Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mr. Eloy A. Ruiz-Calderon, MD

Individual provider Anesthesiology Physician · NPI 1184783292

Mr. Eloy A. Ruiz-Calderon, MD practises Anesthesiology in Louisville, Kentucky. Qualified in 1990, 36 years ago. Practices with North American Partners in Anesthesia Illinois LLC, a 428-clinician group and accepts Medicare assignment. Licensed in Illinois and Kentucky.

Years since qualifying
36
Licensed in
IL, KY
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

4000 Kresge Way
Louisville, KY 40207-4605
Phone: (502) 473-2132
Fax: (502) 459-0923
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 37976 (KY)
Anesthesiology Physician Taxonomy 207L00000X · Licence 036163294 (IL)

Record details

NPI number1184783292
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 6, 2006
Last updated in NPPESMarch 3, 2023
Certification dateMarch 3, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 1990 (36 years in practice)
Group practice North American Partners In Anesthesia Illinois Llc — 428 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients56
Services billed 79 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Hshs St Elizabeth'S Hospital Hospital · O Fallon, IL
  • St Josephs Hospital Hospital · Breese, IL

Colleagues at North American Partners in Anesthesia Illinois LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 428 clinicians in the practice; 12 are shown here.

Other providers in Louisville