DR. KIERAN CAOL MCMILLAN OD
NPI 1316525173
Optometrist in Zuni, NM
About Dr. Kieran Caol Mcmillan Od NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KIERAN CAOL MCMILLAN OD (NPI 1316525173) is an individual optometrist in Zuni, New Mexico, licensed in Colorado (OPT.0003722) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, is affiliated with Gallup Indian Medical Center, and is a graduate of Pacific University - College Of Optometry (2021).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Kieran Caol Mcmillan Od is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Kieran Mcmillan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Zuni, NM 87327
- Reassigned Medicare billing, Texas enrollment
- 103 clinicians in this Medicare group
Gallup, NM 87301
- Reassigned Medicare billing, Texas enrollment
- 618 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Gallup Indian Medical Center
Acute Care Hospitals · Gallup, NMPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 87327 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 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Kieran Mcmillan's NPI number?
The NPI number for Kieran Mcmillan is 1316525173. It was assigned to this individual provider in the NPPES registry on March 31, 2021.
Where is Kieran Mcmillan located?
Kieran Mcmillan practices at Route 301 North 21 B. Avenue, Zuni, NM 87327. The listed phone number is (505) 782-4431.
What is Kieran Mcmillan's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Kieran Mcmillan enrolled in Medicare?
Yes. Kieran Mcmillan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Kieran Mcmillan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kieran Mcmillan reassigns Medicare benefits to 2 organizations: Zuni Indian Hospital (Zuni, NM) and Dhhs,phs,naihs,gallup Indian Medical Center (Gallup, NM). Each 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 Kieran Mcmillan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Kieran Mcmillan affiliated with any hospitals?
According to CMS data, Kieran Mcmillan is affiliated with Gallup Indian Medical Center.
When was this NPI record last updated?
The NPPES record for Kieran Mcmillan was last updated on December 29, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Dr. Kieran Caol Mcmillan, OD · NPI 1316525173
Optometrist provider in Zuni, New Mexico. Individual provider, active in the CMS NPPES registry since March 31, 2021.
## Identity
- **NPI:** 1316525173 (Entity type: Individual)
- **Enumerated:** March 31, 2021
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** OPT.0003722 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** ROUTE 301 NORTH 21 B. AVENUE, Zuni, NM 87327
- **Phone:** (505) 782-4431
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Zuni Indian Hospital (NPI 1497843734, Zuni, NM); Dhhs,phs,naihs,gallup Indian Medical Center (NPI 1548439268, Gallup, NM) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Pacific University - College Of Optometry, class of 2021
## Record status
- **NPPES last updated:** December 29, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1316525173) · Data from the CMS NPPES public registry.