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Compare the published Medicare service mix of Robby C Riddle, MD with clinicians in the same registry specialty: Family Medicine.

WA · Exact areaEdit location

2024 published service data · 500 eligible profiles compared. This search reached its 500-profile comparison limit, using NPI order. Narrow the location for a more focused comparison. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Stephanie L. Wheeler, M.D.

Family Medicine · Kennewick, WA

Shared published services
1 shared services · view billing descriptions
  • Hemoglobin a1c level, by device for home use (83037)
53%Service-mix similarityView profile →

Edward Lane

Family Medicine · Prosser, WA

Shared published services
2 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with tracing (93005)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
44%Service-mix similarityView profile →

Stephen L Drasnin, MD

Family Medicine · Elma, WA

Shared published services
2 shared services · view billing descriptions
  • Urinalysis, manual test (81002)
  • Urine microalbumin (protein) level (82043)
32%Service-mix similarityView profile →

Mark S Redlin, M.D.

Family Medicine · Sequim, WA

Shared published services
2 shared services · view billing descriptions
  • Urinalysis, manual test (81002)
  • Routine electrocardiogram (ecg) using at least 12 leads with tracing (93005)
29%Service-mix similarityView profile →

Mark Turpin, D.O.

Family Medicine · Tonasket, WA

Shared published services
1 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with tracing (93005)
26%Service-mix similarityView profile →

Caleb Christman Holtzer, M.D.

Family Medicine · Chewelah, WA

Shared published services
1 shared services · view billing descriptions
  • Testing for presence of drug, read by direct observation (80305)
26%Service-mix similarityView profile →

John C. Bausher, MD, PHD

Family Medicine · Aberdeen, WA

Shared published services
2 shared services · view billing descriptions
  • Hemoglobin a1c level, by device for home use (83037)
  • Urinalysis, manual test (81002)
24%Service-mix similarityView profile →

Shelby Renae Rush, MD

Family Medicine · Deer Park, WA

Shared published services
1 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with tracing (93005)
22%Service-mix similarityView profile →

Cheryl Hipolito, MD

Family Medicine · Pasco, WA

Shared published services
1 shared services · view billing descriptions
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
20%Service-mix similarityView profile →

Lisa May Wu, M.D., M.P.H.

Family Medicine · Sequim, WA

Shared published services
1 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with tracing (93005)
19%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.