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Compare the published Medicare service mix of Danielle Chammas with clinicians in the same registry specialty: Neurology · Psychiatry (CMS).

SAN FRANCISCO, CA · Exact areaEdit location

2024 published service data · 102 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Brandon Blake Holmes, MD/PHD

Neurology (CMS) · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
84%Service-mix similarityView profile →

Courtney Lane-Donovan

Neurology (CMS) · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
71%Service-mix similarityView profile →

Lealah Pollock, M.D., M.S.

Family Practice (CMS) · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
66%Service-mix similarityView profile →

Pamela Marcott

Neurology (CMS) · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
65%Service-mix similarityView profile →

Noah Younger, M.D., P.H.D.

Hematology/Oncology · Internal Medicine (CMS) · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
63%Service-mix similarityView profile →

Phuong Thi Hoang, MD, PHD

Neurology (CMS) · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
62%Service-mix similarityView profile →

Mary Rolfes, STUDENT

Neurology (CMS) · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
58%Service-mix similarityView profile →

Hala Borno, M.D.

Internal Medicine (CMS) · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
58%Service-mix similarityView profile →

Steven Pirog, MD

Internal Medicine (CMS) · San Francisco, CA

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

Nilay Sethi, M.D., PH.D.

Medical Oncology (CMS) · San Francisco, CA

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

Melissa Laura Capule, M.D.

Internal Medicine (CMS) · San Francisco, CA

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

Sheila Chan, M.D.

Neurology (CMS) · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
54%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.