1. Home
  2. Directory
  3. Colorado
  4. Aurora
  5. Pediatrics
  6. NPI Profile

DR. KEVIN BRETT MESSACAR M.D.
NPI 1114199106
Pediatrics - Pediatric Infectious Diseases in Aurora, CO

Active since March 31, 2008PECOS Enrolled
13123 E 16TH AVE, CHILDREN'S HOSPITAL COLORADO, AURORA, CO 80045(720) 777-1234 Get Directions Write a Review

NPPES record last updated: July 1, 2014. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Kevin Brett Messacar M.d. NPPES

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

DR. KEVIN BRETT MESSACAR M.D. (NPI 1114199106) is an individual pediatric infectious diseases provider in Aurora, Colorado, licensed in Colorado (DR.0049735) and active in the NPI registry since March 2008. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1114199106
Entity TypeIndividualMale
Primary Taxonomy2080P0208X
Provider Legal NameDR. KEVIN BRETT MESSACARCredential: M.D.
Location Address13123 E 16TH AVE, CHILDREN'S HOSPITAL COLORADOAurora, CO 80045-7106
Mailing AddressPo Box 110429Aurora, CO 80042-0429 · (303) 493-7000
Phone(720) 777-1234
Sole ProprietorNo
Enumeration DateMarch 31, 2008
Last NPPES UpdateJuly 1, 2014
✔ NPI 1114199106 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric Infectious DiseasesAllopathic & Osteopathic Physicians
Taxonomy Code2080P0208X
License✔ Licensed in CO · DR.0049735
Definition
A pediatrician trained to care for children in the diagnosis, treatment and prevention of infectious diseases. This specialist can apply specific knowledge to affect a better outcome for pediatric infections with complicated courses, underlying diseases that predispose to unusual or severe infections, unclear diagnoses, uncommon diseases and complex or investigational treatments.
13123 E 16TH AVE, Aurora, CO 80045
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.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. Kevin Brett Messacar 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 Kevin Messacar reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Physicians Incorporated
0.1 mi
Pediatrics
13123 E 16TH AVE
Aurora, CO 80045
  • Reassigned Medicare billing, Colorado enrollment
  • 4,283 clinicians in this Medicare group
NPI 1083662498 (720) 777-1234

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.

ERIN TERAVEST PA
Physician Assistant (Surgical)
13123 E 16TH AVE
AURORA, CO 80045
Adams County (720) 777-1234
MELISSA KAY FRAZER AA-C
Anesthesiologist Assistant
13123 E 16TH AVE
AURORA, CO 80045
Adams County (720) 777-1234
RACHEL MARIE RANWEILER
Registered Nurse (Neonatal Intensive Care)
13123 E 16TH AVE
AURORA, CO 80045
Adams County (720) 777-6857
DR. KATHRYN LYN PEGAN AU.D.
Audiologist
13123 E 16TH AVE, 2ND FLOOR OUTPATIENT PAVILION - AUDIOLOGY
AURORA, CO 80045
Adams County (720) 777-1961
MRS. KRISTEN L HOLDER FNP-C, APRN-BC
Nurse Practitioner (Psychiatric/Mental Health)
13123 E 16TH AVE
AURORA, CO 80045
Adams County (720) 777-1234
MRS. JILL M MARKS RN, APN
Nurse Practitioner (Pediatrics)
13123 E 16TH AVE
AURORA, CO 80045
Adams County (720) 777-1234
MRS. WENDELYN M BARRETT NNP
Registered Nurse (Neonatal Intensive Care)
13123 E 16TH AVE
AURORA, CO 80045
Adams County (720) 777-6857
DR. TIMOTHY OWEN VANDERKOOY MD
Emergency Medicine (Pediatric Emergency Medicine)
13123 E 16TH AVE, AURORA, CO 80045-7106
AURORA, CO 80045
Adams County (720) 777-1234

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 Kevin Messacar's NPI number?

The NPI number for Kevin Messacar is 1114199106. It was assigned to this individual provider in the NPPES registry on March 31, 2008.

Where is Kevin Messacar located?

Kevin Messacar practices at 13123 E 16th Ave Children's Hospital Colorado, Aurora, CO 80045. The listed phone number is (720) 777-1234.

What is Kevin Messacar's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Infectious Diseases, with taxonomy code 2080P0208X.

Is Kevin Messacar enrolled in Medicare?

Yes. Kevin Messacar is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Kevin Messacar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kevin Messacar reassigns Medicare benefits to University Physicians Incorporated (Aurora, CO). 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 Kevin Messacar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Kevin Messacar accept?

Health plans from UnitedHealthcare list Kevin Messacar 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 Kevin Messacar was last updated on July 1, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.