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Compare the published Medicare service mix of Jason L Peng, MD with clinicians in the same registry specialty: Critical Care (Intensivists) · Pulmonary Disease · Sleep Medicine (CMS).

CHICAGO, IL · Exact areaEdit location

2024 published service data · 13 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Gorav Ved Sharma, MD

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Chicago, IL

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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
62%Service-mix similarityView profile →

James A Rowley, MD

Pulmonary Disease · Sleep Medicine (CMS) · Chicago, IL

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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
40%Service-mix similarityView profile →

John Martin Coleman, M.D.

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease · Sleep Medicine (CMS) · Chicago, IL

Shared published services
2 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)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
32%Service-mix similarityView profile →

Carmen Amelia Taype-Roberts, M.D., PH.D.

Pulmonary Disease (CMS) · Chicago, IL

Shared published services
2 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)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
27%Service-mix similarityView profile →

Julie Marie Neborak, M.D.

Sleep Medicine (CMS) · Chicago, IL

Shared published services
2 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)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
25%Service-mix similarityView profile →

Paul Chung, DO

Internal Medicine · Pulmonary Disease · Sleep Medicine (CMS) · Chicago, IL

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
22%Service-mix similarityView profile →

Lindsay Mccullough, M.D.

Internal Medicine · Sleep Medicine (CMS) · Chicago, IL

Shared published services
1 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)
18%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.