NATHAN ZACHARIAS M.D.
NPI 1902255847
Family Medicine in Fort Defiance, AZ
About Nathan Zacharias M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NATHAN ZACHARIAS M.D. (NPI 1902255847) is an individual family medicine provider in Fort Defiance, Arizona, licensed in California (A154803) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS and is a graduate of Drexel University College Of Medicine (2016).
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
Nathan Zacharias M.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
4Medicare enrollment records show Nathan Zacharias reassigns Medicare billing to 4 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
Denver, CO 80205
- Reassigned Medicare billing, Utah enrollment
- Medicare enrollment name: Cirrusmd Medical Group Of Delaware PA
- 3 clinicians in this Medicare group
Midvale, UT 84047
- Reassigned Medicare billing, Utah enrollment
- 12 clinicians in this Medicare group
Dallas, TX 75219
- Reassigned Medicare billing, Texas enrollment
- 55 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
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.
Physician 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 Nathan Zacharias's NPI number?
The NPI number for Nathan Zacharias is 1902255847. It was assigned to this individual provider in the NPPES registry on June 10, 2016.
Where is Nathan Zacharias located?
Nathan Zacharias practices at Corner Of Route N12 And N7, Fort Defiance, AZ 86504. The listed phone number is (928) 729-8000.
What is Nathan Zacharias's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Nathan Zacharias enrolled in Medicare?
Yes. Nathan Zacharias 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 Nathan Zacharias's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nathan Zacharias reassigns Medicare benefits to 4 organizations: The Fort Defiance Indian Hospital Board, Incorporation (Fort Defiance, AZ), Cirrusmd Medical Group Of Delaware, P.A. (Denver, CO), Utah Partners For Health (Midvale, UT) and Cmdpn Medical Group Of Texas, P.A. (Dallas, TX). 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 Nathan Zacharias's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nathan Zacharias accept?
Health plans from Blue Cross Blue Shield of Arizona list Nathan Zacharias 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 Nathan Zacharias was last updated on January 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.
# Nathan Zacharias, M.D. · NPI 1902255847
Family Medicine physician in Fort Defiance, Arizona. Individual provider, active in the CMS NPPES registry since June 10, 2016.
## Identity
- **NPI:** 1902255847 (Entity type: Individual)
- **Enumerated:** June 10, 2016
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** A154803 (California)
- **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, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): The Fort Defiance Indian Hospital Board, Incorporation (NPI 1477876639, Fort Defiance, AZ); Cirrusmd Medical Group Of Delaware, P.A. (NPI 1922664200, Denver, CO); Utah Partners For Health (NPI 1508299892, Midvale, UT); Cmdpn Medical Group Of Texas, P.A. (NPI 1174082150, Dallas, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Drexel University College Of Medicine, class of 2016
## Record status
- **NPPES last updated:** January 21, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1902255847) · Data from the CMS NPPES public registry.