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Compare the published Medicare service mix of Vyas Tenkasi Viswanathan, M.D. with clinicians in the same registry specialty: Neurology.

RALEIGH, NC · Exact areaEdit location

2024 published service data · 29 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Leonardo Morantes Gomez, MD

Neurology · Raleigh, NC

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
70%Service-mix similarityView profile →

Hussein Alshammari, MD

Neurology · Raleigh, NC

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
62%Service-mix similarityView profile →

Wayneho Kam, M.D.

Neurology · Raleigh, NC

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • 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)
62%Service-mix similarityView profile →

Kumaraswamy Guttalu Krishnamurthy Rao, MD, PHD

Neurology · Raleigh, NC

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • 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)
57%Service-mix similarityView profile →

Chandni Pankaj Kalaria, M.D.

Neurology · Raleigh, NC

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • 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)
57%Service-mix similarityView profile →

Cheryl Lynn Mcneil, MD

Neurology · Raleigh, NC

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • 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)
55%Service-mix similarityView profile →

Guangbin Xia, MD, PHD

Neurology · Raleigh, NC

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)
  • Measurement of brain wave activity (eeg), awake and drowsy (95816)
35%Service-mix similarityView profile →

Timothy Edward Ryan, MD

Neurology · Raleigh, NC

Shared published services
3 shared services · view billing descriptions
  • Measurement of brain wave activity with video (veeg), 12-26 hours with review and report by health care professional (95720)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
33%Service-mix similarityView profile →

John O Collins, M.D.

Neurology · Raleigh, NC

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
30%Service-mix similarityView profile →

Ninad Desai

Neurology · Raleigh, NC

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)
23%Service-mix similarityView profile →

Susan A. Glenn, M.D.

Neurology · Raleigh, NC

Shared published services
2 shared services · view billing descriptions
  • Measurement of brain wave activity with video (veeg), 12-26 hours with review and report by health care professional (95720)
  • Measurement of brain wave activity (eeg), awake and drowsy (95816)
19%Service-mix similarityView profile →

Bushra Javed, M.D

Neurology · Raleigh, NC

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
17%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.