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Compare the published Medicare service mix of Steven Carroll Busselen, M.D. with clinicians in the same registry specialty: Family Medicine.

SANTA BARBARA, CA · Exact areaEdit location

2024 published service data · 41 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Susan Lawton, M.D.

Family Medicine · Santa Barbara, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Hemoglobin a1c level (83036)
  • Injection of drug or substance under skin or into muscle (96372)
93%Service-mix similarityView profile →

Kendra Lyn Wiggins

Family Medicine · Santa Barbara, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Hemoglobin a1c level (83036)
  • Administration of influenza virus vaccine (G0008)
69%Service-mix similarityView profile →

John S Stevenson, MD

Family Medicine · Santa Barbara, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
39%Service-mix similarityView profile →

Douglas Barrie Duncan, M.D.

Family Medicine · Santa Barbara, CA

Shared published services
2 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Hemoglobin a1c level (83036)
37%Service-mix similarityView profile →

Polly F Baldwin, MD

Family Medicine · Santa Barbara, CA

Shared published services
1 shared services · view billing descriptions
  • Hemoglobin a1c level (83036)
35%Service-mix similarityView profile →

Ambareen Zeenat Ahmed, DO

Family Medicine · Santa Barbara, CA

Shared published services
3 shared services · view billing descriptions
  • Administration of influenza virus vaccine (G0008)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
32%Service-mix similarityView profile →

Blanca Estela Fernandez-Kline, MD

Family Medicine · Santa Barbara, CA

Shared published services
3 shared services · view billing descriptions
  • Injection of drug or substance under skin or into muscle (96372)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
30%Service-mix similarityView profile →

David L Phreaner, M.D.

Family Medicine · Santa Barbara, CA

Shared published services
3 shared services · view billing descriptions
  • Administration of influenza virus vaccine (G0008)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
30%Service-mix similarityView profile →

Kari Mathison, M.D.

Family Medicine · Santa Barbara, CA

Shared published services
3 shared services · view billing descriptions
  • Administration of influenza virus vaccine (G0008)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
30%Service-mix similarityView profile →

Jay M Winner, M.D.

Family Medicine · Santa Barbara, CA

Shared published services
3 shared services · view billing descriptions
  • Administration of influenza virus vaccine (G0008)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
28%Service-mix similarityView profile →

Matthew John Steinhaus

Family Medicine · Santa Barbara, CA

Shared published services
3 shared services · view billing descriptions
  • Administration of influenza virus vaccine (G0008)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
28%Service-mix similarityView profile →

Stanley E Mclain, M.D.

Family Medicine · Santa Barbara, CA

Shared published services
3 shared services · view billing descriptions
  • Administration of influenza virus vaccine (G0008)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
27%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.