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Compare the published Medicare service mix of Mario Rey Salazar, M.D. with clinicians in the same registry specialty: Surgery.

SCHAUMBURG, IL · 10 milesEdit location
Within 10 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 28 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Michaela Simcha Klein, D.O.

Surgery · Arlington Heights, IL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • Injection of chemical agent into single incompetent vein of leg using ultrasound guidance (36465)
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
71%Service-mix similarity~7.3 milesView profile →

Arnold P Robin, M.D.

Surgery · Arlington Heights, IL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • Ultrasonic guidance for needle placement (76942)
64%Service-mix similarity~7.3 milesView profile →

Hsin-Yi Chang, MD

Surgery · Barrington, IL

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
30%Service-mix similarity~8.6 milesView profile →

Daniel Robert Conway, M.D.

Surgery · Arlington Heights, IL

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
  • New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more (99202)
30%Service-mix similarity~5.4 milesView profile →

Robert Rao, M.D.

Surgery · Arlington Heights, IL

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
  • New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more (99202)
30%Service-mix similarity~5.4 milesView profile →

Areck A Ucuzian, M.D., PH.D.

Surgery · Arlington Heights, IL

Shared published services
2 shared services · view billing descriptions
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
28%Service-mix similarity~5.4 milesView profile →

Frank K. Liao, M.D.

Surgery · Hoffman Estates, IL

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
  • New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more (99202)
27%Service-mix similarity~0.4 milesView profile →

Barry S Rosen, M.D.

Surgery · Barrington, IL

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
25%Service-mix similarity~8.6 milesView profile →

Daniel T. Hoeltgen, M.D.

Surgery · Barrington, IL

Shared published services
2 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
24%Service-mix similarity~8.6 milesView profile →

Jonathan Wallace, M.D.

Surgery · Hoffman Estates, IL

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
22%Service-mix similarity~0.4 milesView profile →

Anthony Casini, DO

Surgery · Arlington Heights, IL

Shared published services
2 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
21%Service-mix similarity~5.4 milesView profile →

Jill Motl, MD

Surgery · Barrington, IL

Shared published services
2 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
20%Service-mix similarity~8.6 milesView 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 approximate distance 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.