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Compare the published Medicare service mix of Joan Reynolds, M.D. with clinicians in the same registry specialty: Diagnostic Radiology (CMS).

WALNUT CREEK, CA · Exact areaEdit location

2024 published service data · 62 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Angelo Crudale, MD

Specialty details in registry · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
  • Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)
100%Service-mix similarityView profile →

Less T Chafen, M.D.

Specialty details in registry · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
  • Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)
89%Service-mix similarityView profile →

Molly Honegger, M.D.

Diagnostic Radiology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
  • Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)
87%Service-mix similarityView profile →

Vivian Wing, M.D.

Diagnostic Radiology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
  • Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)
84%Service-mix similarityView profile →

Ruby Chang, M.D.

Diagnostic Radiology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
  • Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)
72%Service-mix similarityView profile →

Huijia Joanna Chen

Diagnostic Radiology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
  • Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)
63%Service-mix similarityView profile →

Sangeeta Gambhir, M.D.

Diagnostic Radiology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
  • Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)
55%Service-mix similarityView profile →

Mark Kuang-Mian Tu, M.D.

Diagnostic Radiology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
  • Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)
45%Service-mix similarityView profile →

Kirk C So, M.D.

Diagnostic Radiology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
  • Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)
44%Service-mix similarityView profile →

Mark Steven Goldsmith, M.D.

Diagnostic Radiology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
  • Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)
43%Service-mix similarityView profile →

Eric Mour-Kee Tao, M.D.

Diagnostic Radiology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
  • Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)
43%Service-mix similarityView profile →

Keith Edwin-Mosun Tao, M.D.

Diagnostic Radiology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
  • Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)
42%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.