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Compare the published Medicare service mix of Phillip Marshall, MD with clinicians in the same registry specialty: Psychiatry.

RICHMOND, VA · Exact areaEdit location

2024 published service data · 37 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Benjamin L Wiseman

Psychiatry · Richmond, VA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Psychiatric diagnostic evaluation with medical services (90792)
82%Service-mix similarityView profile →

Benjamin R Pierce

Psychiatry · Richmond, VA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Psychiatric diagnostic evaluation with medical services (90792)
  • Hospital discharge day management, 30 minutes or less (99238)
69%Service-mix similarityView profile →

David Alan Lekberg, M.D.

Psychiatry · Richmond, VA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, 30 minutes or less (99238)
65%Service-mix similarityView profile →

Charles Kramer

Psychiatry · Richmond, VA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, 30 minutes or less (99238)
62%Service-mix similarityView profile →

Jefferson M Sommers, M.D.

Psychiatry · Richmond, VA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Psychiatric diagnostic evaluation with medical services (90792)
62%Service-mix similarityView profile →

Daniel Thomas Higgins, MD

Psychiatry · Richmond, VA

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)
  • Psychiatric diagnostic evaluation with medical services (90792)
56%Service-mix similarityView profile →

Vasu Venkatachalam, M.D.

Psychiatry · Richmond, VA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Psychiatric diagnostic evaluation with medical services (90792)
56%Service-mix similarityView profile →

Bandhan Chakraborty, MD

Psychiatry · Richmond, VA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
53%Service-mix similarityView profile →

Sridhar Yaratha, MD

Psychiatry · Richmond, VA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Psychiatric diagnostic evaluation with medical services (90792)
52%Service-mix similarityView profile →

Jason Allen Burton, MD

Psychiatry · Richmond, VA

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)
  • Psychiatric diagnostic evaluation with medical services (90792)
49%Service-mix similarityView profile →

Laurel Alexis Ambrose

Psychiatry · Richmond, VA

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)
  • Psychiatric diagnostic evaluation with medical services (90792)
47%Service-mix similarityView profile →

Jamie Allison Fields, D.O.

Psychiatry · Richmond, VA

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)
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.