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Compare the published Medicare service mix of Maria Christina R Littaua, MD with clinicians in the same registry specialty: Physical Medicine And Rehabilitation (CMS).

RICHMOND, VA · Exact areaEdit location

2024 published service data · 22 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Joseph Seacrist, MD

Physical Medicine And Rehabilitation (CMS) · Richmond, VA

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)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
92%Service-mix similarityView profile →

Timur Albertovich Korshin, MD

Physical Medicine And Rehabilitation (CMS) · Richmond, VA

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)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
90%Service-mix similarityView profile →

Emily Ann Robbins, D.O.

Physical Medicine And Rehabilitation (CMS) · Richmond, VA

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)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
89%Service-mix similarityView profile →

Roger Gregory Giordano, M.D.

Specialty details in registry · Richmond, VA

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)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
87%Service-mix similarityView profile →

Richard Daniel Kunz, M.D.

Physical Medicine And Rehabilitation (CMS) · Richmond, VA

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)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
81%Service-mix similarityView profile →

William C Walker, MD

Physical Medicine And Rehabilitation (CMS) · Richmond, VA

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)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
79%Service-mix similarityView profile →

James P Mcgowan, M.D.

Physical Medicine And Rehabilitation (CMS) · Richmond, VA

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)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
78%Service-mix similarityView profile →

William O Mckinley, M.D.

Physical Medicine And Rehabilitation (CMS) · Richmond, VA

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)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
78%Service-mix similarityView profile →

Gabriel Saul Gorin, MD

Physical Medicine And Rehabilitation (CMS) · 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)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
68%Service-mix similarityView profile →

Manmohan S Khokhar, MD

Specialty details in registry · 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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
66%Service-mix similarityView profile →

Carmen Wong, MD

Physical Medicine And Rehabilitation (CMS) · 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)
60%Service-mix similarityView profile →

Rajbir Singh Chaggar

Physical Medicine And Rehabilitation (CMS) · Richmond, VA

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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Hospital discharge day management, 30 minutes or less (99238)
55%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.