JAMES CHRISTOPHER DAY MD
NPI 1508823006
Pediatrics - Pediatric Infectious Diseases in Kansas City, MO
About James Christopher Day Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JAMES CHRISTOPHER DAY MD (NPI 1508823006) is an individual pediatric infectious diseases provider in Kansas City, Missouri, licensed in Missouri (2002031309) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
James Christopher Day Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show James Day reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Kansas City, KS 66160
- Reassigned Medicare billing, Kansas enrollment
- 2,139 clinicians in this Medicare group
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.
KANSAS CITY, MO 64108
KANSAS CITY, MO 64108
KANSAS CITY, MO 64108
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 James Day's NPI number?
The NPI number for James Day is 1508823006. It was assigned to this individual provider in the NPPES registry on April 27, 2006. The provider is also known as Chris Day MD.
Where is James Day located?
James Day practices at 2401 Gillham Rd, Kansas City, MO 64108. The listed phone number is (816) 234-3000.
What is James Day's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Infectious Diseases, with taxonomy code 2080P0208X.
Is James Day enrolled in Medicare?
Yes. James Day is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for James Day's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Day reassigns Medicare benefits to Kansas University Physicians Inc (Kansas City, KS). 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 James Day's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does James Day accept?
Health plans from Anthem Blue Cross and Blue Shield and Blue Cross and Blue Shield of Kansas City list James 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 James Day was last updated on March 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# James Christopher Day, MD · NPI 1508823006
Pediatric Infectious Diseases physician in Kansas City, Missouri. Individual provider, active in the CMS NPPES registry since April 27, 2006.
## Identity
- **NPI:** 1508823006 (Entity type: Individual)
- **Enumerated:** April 27, 2006
- **Primary specialty:** Pediatrics - Pediatric Infectious Diseases · taxonomy 2080P0208X
- **State license:** 2002031309 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 2401 GILLHAM RD, Kansas City, MO 64108-4619
- **Phone:** (816) 234-3000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Kansas University Physicians Inc (NPI 1053457978, Kansas City, KS), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 16, 2026
- **Other identifiers:** Medicaid 206003006 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1508823006) · Data from the CMS NPPES public registry.