Gregory Zagaja / Similar service patterns A DIFFERENT WAY TO EXPLORE Similar work. Compare the published Medicare service mix of Gregory Zagaja with clinicians in the same registry specialty: General Surgery · Urology (CMS).
CHICAGO, IL · Exact area Edit location
2024 published service data · 65 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.
Urology (CMS) · Chicago, IL
Shared published services 3 shared services · view billing descriptions Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213) New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205) Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215) Urology (CMS) · Chicago, IL
Shared published services 3 shared services · view billing descriptions Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213) New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205) Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215) Urology (CMS) · Chicago, IL
Shared published services 3 shared services · view billing descriptions Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213) Telephone medical discussion with physician, 11-20 minutes (99442) Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214) Urology (CMS) · Chicago, IL
Shared published services 3 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) Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215) Removal of lymph nodes of both sides of pelvis using an endoscope (38571) Urology (CMS) · Chicago, IL
Shared published services 2 shared services · view billing descriptions Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213) Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214) Urology (CMS) · Chicago, IL
Shared published services 3 shared services · view billing descriptions Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213) New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205) Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215) Urology (CMS) · Chicago, IL
Shared published services 1 shared services · view billing descriptions Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213) Urology (CMS) · Chicago, IL
Shared published services 3 shared services · view billing descriptions Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213) New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205) Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215) Urology (CMS) · Chicago, IL
Shared published services 3 shared services · view billing descriptions Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213) New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205) Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215) Urology (CMS) · Chicago, IL
Shared published services 3 shared services · view billing descriptions Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213) Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215) Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214) Urology (CMS) · Chicago, IL
Shared published services 2 shared services · view billing descriptions Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213) Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214) Urology (CMS) · Chicago, IL
Shared published services 3 shared services · view billing descriptions Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213) Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215) Surgical removal of prostate and surrounding lymph nodes using an endoscope (55866) 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.