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COLBY LAUREN STEGALL DAY M.D.
NPI 1710273552
Pediatrics - Neonatal-Perinatal Medicine in Jacksonville, FL

Active since June 20, 2011PECOS Enrolled
653-1 W 8TH ST # L-16, JACKSONVILLE, FL 32209(904) 244-3050(904) 244-3050 Get Directions Write a Review

NPPES record last updated: October 13, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 17, 2018, Jul 26, 2017, Jun 8, 2017 (3 updates tracked since 2017).

About Colby Lauren Stegall Day M.d. NPPES

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

COLBY LAUREN STEGALL DAY M.D. (NPI 1710273552) is an individual neonatal-perinatal medicine provider in Jacksonville, Florida, licensed in Florida (ME132191) and active in the NPI registry since June 2011. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1710273552
Entity TypeIndividualFemale
Primary Taxonomy2080N0001X
Provider Legal NameCOLBY LAUREN STEGALL DAYCredential: M.D.
Location Address653-1 W 8TH ST # L-16Jacksonville, FL 32209-6511
Mailing AddressPo Box 44008Jacksonville, FL 32231-4008 · (904) 244-3050 · Fax (904) 244-3028
Phone(904) 244-3050
Fax(904) 244-3050
Sole ProprietorNo
Enumeration DateJune 20, 2011
Last NPPES UpdateOctober 13, 20253 updates tracked since enumeration
NPPES CertifiedOctober 13, 2025
✔ NPI 1710273552 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
License✔ Licensed in FL · ME132191
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
Also ListedPediatricsTaxonomy 208000000X · License ME132191 (FL)
653-1 W 8TH ST # L-16, Jacksonville, FL 32209
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Other Names 1

Former Name (1)Colby Lauren Day Richardson Md

Other Identifiers 1

Medicaid021180600FL

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Colby Lauren Stegall Day M.d. 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 Colby Day reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Of Florida Jacksonville Physicians, Inc.
Same address
Internal Medicine
653 W 8TH ST, UNIVERSITY OF FLORIDA JACKSONVILLE PHYSICIANS, INC.
Jacksonville, FL 32209
  • Reassigned Medicare billing, Florida enrollment
  • 1,456 clinicians in this Medicare group
NPI 1144276452 (904) 244-3500

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

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 Colby Day's NPI number?

The NPI number for Colby Day is 1710273552. It was assigned to this individual provider in the NPPES registry on June 20, 2011. The provider is also known as Colby Lauren Day Richardson MD.

Where is Colby Day located?

Colby Day practices at 653-1 W 8th St # L-16, Jacksonville, FL 32209. The listed phone number is (904) 244-3050.

What is Colby Day's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is Colby Day enrolled in Medicare?

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

Which organization bills Medicare for Colby Day's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Colby Day reassigns Medicare benefits to University Of Florida Jacksonville Physicians, Inc. (Jacksonville, FL). 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 Colby Day's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Colby Day was last updated on October 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.