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Compare the published Medicare service mix of David William O'brian, D.P.M. with clinicians in the same registry specialty: Podiatrist.

STREAMWOOD, 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 · 19 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Jennifer Irene Kirchens, D.P.M.

Podiatrist · Arlington Heights, IL

Shared published services
3 shared services · view billing descriptions
  • Removal of fingernails or toenails, 6 or more nails (11721)
  • 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 low level of medical decision making, if using time, 30 minutes or more (99203)
80%Service-mix similarity~9.8 milesView profile →

Brian Howard Dunn, DPM

Podiatrist · Bartlett, IL

Shared published services
3 shared services · view billing descriptions
  • Removal of fingernails or toenails, 6 or more nails (11721)
  • 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 low level of medical decision making, if using time, 30 minutes or more (99203)
80%Service-mix similarity~3.5 milesView profile →

Faraz Imtiaz Haque, DPM

Podiatrist · Bloomingdale, IL

Shared published services
3 shared services · view billing descriptions
  • Removal of fingernails or toenails, 6 or more nails (11721)
  • 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 low level of medical decision making, if using time, 30 minutes or more (99203)
74%Service-mix similarity~6.9 milesView profile →

Amanda Bozich, D.P.M.

Podiatrist · Elk Grove Village, IL

Shared published services
3 shared services · view billing descriptions
  • Removal of fingernails or toenails, 6 or more nails (11721)
  • 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 low level of medical decision making, if using time, 30 minutes or more (99203)
71%Service-mix similarity~9.1 milesView profile →

S Khalid Husain, DPM

Podiatrist · Arlington Heights, IL

Shared published services
3 shared services · view billing descriptions
  • Removal of fingernails or toenails, 6 or more nails (11721)
  • 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 low level of medical decision making, if using time, 30 minutes or more (99203)
67%Service-mix similarity~9.8 milesView profile →

Mark Ryerson

Podiatrist · Arlington Hts, IL

Shared published services
3 shared services · view billing descriptions
  • Removal of fingernails or toenails, 6 or more nails (11721)
  • 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)
63%Service-mix similarity~9.8 milesView profile →

Paul R Lucas, DPM, FACFAS

Podiatrist · Elk Grove Village, 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 low level of medical decision making, if using time, 30 minutes or more (99203)
  • X-ray of foot, minimum of 3 views (73630)
62%Service-mix similarity~9.1 milesView profile →

Steven Jasonowicz, D.P.M

Podiatrist · Barrington, IL

Shared published services
3 shared services · view billing descriptions
  • Removal of fingernails or toenails, 6 or more nails (11721)
  • 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 low level of medical decision making, if using time, 30 minutes or more (99203)
61%Service-mix similarity~9.7 milesView profile →

Jennifer M. Felske, D.P.M.

Podiatrist · Carol Stream, 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 low level of medical decision making, if using time, 30 minutes or more (99203)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
60%Service-mix similarity~7.4 milesView profile →

Erwin Friedman, D.P.M.

Podiatrist · Elk Grove Village, 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)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
57%Service-mix similarity~9.1 milesView profile →

Sutpal Singh

Podiatrist · Hoffman Estates, IL

Shared published services
2 shared services · view billing descriptions
  • Removal of fingernails or toenails, 6 or more nails (11721)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
57%Service-mix similarity~3.7 milesView profile →

Kevin M Massard, D.P.M.

Podiatrist · Bartlett, IL

Shared published services
3 shared services · view billing descriptions
  • Removal of fingernails or toenails, 6 or more nails (11721)
  • 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 low level of medical decision making, if using time, 30 minutes or more (99203)
57%Service-mix similarity~3.5 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.