COLORADO ALLERGY AND ASTHMA CENTERS, PC
NPI 1417986134
Specialist in Denver, CO
About Colorado Allergy And Asthma Centers, Pc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
COLORADO ALLERGY AND ASTHMA CENTERS, PC (NPI 1417986134) is a healthcare organization registered as a specialist in Denver, Colorado and active in the NPI registry since July 2006. The organization lists John Milewski, Coo/chief Operating Officer, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Colorado Allergy And Asthma Centers, Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
18Medicare enrollment records show 18 clinicians reassign Medicare billing to Colorado Allergy And Asthma Centers, PC, which bills Medicare for the services they deliver. Of these, 4 practice at this address and 9 within 10 miles. They are listed nearest first.
Clinicians by Medicare Specialty 3
Clinicians, nearest first (18)
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 Colorado Allergy And Asthma Centers, PC's NPI number?
The NPI number for Colorado Allergy And Asthma Centers, PC is 1417986134. It was assigned to this organization in the NPPES registry on July 3, 2006.
Where is Colorado Allergy And Asthma Centers, PC located?
Colorado Allergy And Asthma Centers, PC is located at 125 Rampart Way Suite 200, Denver, CO 80230. The listed phone number is (720) 858-7434.
What is Colorado Allergy And Asthma Centers, PC's specialty?
The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.
Is Colorado Allergy And Asthma Centers, PC enrolled in Medicare?
Yes. Colorado Allergy And Asthma Centers, PC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Colorado Allergy And Asthma Centers, PC?
According to the CMS Revalidation Reassignment List (October 2026 release), 18 clinicians in 3 Medicare specialties reassign their Medicare billing to Colorado Allergy And Asthma Centers, PC. A 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 the clinician's services. The largest specialties are Allergy/Immunology (9), Nurse Practitioner (6) and Pediatric Medicine (3). Of these, 4 practice at this address and 9 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Colorado Allergy And Asthma Centers, PC was last updated on July 13, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Colorado Allergy And Asthma Centers, Pc · NPI 1417986134
Specialist organization in Denver, Colorado. Organization record, active in the CMS NPPES registry since July 3, 2006.
## Identity
- **NPI:** 1417986134 (Entity type: Organization)
- **Enumerated:** July 3, 2006
- **Primary specialty:** Specialist · taxonomy 174400000X
- **Organization subpart:** No
- **Authorized official:** John Milewski, COO/CHIEF OPERATING OFFICER
## Practice location
- **Address:** 125 RAMPART WAY, SUITE 200, Denver, CO 80230-6406
- **Phone:** (720) 858-7434 · **Fax:** (720) 858-7605
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 18 clinicians in 3 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Allergy/Immunology (9), Nurse Practitioner (6), Pediatric Medicine (3); 4 practice at this address and 9 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 13, 2021
---
Source: [NPI Profile](https://npiprofile.com/npi/1417986134) · Data from the CMS NPPES public registry.