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Compare the published Medicare service mix of Ryan Z Chippendale, MD with clinicians in the same registry specialty: Geriatric Medicine · Internal Medicine (CMS).

BOSTON, MA · Exact areaEdit location

2024 published service data · 47 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Daniel J Oates, M.D.

Geriatric Medicine · Internal Medicine (CMS) · Boston, MA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
68%Service-mix similarityView profile →

Stephanie Pagliuca

Geriatric Medicine · Internal Medicine (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
60%Service-mix similarityView profile →

Melissa Lowe Plocher Mattison, MD

Hospitalist · Internal Medicine (CMS) · Boston, MA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
59%Service-mix similarityView profile →

Leah Taffel, MD

Geriatric Medicine · Internal Medicine (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
57%Service-mix similarityView profile →

Rachelle E. Bernacki, M.D.

Geriatric Medicine · Hospice/Palliative Care · Internal Medicine (CMS) · Boston, MA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
54%Service-mix similarityView profile →

Won M Lee, M.D.

Geriatric Medicine · Internal Medicine (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
53%Service-mix similarityView profile →

Thomas T. Perls, M.D., MPH

Geriatric Medicine · Internal Medicine (CMS) · Boston, MA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
51%Service-mix similarityView profile →

Lisa B Caruso, M.D.

Geriatric Medicine · Internal Medicine (CMS) · Boston, MA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
50%Service-mix similarityView profile →

Julia M Burns, MD

Geriatric Medicine · Internal Medicine (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
50%Service-mix similarityView profile →

Megan Elizabeth Young

Geriatric Medicine · Internal Medicine (CMS) · Boston, MA

Shared published services
1 shared services · view billing descriptions
  • Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)
49%Service-mix similarityView profile →

Esteban Franco Garcia, M.D

Geriatric Medicine · Internal Medicine (CMS) · Boston, MA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
47%Service-mix similarityView profile →

Ceyda Akartuna

Geriatric Medicine · Hospitalist (CMS) · Boston, MA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
46%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.