Ignatius Tang, M.D. / Similar service patterns A DIFFERENT WAY TO EXPLORE Similar work. Compare the published Medicare service mix of Ignatius Tang, M.D. with clinicians in the same registry specialty: Nephrology (CMS).
CHICAGO, IL · Exact area Edit location
2024 published service data · 127 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.
Internal Medicine · Nephrology (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) Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214) Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232) Nephrology (CMS) · Chicago, IL
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) 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) Nephrology (CMS) · Chicago, IL
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) 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) Nephrology (CMS) · Chicago, IL
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) 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) Internal Medicine · Nephrology (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) Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214) Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232) General Practice · Nephrology (CMS) · Chicago, IL
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) 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) General Practice · Nephrology (CMS) · Chicago, IL
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) 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) Internal Medicine · Nephrology (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) Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214) Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232) Nephrology (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) Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214) Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232) Internal Medicine · Nephrology (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) Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214) Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232) Internal Medicine · Nephrology (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) Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214) Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232) Nephrology (CMS) · Chicago, IL
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) Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232) 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.