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DR. RONALD W DAY MD
NPI 1780763359
Pediatrics - Pediatric Cardiology in Salt Lake City, UT

Active since November 03, 2006PECOS Enrolled
100 MARIO CAPECCHI DR, SALT LAKE CITY, UT 84113(801) 662-5400(801) 662-5404 Get Directions Write a Review

NPPES record last updated: December 3, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Ronald W Day Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. RONALD W DAY MD (NPI 1780763359) is an individual pediatric cardiology provider in Salt Lake City, Utah, licensed in Utah (184944-1205) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1780763359
Entity TypeIndividualMale
Primary Taxonomy2080P0202X
Provider Legal NameDR. RONALD W DAYCredential: MD
Location Address100 MARIO CAPECCHI DRSalt Lake City, UT 84113-1103
Mailing AddressPo Box 413021Salt Lake City, UT 84141-3021 · (801) 213-3900 · Fax (801) 585-3655
Phone(801) 662-5400
Fax(801) 662-5404
Sole ProprietorNo
Enumeration DateNovember 3, 2006
Last NPPES UpdateDecember 3, 2021
NPPES CertifiedDecember 3, 2021
✔ NPI 1780763359 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric CardiologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0202X
License✔ Licensed in UT · 184944-1205
Definition
A pediatric cardiologist provides comprehensive care to patients with cardiovascular problems. This specialist is skilled in selecting, performing and evaluating the structural and functional assessment of the heart and blood vessels, and the clinical evaluation of cardiovascular disease.
100 MARIO CAPECCHI DR, Salt Lake City, UT 84113
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Molina Healthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Ronald W Day Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Ronald Day reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Of Utah Pediatric Services
Same address
Pediatric Otolaryngology
100 N MARIO CAPECCHI DR
Salt Lake City, UT 84113
  • Reassigned Medicare billing, Utah enrollment
  • 751 clinicians in this Medicare group
NPI 1063876100 (801) 587-6336

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KAITLIN CARPENTER
Pediatrics
100 MARIO CAPECCHI DR
SALT LAKE CITY, UT 84113
Salt Lake County (801) 662-1000
DR. NICOLE JEFFREYS MD
Anesthesiology (Pediatric Anesthesiology)
100 MARIO CAPECCHI DR
SALT LAKE CITY, UT 84113
Salt Lake County (801) 662-3578
SARAH ZOBELL NP
Nurse Practitioner (Pediatrics)
100 MARIO CAPECCHI DR
SALT LAKE CITY, UT 84113
Salt Lake County (801) 662-1619
MRS. GIOVANA MARTENDAL KING NNP-BC
Nurse Practitioner (Neonatal, Critical Care)
100 MARIO CAPECCHI DR
SALT LAKE CITY, UT 84113
Salt Lake County (801) 662-4100
DR. STEVEN SHI-FONG WU
Pediatrics (Pediatric Gastroenterology)
100 MARIO CAPECCHI DR
SALT LAKE CITY, UT 84113
Salt Lake County (801) 662-2900
KRISTA SKYE VIAU MS, RD, CSP, CD
Dietitian, Registered (Nutrition, Metabolic)
100 MARIO CAPECCHI DR
SALT LAKE CITY, UT 84113
Salt Lake County (801) 587-9590
DR. ANDREW GERALD SMITH M.D.
Pediatrics (Pediatric Critical Care Medicine)
100 MARIO CAPECCHI DR
SALT LAKE CITY, UT 84113
Salt Lake County (801) 662-3673
MARY HUNT MARTIN MD
Pediatrics (Pediatric Cardiology)
100 MARIO CAPECCHI DR
SALT LAKE CITY, UT 84113
Salt Lake County (801) 662-5400

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ronald Day's NPI number?

The NPI number for Ronald Day is 1780763359. It was assigned to this individual provider in the NPPES registry on November 3, 2006.

Where is Ronald Day located?

Ronald Day practices at 100 Mario Capecchi Dr, Salt Lake City, UT 84113. The listed phone number is (801) 662-5400.

What is Ronald Day's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Cardiology, with taxonomy code 2080P0202X.

Is Ronald Day enrolled in Medicare?

Yes. Ronald Day is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Ronald Day's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ronald Day reassigns Medicare benefits to University Of Utah Pediatric Services (Salt Lake City, UT). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ronald Day's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ronald Day accept?

Health plans from Molina Healthcare list Ronald Day as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Ronald Day was last updated on December 3, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.