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Compare the published Medicare service mix of Keith Alan Lopatka, M.D. with clinicians in the same registry specialty: Dermatology.

IL · Exact areaEdit location

2024 published service data · 404 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Jeffrey S Altman, MD

Dermatology · Woodstock, 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)
  • Destruction of precancer skin growth, 2-14 growths (17003)
  • Ultrasonic guidance for placement of radiation therapy fields (G6001)
81%Service-mix similarityView profile →

Cheuk W Yung, M.D.

Dermatology · Orland Park, 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)
  • Destruction of precancer skin growth, 2-14 growths (17003)
  • Ultrasonic guidance for placement of radiation therapy fields (G6001)
80%Service-mix similarityView profile →

Adrienne Schupbach, M.D.

Dermatology · Bloomington, 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)
  • Destruction of precancer skin growth, 2-14 growths (17003)
  • Ultrasonic guidance for placement of radiation therapy fields (G6001)
78%Service-mix similarityView profile →

Mathew Joseph

Dermatology · Maywood, 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)
  • Destruction of precancer skin growth, 2-14 growths (17003)
  • Ultrasonic guidance for placement of radiation therapy fields (G6001)
78%Service-mix similarityView profile →

Christine Kay Sickles, D.O.

Dermatology · Orland Park, 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)
  • Destruction of precancer skin growth, 2-14 growths (17003)
  • Ultrasonic guidance for placement of radiation therapy fields (G6001)
76%Service-mix similarityView profile →

Rania Agha, M.D.

Dermatology · Oakbrook Terrace, 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)
  • Destruction of precancer skin growth, 2-14 growths (17003)
  • Ultrasonic guidance for placement of radiation therapy fields (G6001)
74%Service-mix similarityView profile →

Shirley Jean-Baptiste, M.D.

Dermatology · Orland Park, 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)
  • Destruction of precancer skin growth, 2-14 growths (17003)
  • Ultrasonic guidance for placement of radiation therapy fields (G6001)
73%Service-mix similarityView profile →

Matthew Nathan Harris, M.D.

Dermatology · Hinsdale, 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)
  • Destruction of precancer skin growth, 2-14 growths (17003)
  • Ultrasonic guidance for placement of radiation therapy fields (G6001)
73%Service-mix similarityView profile →

Susan Schaberg, M.D.

Dermatology · Carbondale, 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)
  • Destruction of precancer skin growth, 2-14 growths (17003)
  • Ultrasonic guidance for placement of radiation therapy fields (G6001)
71%Service-mix similarityView profile →

Vikram J Khanna, MD

Dermatology · Algonquin, 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)
  • Destruction of precancer skin growth, 2-14 growths (17003)
  • Ultrasonic guidance for placement of radiation therapy fields (G6001)
71%Service-mix similarityView profile →

Sonya Kenkare, M.D.

Dermatology · 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)
  • Destruction of precancer skin growth, 2-14 growths (17003)
  • Ultrasonic guidance for placement of radiation therapy fields (G6001)
70%Service-mix similarityView profile →

Cole David Lundquist, MD

Dermatology · Park Ridge, 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)
  • Destruction of precancer skin growth, 2-14 growths (17003)
  • Ultrasonic guidance for placement of radiation therapy fields (G6001)
70%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.