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Compare the published Medicare service mix of Peter Sidarous, MD with clinicians in the same registry specialty: Family Medicine.

LITTLE ROCK, AR · Exact areaEdit location

2024 published service data · 95 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

David A Nelsen, MD

Family Medicine · Little Rock, AR

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
69%Service-mix similarityView profile →

Stephen Humbard, MD

Family Medicine · Little Rock, AR

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Injection of drug or substance under skin or into muscle (96372)
55%Service-mix similarityView profile →

Allan Dee Mckenzie, M.D.

Family Medicine · Little Rock, AR

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Injection of drug or substance under skin or into muscle (96372)
55%Service-mix similarityView profile →

Robert Tyray Jimmerson, M.D.

Family Medicine · Little Rock, AR

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
51%Service-mix similarityView profile →

Elizabeth Webb Irby, D.O.

Family Medicine · Little Rock, AR

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Injection of drug or substance under skin or into muscle (96372)
49%Service-mix similarityView profile →

Kevin D Roberts, MD

Family Medicine · Little Rock, AR

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Injection of drug or substance under skin or into muscle (96372)
48%Service-mix similarityView profile →

Gary E. Harper, M.D.

Family Medicine · Little Rock, AR

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Injection of drug or substance under skin or into muscle (96372)
47%Service-mix similarityView profile →

Elwyn Joe Perser, M.D.

Family Medicine · Little Rock, AR

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Injection of drug or substance under skin or into muscle (96372)
47%Service-mix similarityView profile →

Charles Wilson Smith, M.D.

Family Medicine · Little Rock, AR

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
45%Service-mix similarityView profile →

Shami Nandy, MD

Family Medicine · Little Rock, AR

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Telephone medical discussion with physician, 11-20 minutes (99442)
43%Service-mix similarityView profile →

Karen Webb Crowell, M.D.

Family Medicine · Little Rock, AR

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Telephone medical discussion with physician, 11-20 minutes (99442)
42%Service-mix similarityView profile →

Steve Simpson, M.D.

Family Medicine · Little Rock, AR

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Injection of drug or substance under skin or into muscle (96372)
  • Telephone medical discussion with physician, 11-20 minutes (99442)
42%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.