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Compare the published Medicare service mix of Joni Marie Coker, D.O. with clinicians in the same registry specialty: Obstetrics & Gynecology.

SIMPSONVILLE, SC · 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 · 39 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Mary Darcy Slizewski, M.D.

Obstetrics & Gynecology · Greenville, SC

Shared published services
1 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
100%Service-mix similarity~8.7 milesView profile →

Allison Praktish Riley, M.D.

Obstetrics & Gynecology · Greenville, SC

Shared published services
1 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
100%Service-mix similarity~8.7 milesView profile →

Celeste Beard Beaudoin, MD

Obstetrics & Gynecology · Greenville, SC

Shared published services
1 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
100%Service-mix similarity~8.7 milesView profile →

Vanessa A Mazzoli, M.D.

Obstetrics & Gynecology · Greenville, SC

Shared published services
1 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
77%Service-mix similarity~8.5 milesView profile →

Edward P Heidtman, M.D

Obstetrics & Gynecology · Greenville, SC

Shared published services
1 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
76%Service-mix similarity~8.5 milesView profile →

Kristen Lynne Macclenahan, MD

Obstetrics & Gynecology · Greenville, SC

Shared published services
1 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
76%Service-mix similarity~8.7 milesView profile →

Angela Marie Rodi, MD

Obstetrics & Gynecology · Greenville, SC

Shared published services
1 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
71%Service-mix similarity~8.7 milesView profile →

Jennifer C Simmons, M.D.

Obstetrics & Gynecology · Greenville, SC

Shared published services
1 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
68%Service-mix similarity~8.7 milesView profile →

Mary Milner Beck, MD

Obstetrics & Gynecology · Greenville, SC

Shared published services
1 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
67%Service-mix similarity~8.7 milesView profile →

Carrie Ann Twedt, M.D.

Obstetrics & Gynecology · Greenville, SC

Shared published services
1 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
67%Service-mix similarity~8.7 milesView profile →

Katheryn Dixon Isham, M.D.

Obstetrics & Gynecology · Greenville, SC

Shared published services
1 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
67%Service-mix similarity~8.5 milesView profile →

Jonathan Quin Bailey, M.D.

Obstetrics & Gynecology · Greenville, SC

Shared published services
1 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
66%Service-mix similarity~8.7 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.