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Compare the published Medicare service mix of Brenda Nicole Nishizawa, DO with clinicians in the same registry specialty: Internal Medicine.

MADISON, WI · Exact areaEdit location

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

Deborah Williams, MD

Internal Medicine · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Hemoglobin a1c level (83036)
86%Service-mix similarityView profile →

Amy L Fothergill, M.D.

Internal Medicine · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Hemoglobin a1c level (83036)
77%Service-mix similarityView profile →

Michael I Goldrosen, M.D.

Internal Medicine · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Hemoglobin a1c level (83036)
75%Service-mix similarityView profile →

Robert W Olson, M.D.

Internal Medicine · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Hemoglobin a1c level (83036)
75%Service-mix similarityView profile →

Zoe Louise Rammelkamp, MD

Internal Medicine · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Hemoglobin a1c level (83036)
73%Service-mix similarityView profile →

Jennifer L Everton, D.O.

Internal Medicine · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Hemoglobin a1c level (83036)
71%Service-mix similarityView profile →

Claudiu G Gherlan, MD

Internal Medicine · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Hemoglobin a1c level (83036)
69%Service-mix similarityView profile →

Jonathan S Anderson, M.D.

Internal Medicine · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
68%Service-mix similarityView profile →

Casey Ann Birschbach, MD

Internal Medicine · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Hemoglobin a1c level (83036)
66%Service-mix similarityView profile →

Johanna Christine Streyle, M.D.

Internal Medicine · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
66%Service-mix similarityView profile →

Rafael Hastey, M.D.

Internal Medicine · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Hemoglobin a1c level (83036)
66%Service-mix similarityView profile →

Sarah Louise Floden, MD

Internal Medicine · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
66%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.