A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Luke Walter Mellens, RN with clinicians in the same registry specialty: Certified Registered Nurse Anesthetist (Crna) (CMS).

CHICAGO, IL · Exact areaEdit location

2024 published service data · 245 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Paige Madek, APRN, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Chicago, 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)
58%Service-mix similarityView profile →

Elizabeth Monahan, CRNA

Specialty details in registry · Chicago, IL

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand (01810)
58%Service-mix similarityView profile →

Todd Arndt

Certified Registered Nurse Anesthetist (Crna) (CMS) · Chicago, 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)
57%Service-mix similarityView profile →

Eileen Dollear, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Chicago, 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)
56%Service-mix similarityView profile →

Cynthia Cristina Lopez, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Chicago, 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)
56%Service-mix similarityView profile →

Courtney Beth Beck

Certified Registered Nurse Anesthetist (Crna) (CMS) · Chicago, 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)
54%Service-mix similarityView profile →

Katherine Eileen Diamond, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Chicago, 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)
53%Service-mix similarityView profile →

Leah Theresa Olsson, CRNA

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

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand (01810)
  • Anesthesia for procedure for total knee joint replacement (01402)
52%Service-mix similarityView profile →

Adriana Hall, CRNA

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

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
52%Service-mix similarityView profile →

Mark Thomas Ritter, APRN, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Chicago, 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)
50%Service-mix similarityView profile →

Enyinnaya Omelogu, CRNA

Certified Registered Nurse Anesthetist (Crna) (CMS) · Chicago, 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)
41%Service-mix similarityView profile →

Hilary Wagner, CRNA, MSN

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

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
39%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.