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

BALTIMORE, MD · Exact areaEdit location

2024 published service data · 67 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Katherine Hom Chin

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

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)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Critical care, first 30-74 minutes (99291)
73%Service-mix similarityView profile →

Eileen Zhuang

Pulmonary Disease (CMS) · Baltimore, MD

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)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Critical care, first 30-74 minutes (99291)
60%Service-mix similarityView profile →

Renee K. Dixon, M.D.

Pulmonary Disease (CMS) · Baltimore, MD

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)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
58%Service-mix similarityView profile →

Blaine F Kenaa, MD

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

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)
  • Critical care, first 30-74 minutes (99291)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
57%Service-mix similarityView profile →

Ellen Marciniak, MD

Pulmonary Disease (CMS) · Baltimore, MD

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)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Critical care, first 30-74 minutes (99291)
56%Service-mix similarityView profile →

Sean Agbor-Enoh, M.D., PHD

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

Shared published services
2 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)
  • Critical care, first 30-74 minutes (99291)
55%Service-mix similarityView profile →

Jeffrey D. Hasday, M.D.

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

Shared published services
2 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)
  • Critical care, first 30-74 minutes (99291)
55%Service-mix similarityView profile →

Sarah Ray Williams, M.D.

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

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)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Critical care, first 30-74 minutes (99291)
54%Service-mix similarityView profile →

Nirav G. Shah, MD

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

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)
  • Critical care, first 30-74 minutes (99291)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
54%Service-mix similarityView profile →

Samar Bharat Mehta, M.D., PH.D.

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

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Insertion of non-tunneled central venous tube for infusion (5 years or older) (36556)
  • Emergent insertion of breathing tube into windpipe using an endoscope (31500)
53%Service-mix similarityView profile →

Jennifer Y So, M.D.

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

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)
  • Critical care, first 30-74 minutes (99291)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
51%Service-mix similarityView profile →

Edward James Britt, M.D.

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

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)
  • Test to determine lung volumes using sensors (94726)
51%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.