DR. JEFFREY ALAN DUNCAN O.D.
NPI 1669432365
Optometrist in Fort Defiance, AZ
About Dr. Jeffrey Alan Duncan O.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JEFFREY ALAN DUNCAN O.D. (NPI 1669432365) is an individual optometrist in Fort Defiance, Arizona, licensed in Pennsylvania (OE 007276T) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Cherokee Indian Hospital Authority, and is a graduate of Pennsylvania College Of Optometry (1991).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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. Jeffrey Alan Duncan O.d. 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
5Medicare enrollment records show Jeffrey Duncan reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fort Defiance, AZ 86504
- Reassigned Medicare billing, Texas enrollment
- 518 clinicians in this Medicare group
Tucson, AZ 85746
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: Ton Sells Hospital
- 349 clinicians in this Medicare group
Tucson, AZ 85746
- Reassigned Medicare billing, Texas enrollment
- 286 clinicians in this Medicare group
Sells, AZ 85634
- Reassigned Medicare billing, Texas enrollment
- 268 clinicians in this Medicare group
Sells, AZ 85634
- Reassigned Medicare billing, Texas enrollment
- 94 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Cherokee Indian Hospital Authority
Acute Care Hospitals · Cherokee, NCPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 86504 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.
FORT DEFIANCE, AZ 86504
FORT DEFIANCE, AZ 86504
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 Jeffrey Duncan's NPI number?
The NPI number for Jeffrey Duncan is 1669432365. It was assigned to this individual provider in the NPPES registry on March 25, 2006.
Where is Jeffrey Duncan located?
Jeffrey Duncan practices at Corner Of Route N12 And N7, Fort Defiance, AZ 86504. The listed phone number is (928) 729-8000.
What is Jeffrey Duncan's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Jeffrey Duncan enrolled in Medicare?
Yes. Jeffrey Duncan 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 Jeffrey Duncan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jeffrey Duncan reassigns Medicare benefits to 5 organizations: The Fort Defiance Indian Hospital Board, Incorporation (Fort Defiance, AZ), San Xavier District Office (Tucson, AZ), Ton San Xavier Health Center (Tucson, AZ), Ton San Simon Health Center (Sells, AZ) and Ton Santa Rosa Health Center (Sells, AZ). 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 Jeffrey Duncan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jeffrey Duncan accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Buckeye Health Plan, Anthem Blue Cross and Blue Shield and Blue Cross Blue Shield of Wyoming and 14 other insurers list Jeffrey Duncan 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.
Is Jeffrey Duncan affiliated with any hospitals?
According to CMS data, Jeffrey Duncan is affiliated with Cherokee Indian Hospital Authority.
When was this NPI record last updated?
The NPPES record for Jeffrey Duncan was last updated on June 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Dr. Jeffrey Alan Duncan, O.D. · NPI 1669432365
Optometrist provider in Fort Defiance, Arizona. Individual provider, active in the CMS NPPES registry since March 25, 2006.
## Identity
- **NPI:** 1669432365 (Entity type: Individual)
- **Enumerated:** March 25, 2006
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** OE 007276T (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** CORNER OF ROUTE N12 AND N7, Fort Defiance, AZ 86504
- **Phone:** (928) 729-8000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): The Fort Defiance Indian Hospital Board, Incorporation (NPI 1477876639, Fort Defiance, AZ); San Xavier District Office (NPI 1073694832, Tucson, AZ); Ton San Xavier Health Center (NPI 1437157302, Tucson, AZ); Ton San Simon Health Center (NPI 1588834998, Sells, AZ); Ton Santa Rosa Health Center (NPI 1770581639, Sells, AZ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Pennsylvania College Of Optometry, class of 1991
## Record status
- **NPPES last updated:** June 19, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1669432365) · Data from the CMS NPPES public registry.