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Compare the published Medicare service mix of Wayne C Williamson, MD with clinicians in the same registry specialty: Geriatric Medicine · Internal Medicine (CMS).

CHICAGO, IL · Exact areaEdit location

2024 published service data · 33 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Megan Huisingh-Scheetz

Geriatric Medicine · Internal Medicine (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)
38%Service-mix similarityView profile →

Amelia M Conte-Russian, M.D.

Internal Medicine (CMS) · Chicago, IL

Shared published services
2 shared services · view billing descriptions
  • Chronic care management services for two or more chronic conditions, first 30 minutes provided personally by health care professional, per calendar month (99491)
  • Physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician or allow (G0181)
34%Service-mix similarityView profile →

Alexandra Petrakos, MD

Geriatric Medicine · Internal Medicine (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
30%Service-mix similarityView profile →

Eliana Geller

Geriatric Medicine · Internal Medicine (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
28%Service-mix similarityView profile →

Ricardo Machado, MD

Geriatric Medicine · Internal Medicine (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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
26%Service-mix similarityView profile →

Sara M Bradley, MD

General Practice · Geriatric Medicine · Internal Medicine (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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
22%Service-mix similarityView profile →

Ann C Allie, M.D.

Geriatric Medicine · Internal Medicine (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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
20%Service-mix similarityView profile →

Donald A. Jurivich

Geriatric Medicine · Internal Medicine (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)
20%Service-mix similarityView profile →

Chandni Hitesh Patel, M.D.

Geriatric Medicine · Internal Medicine (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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
20%Service-mix similarityView profile →

Thomas James Haferkamp, MD

Geriatric Medicine (CMS) · Chicago, IL

Shared published services
1 shared services · view billing descriptions
  • Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)
19%Service-mix similarityView profile →

Erika Danielle Hutz, DO

Geriatric Medicine · Internal Medicine (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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
18%Service-mix similarityView profile →

Samantha Ikeda Ing

Geriatric Medicine (CMS) · Chicago, IL

Shared published services
1 shared services · view billing descriptions
  • Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)
18%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.