD

Cardiovascular Disease (Cardiology) (CMS) · Oak Park, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
79%Service-mix similarityView profile →

Imran Ahmad, M.D.

Cardiovascular Disease (Cardiology) · Internal Medicine · Interventional Cardiology (CMS) · Winfield, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
78%Service-mix similarityView profile →

Keith H Benzuly, MD

Cardiovascular Disease (Cardiology) · Interventional Cardiology (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
78%Service-mix similarityView profile →

Laura J Davidson, M.D.

Specialty details in registry · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
78%Service-mix similarityView profile →

Prateek Sharma, MD

Cardiovascular Disease (Cardiology) · Interventional Cardiology (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
76%Service-mix similarityView profile →

Andrei M. Pop, M.D.

Cardiovascular Disease (Cardiology) · Internal Medicine · Interventional Cardiology (CMS) · Elk Grove Village, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
75%Service-mix similarityView profile →

Christina Kaye Anderson, M.D.

Internal Medicine · Interventional Cardiology (CMS) · Lake Forest, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
73%Service-mix similarityView profile →

Demetrios Doukas, D.O.

Cardiovascular Disease (Cardiology) (CMS) · Maywood, IL

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist (93458)
72%Service-mix similarityView profile →

Ranya N. Sweis, M.D.

Cardiovascular Disease (Cardiology) · Interventional Cardiology (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
72%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.