MACKEN YRUN-DUFFY DO
NPI 1649854605
Pediatrics in Tucson, AZ
About Macken Yrun-duffy Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MACKEN YRUN-DUFFY DO (NPI 1649854605) is an individual pediatrics provider in Tucson, Arizona, licensed in Arizona (R3526) and active in the NPI registry since May 2021. He is enrolled in Medicare PECOS and maintains a secondary practice location in Phoenix.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Macken Yrun-duffy Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Macken Yrun-duffy reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Mesa, AZ 85206
- Reassigned Medicare billing, Arizona enrollment
- Medicare enrollment name: Phoenix Children's Hospital
- 1,416 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 85724 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
TUCSON, AZ 85724
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 Macken Yrun-duffy's NPI number?
The NPI number for Macken Yrun-duffy is 1649854605. It was assigned to this individual provider in the NPPES registry on May 6, 2021.
Where is Macken Yrun-duffy located?
Macken Yrun-duffy practices at 1501 N Campbell Ave, Tucson, AZ 85724. The listed phone number is (520) 626-7432.
What is Macken Yrun-duffy's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Macken Yrun-duffy enrolled in Medicare?
Yes. Macken Yrun-duffy is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Macken Yrun-duffy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Macken Yrun-duffy reassigns Medicare benefits to Phoenix Children's Medical Group (Mesa, AZ). 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 Macken Yrun-duffy'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 Macken Yrun-duffy was last updated on January 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Macken Yrun-Duffy, DO · NPI 1649854605
Pediatrics physician in Tucson, Arizona. Individual provider, active in the CMS NPPES registry since May 6, 2021.
## Identity
- **NPI:** 1649854605 (Entity type: Individual)
- **Enumerated:** May 6, 2021
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** R3526 (Arizona)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1501 N CAMPBELL AVE, Tucson, AZ 85724-0001
- **Phone:** (520) 626-7432
## 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:** Phoenix Children's Medical Group (NPI 1487814240, Mesa, AZ), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 23, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1649854605) · Data from the CMS NPPES public registry.