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DR. KATHERINE GRACE MACMILLAN MD
NPI 1104340215
Pediatrics - Pediatric Critical Care Medicine in Kansas City, MO

Active since July 31, 2017PECOS Enrolled
2401 GILLHAM RD, KANSAS CITY, MO 64108(816) 234-3000 Get Directions Write a Review

NPPES record last updated: March 14, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 14, 2026, Jun 23, 2023, Jul 21, 2022 and 2 more (5 updates tracked since 2017).

About Dr. Katherine Grace Macmillan Md NPPES

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

DR. KATHERINE GRACE MACMILLAN MD (NPI 1104340215) is an individual pediatric critical care medicine provider in Kansas City, Missouri, licensed in Kansas (04-47698) and active in the NPI registry since July 2017. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1104340215
Entity TypeIndividualFemale
Primary Taxonomy2080P0203X
Provider Legal NameDR. KATHERINE GRACE MACMILLANCredential: MD
Location Address2401 GILLHAM RDKansas City, MO 64108-4619
Mailing Address2401 Gillham Rd, Provider Enrollment DeptKansas City, MO 64108-4619 · (816) 701-5200 · Fax (816) 302-9939
Phone(816) 234-3000
Sole ProprietorNo
Enumeration DateJuly 31, 2017
Last NPPES UpdateMarch 14, 20265 updates tracked since enumeration
NPPES CertifiedMarch 14, 2026
✔ NPI 1104340215 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080P0203X
Licenses✔ Licensed in KS · 04-47698✔ Licensed in MO · 2023021133
Definition
A pediatrician expert in advanced life support for children from the term or near-term neonate to the adolescent. This competence extends to the critical care management of life-threatening organ system failure from any cause in both medical and surgical patients and to the support of vital physiological functions. This specialist may have administrative responsibilities for intensive care units and also facilitates patient care among other specialists.
2401 GILLHAM RD, Kansas City, MO 64108
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Secondary Practice Locations 2

Location 11800 Orleans St Ste 6302Baltimore, MD 21287-0010 · Phone (803) 722-0089
Location 214 Medical Park, Ste 400, Children's Hospital Outpatient CenterColumbia, SC 29203 · Phone (803) 434-6155 · Fax (803) 434-6979

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Kansas City, Blue Cross and Blue Shield of Kansas, Inc..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. Katherine Grace Macmillan 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 Katherine Macmillan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Ascension Via Christi Hospitals Wichita Inc.
173 mi
Endocrinology, Diabetes & Metabolism
1151 N ROCK ROAD
Wichita, KS 67206
  • Reassigned Medicare billing, Kansas enrollment
  • 208 clinicians in this Medicare group
NPI 1831185065 (316) 689-5235

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.

RYAN A ROMANS MD
Pediatrics (Pediatric Cardiology)
2401 GILLHAM RD
KANSAS CITY, MO 64108
Jackson County (816) 234-3000
JENNIFER BITNER MSN, APRN, FNP-C
Nurse Practitioner (Family)
2401 GILLHAM RD
KANSAS CITY, MO 64108
Jackson County (913) 234-3000
SAMIRA NAIME M.D.
Pediatrics (Sleep Medicine)
2401 GILLHAM RD
KANSAS CITY, MO 64108
Jackson County (816) 234-3000
MICHELLE RENEE MIDDLETON AU.D.
Audiologist
2401 GILLHAM RD, HEARING AND SPEECH CLINIC
KANSAS CITY, MO 64108
Jackson County (816) 960-4009
MRS. SHERILYN KELLY APRN
Nurse Practitioner (Neonatal, Critical Care)
2401 GILLHAM RD
KANSAS CITY, MO 64108
Jackson County (816) 234-3000
MADALYN NICOLE SINGLETON DO
Student in an Organized Health Care Education/Training Program
2401 GILLHAM RD
KANSAS CITY, MO 64108
Jackson County (816) 234-3000
EMMA LYNNE WORLEY CAA
Anesthesiologist Assistant
2401 GILLHAM RD
KANSAS CITY, MO 64108
Jackson County (816) 234-3000
DR. FAYTH WALBRIDGE PHD
Psychologist (Clinical)
2401 GILLHAM RD
KANSAS CITY, MO 64108
Jackson County (308) 655-0842

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 Katherine Macmillan's NPI number?

The NPI number for Katherine Macmillan is 1104340215. It was assigned to this individual provider in the NPPES registry on July 31, 2017.

Where is Katherine Macmillan located?

Katherine Macmillan practices at 2401 Gillham Rd, Kansas City, MO 64108. The listed phone number is (816) 234-3000.

What is Katherine Macmillan's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Critical Care Medicine, with taxonomy code 2080P0203X.

Is Katherine Macmillan enrolled in Medicare?

Yes. Katherine Macmillan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Katherine Macmillan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Macmillan reassigns Medicare benefits to Ascension Via Christi Hospitals Wichita Inc. (Wichita, 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 Katherine Macmillan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Katherine Macmillan accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Kansas City and Blue Cross and Blue Shield of Kansas, Inc. list Katherine Macmillan 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 Katherine Macmillan was last updated on March 14, 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.