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Compare the published Medicare service mix of Zahra Alsultan, MD with clinicians in the same registry specialty: Hospice/Palliative Care (CMS).

IL · Exact areaEdit location

2024 published service data · 51 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Zachary Scott Hildner, DO

Hospice/Palliative Care (CMS) · Geneva, IL

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Advance care planning, first 30 minutes (99497)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
60%Service-mix similarityView profile →

James M. Mcgrath, DO

Hospice/Palliative Care (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Advance care planning, first 30 minutes (99497)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
59%Service-mix similarityView profile →

Mohammed Ilyas Ahmed Khan, M.D.,

Hospice/Palliative Care · Internal Medicine (CMS) · Rockford, IL

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
58%Service-mix similarityView profile →

Shawna O'reilly, D.O.

Hospice/Palliative Care · Neurology (CMS) · Barrington, IL

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Advance care planning, first 30 minutes (99497)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
56%Service-mix similarityView profile →

Eric Nathan Shepard, MD

Hospice/Palliative Care · Internal Medicine (CMS) · Geneva, IL

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
53%Service-mix similarityView profile →

Waqar Mian, M.D.

Hospice/Palliative Care · Internal Medicine (CMS) · Burbank, IL

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Advance care planning, first 30 minutes (99497)
52%Service-mix similarityView profile →

Roman O Kozyckyj, MD

Specialty details in registry · Burbank, IL

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Advance care planning, first 30 minutes (99497)
51%Service-mix similarityView profile →

Kristi Michelle Gillette, DO

Internal Medicine (CMS) · Quincy, IL

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Advance care planning, first 30 minutes (99497)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
51%Service-mix similarityView profile →

Bridget Agnes Gulling, M.D.

Hospice/Palliative Care (CMS) · Winfield, IL

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
51%Service-mix similarityView profile →

Michael Sigman, MD

Hospice/Palliative Care · Internal Medicine (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Advance care planning, first 30 minutes (99497)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
48%Service-mix similarityView profile →

Wilfredo Jose Romero Ubillus, M.D.

Specialty details in registry · Oak Park, IL

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Advance care planning, first 30 minutes (99497)
48%Service-mix similarityView profile →

Komal D'souza Zacharia, M.D.

Geriatric Medicine · Hospice/Palliative Care (CMS) · Lake Forest, IL

Shared published services
3 shared services · view billing descriptions
  • Advance care planning, first 30 minutes (99497)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
48%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.