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Compare the published Medicare service mix of John Arthur Harris Porter, MD with clinicians in the same registry specialty: Neurology.

GREENVILLE, SC · Exact areaEdit location

2024 published service data · 33 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Kanika Arora, MD

Neurology · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • 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)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
64%Service-mix similarityView profile →

Benjamin Zwain, DO

Neurology · Greenville, SC

Shared published services
3 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)
  • Critical care, first 30-74 minutes (99291)
52%Service-mix similarityView profile →

Paul Lapenna, DO

Neurology · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • 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)
  • Critical care, first 30-74 minutes (99291)
43%Service-mix similarityView profile →

Vipul V Parekh, MD

Neurology · Greenville, SC

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Critical care, first 30-74 minutes (99291)
34%Service-mix similarityView profile →

John Robert Absher, M.D.

Neurology · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Telehealth consultation, emergency department or initial inpatient, typically 70 minutes or more communicating with the patient via telehealth (G0427)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Telehealth consultation, emergency department or initial inpatient, typically 50 minutes communicating with the patient via telehealth (G0426)
32%Service-mix similarityView profile →

Charles Stewart Jervey, M. D.

Neurology · Greenville, SC

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
26%Service-mix similarityView profile →

John Francis Pilch, M.D.

Neurology · Greenville, SC

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)
  • Measurement of brain wave activity (eeg), awake and drowsy (95816)
23%Service-mix similarityView profile →

Thomas Higgins Gann, MD

Neurology · Greenville, SC

Shared published services
1 shared services · view billing descriptions
  • Measurement of brain wave activity (eeg), awake and drowsy (95816)
23%Service-mix similarityView profile →

Hemanth G Pasupuleti, MD

Neurology · Greenville, SC

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
22%Service-mix similarityView profile →

John Jordan Melchert

Neurology · Greenville, SC

Shared published services
1 shared services · view billing descriptions
  • Measurement of brain wave activity (eeg), awake and drowsy (95816)
21%Service-mix similarityView profile →

David M Kerek, M.D.

Neurology · Greenville, SC

Shared published services
1 shared services · view billing descriptions
  • Measurement of brain wave activity (eeg), awake and drowsy (95816)
19%Service-mix similarityView profile →

Andrea Sneider Hakimi, D.O.

Neurology · Greenville, SC

Shared published services
1 shared services · view billing descriptions
  • Measurement of brain wave activity (eeg), awake and drowsy (95816)
19%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.