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Compare the published Medicare service mix of Daniel Merck with clinicians in the same registry specialty: Family Medicine.

GRAND RAPIDS, MI · Exact areaEdit location

2024 published service data · 136 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Elizabeth Brouwer, DO

Family Medicine · Grand Rapids, MI

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • 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)
87%Service-mix similarityView profile →

Jared Langerak, M.D.

Family Medicine · Grand Rapids, MI

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • 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)
86%Service-mix similarityView profile →

David Francis Lieuwen, M.D.

Family Medicine · Grand Rapids, MI

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • 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)
84%Service-mix similarityView profile →

Andrew Vollmar, M.D.

Family Medicine · Grand Rapids, MI

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • 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)
81%Service-mix similarityView profile →

Erin Kinney Hayhow, D.O.

Family Medicine · Grand Rapids, MI

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Hemoglobin a1c level (83036)
75%Service-mix similarityView profile →

Taylor Sue Gaudard, MD

Family Medicine · Grand Rapids, MI

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Hemoglobin a1c level (83036)
74%Service-mix similarityView profile →

Janel Maria Salem, MD

Family Medicine · Grand Rapids, MI

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • 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)
73%Service-mix similarityView profile →

Isaac J Vandam, MD

Family Medicine · Grand Rapids, MI

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • 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)
71%Service-mix similarityView profile →

Kimberly Sue Devlin, D.O.

Family Medicine · Grand Rapids, MI

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • 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)
69%Service-mix similarityView profile →

Emily Maria Cera, D.O.

Family Medicine · Grand Rapids, MI

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
69%Service-mix similarityView profile →

Kathryn Therese Kozminski, MD

Family Medicine · Grand Rapids, MI

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
69%Service-mix similarityView profile →

Angela Renee Oostema, MD

Family Medicine · Grand Rapids, MI

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
68%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.