A DIFFERENT WAY TO EXPLORE

Similar work.
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Compare the published Medicare service mix of Olga Nicholas, APRN, CRNA with clinicians in the same registry specialty: Certified Registered Nurse Anesthetist (Crna) (CMS).

GENEVA, IL · Exact areaEdit location

2024 published service data · 17 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Jaclynn M Denardo, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Geneva, IL

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Anesthesia for lens surgery (00142)
  • Anesthesia for total hip replacement (01214)
53%Service-mix similarityView profile →

Matthew Deniger

Certified Registered Nurse Anesthetist (Crna) (CMS) · Geneva, IL

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Anesthesia for lens surgery (00142)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
50%Service-mix similarityView profile →

Magdoline Vanhouten, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Geneva, IL

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Anesthesia for lens surgery (00142)
40%Service-mix similarityView profile →

Lucia Magarzo, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Geneva, IL

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Anesthesia for lens surgery (00142)
  • Anesthesia for other procedure on lower leg, ankle, and foot bones (01480)
39%Service-mix similarityView profile →

Theresia M Anderson, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Geneva, IL

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Anesthesia for total hip replacement (01214)
38%Service-mix similarityView profile →

Cherrilyn B Yamat, RN

Certified Registered Nurse Anesthetist (Crna) (CMS) · Geneva, IL

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
28%Service-mix similarityView profile →

Lisa Tierney, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Geneva, IL

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
27%Service-mix similarityView profile →

Kandace M Brant, APRN, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Geneva, IL

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
26%Service-mix similarityView profile →

Christopher F Arbir, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Geneva, IL

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
20%Service-mix similarityView profile →

Adrienne Alexandra Rigitano, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Geneva, IL

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
20%Service-mix similarityView profile →

Chad Brudos

Certified Registered Nurse Anesthetist (Crna) (CMS) · Geneva, IL

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
18%Service-mix similarityView profile →

Victoria Russell, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Geneva, IL

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
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.