DR. BENEDICT STEFAN LANDGREN MILLS M.D.
NPI 1497121099
Obstetrics & Gynecology in Fort Defiance, AZ
About Dr. Benedict Stefan Landgren Mills M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. BENEDICT STEFAN LANDGREN MILLS M.D. (NPI 1497121099) is an individual obstetrics & gynecology provider in Fort Defiance, Arizona, licensed in New Mexico (MD2024-1151) and active in the NPI registry since August 2015. He is enrolled in Medicare PECOS and is a graduate of Warren Alpert Medical School Of Brown University (2014).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
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. Benedict Stefan Landgren Mills 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 Reassignment
Medicare enrollment records show Benedict Landgren Mills reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Fort Defiance, AZ 86504
- Reassigned Medicare billing, Texas enrollment
- 518 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 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 Benedict Landgren Mills's NPI number?
The NPI number for Benedict Landgren Mills is 1497121099. It was assigned to this individual provider in the NPPES registry on August 18, 2015.
Where is Benedict Landgren Mills located?
Benedict Landgren Mills practices at Corner Of Route N12 And N7, Fort Defiance, AZ 86504. The listed phone number is (928) 729-8000.
What is Benedict Landgren Mills's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Benedict Landgren Mills enrolled in Medicare?
Yes. Benedict Landgren Mills 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 organization bills Medicare for Benedict Landgren Mills's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Benedict Landgren Mills reassigns Medicare benefits to The Fort Defiance Indian Hospital Board, Incorporation (Fort Defiance, 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 Benedict Landgren Mills'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 Benedict Landgren Mills was last updated on May 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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. Benedict Stefan Landgren Mills, M.D. · NPI 1497121099
Obstetrics & Gynecology physician in Fort Defiance, Arizona. Individual provider, active in the CMS NPPES registry since August 18, 2015.
## Identity
- **NPI:** 1497121099 (Entity type: Individual)
- **Enumerated:** August 18, 2015
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** MD2024-1151 (New Mexico)
- **Sole proprietor:** No
## Practice location
- **Address:** CORNER OF ROUTE N12 AND N7, Fort Defiance, AZ 86504-0649
- **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:** The Fort Defiance Indian Hospital Board, Incorporation (NPI 1477876639, Fort Defiance, AZ), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Warren Alpert Medical School Of Brown University, class of 2014
## Record status
- **NPPES last updated:** May 18, 2026
- **Other identifiers:** Medicaid 9000210374 (CO)
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Source: [NPI Profile](https://npiprofile.com/npi/1497121099) · Data from the CMS NPPES public registry.