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Compare the published Medicare service mix of Liza Iv, MS, RDN with clinicians in the same registry specialty: Registered Dietitian Or Nutrition Professional (CMS).

CA · Exact areaEdit location

2024 published service data · 145 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Harley Rogers, RD

Registered Dietitian Or Nutrition Professional (CMS) · Fairfield, CA

Shared published services
3 shared services · view billing descriptions
  • Therapy procedure for nutrition management, each 15 minutes (97802)
  • Diabetes outpatient self-management training services, individual, per 30 minutes (G0108)
  • Therapy procedure reassessment for nutrition management, each 15 minutes (97803)
100%Service-mix similarityView profile →

Ruth Spirakis, RD

Registered Dietitian Or Nutrition Professional (CMS) · Palo Alto, CA

Shared published services
3 shared services · view billing descriptions
  • Therapy procedure for nutrition management, each 15 minutes (97802)
  • Diabetes outpatient self-management training services, individual, per 30 minutes (G0108)
  • Therapy procedure reassessment for nutrition management, each 15 minutes (97803)
100%Service-mix similarityView profile →

Heidi Marie Smith, RDN

Specialty details in registry · Long Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Therapy procedure for nutrition management, each 15 minutes (97802)
  • Diabetes outpatient self-management training services, individual, per 30 minutes (G0108)
  • Therapy procedure reassessment for nutrition management, each 15 minutes (97803)
100%Service-mix similarityView profile →

Betsy Hennessy, RD,CSR

Registered Dietitian Or Nutrition Professional (CMS) · Roseville, CA

Shared published services
3 shared services · view billing descriptions
  • Therapy procedure for nutrition management, each 15 minutes (97802)
  • Diabetes outpatient self-management training services, individual, per 30 minutes (G0108)
  • Therapy procedure reassessment for nutrition management, each 15 minutes (97803)
100%Service-mix similarityView profile →

Nicole Erika Azurin, R.D.

Registered Dietitian Or Nutrition Professional (CMS) · Palo Alto, CA

Shared published services
3 shared services · view billing descriptions
  • Therapy procedure for nutrition management, each 15 minutes (97802)
  • Diabetes outpatient self-management training services, individual, per 30 minutes (G0108)
  • Therapy procedure reassessment for nutrition management, each 15 minutes (97803)
100%Service-mix similarityView profile →

Amy M Fox, RD

Registered Dietitian Or Nutrition Professional (CMS) · Roseville, CA

Shared published services
3 shared services · view billing descriptions
  • Therapy procedure for nutrition management, each 15 minutes (97802)
  • Diabetes outpatient self-management training services, individual, per 30 minutes (G0108)
  • Therapy procedure reassessment for nutrition management, each 15 minutes (97803)
100%Service-mix similarityView profile →

Cindy Ann Daversa, M.S., R.D., C.D.E.

Registered Dietitian Or Nutrition Professional (CMS) · La Jolla, CA

Shared published services
3 shared services · view billing descriptions
  • Therapy procedure for nutrition management, each 15 minutes (97802)
  • Diabetes outpatient self-management training services, individual, per 30 minutes (G0108)
  • Therapy procedure reassessment for nutrition management, each 15 minutes (97803)
100%Service-mix similarityView profile →

Kathryn Allison Rosenquist, RD

Registered Dietitian Or Nutrition Professional (CMS) · Carlsbad, CA

Shared published services
3 shared services · view billing descriptions
  • Therapy procedure for nutrition management, each 15 minutes (97802)
  • Diabetes outpatient self-management training services, individual, per 30 minutes (G0108)
  • Therapy procedure reassessment for nutrition management, each 15 minutes (97803)
100%Service-mix similarityView profile →

Janine Elizabeth Penha, RD, CDE

Registered Dietitian Or Nutrition Professional (CMS) · San Jose, CA

Shared published services
3 shared services · view billing descriptions
  • Therapy procedure for nutrition management, each 15 minutes (97802)
  • Diabetes outpatient self-management training services, individual, per 30 minutes (G0108)
  • Therapy procedure reassessment for nutrition management, each 15 minutes (97803)
99%Service-mix similarityView profile →

Irene Josefina Ventura Zadran, RDN

Registered Dietitian Or Nutrition Professional (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Therapy procedure for nutrition management, each 15 minutes (97802)
  • Diabetes outpatient self-management training services, individual, per 30 minutes (G0108)
  • Therapy procedure reassessment for nutrition management, each 15 minutes (97803)
99%Service-mix similarityView profile →

Gina M Whiteley, RD, CDE

Registered Dietitian Or Nutrition Professional (CMS) · Roseville, CA

Shared published services
3 shared services · view billing descriptions
  • Therapy procedure for nutrition management, each 15 minutes (97802)
  • Diabetes outpatient self-management training services, individual, per 30 minutes (G0108)
  • Therapy procedure reassessment for nutrition management, each 15 minutes (97803)
99%Service-mix similarityView profile →

Valerie Spier, RD

Registered Dietitian Or Nutrition Professional (CMS) · Fremont, CA

Shared published services
2 shared services · view billing descriptions
  • Therapy procedure for nutrition management, each 15 minutes (97802)
  • Diabetes outpatient self-management training services, individual, per 30 minutes (G0108)
84%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.