Individual provider Active NPI

Benedict Stefan Landgren Mills, M.D.

  • Obstetrics & Gynecology Physician
  • Fort Defiance, AZ
National Provider Identifier
1497121099
Registry record updated May 18, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X
License
MD2024-1151 Issued in NM
Practice address
Corner of Route N12 and N7
Fort Defiance, AZ 86504-0649
Phone
(928) 729-8000
NPI assigned
Aug 18, 2015
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 18, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X
Obstetrics & Gynecology Physician 207V00000X MD2024-1151 NM Primary

Addresses

Primary practice location

Corner of Route N12 and N7
Fort Defiance, AZ 86504-0649

Mailing address

PO Box 649
Fort Defiance, AZ 86504-0649

Other identifiers 1

IdentifierTypeStateIssuer
9000210374MedicaidCO

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20251107003618 TX Practitioner - Obstetrics/Gynecology 6103316054 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Obstetrics/Gynecology
Education
Warren Alpert Medical School of Brown University, 2014
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

Corner of Route N12 and N7
Fdihb Inc.
Fort Defiance, AZ 86504-0649
Phone (928) 729-8082

PO Box
Suite 649
Fort Defiance, AZ 86504-0649

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
MD2024-1151NMMDObstetrics & Gynecology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
The Fort Defiance Indian Hospital Board, Incorporation CurrentSince Oct 13, 2025 Accepting new patients
Planned Parenthood of the Rocky Mountains, Inc Obstetrics & Gynecology Past Accepting new patients
Planned Parenthood of the Rocky Mountains, Inc Obstetrics & Gynecology Past Accepting new patients

Organizations & group practices 3

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1439856000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779062400000",
    "number": "1497121099",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 649",
            "city": "FORT DEFIANCE",
            "state": "AZ",
            "postal_code": "865040649"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "CORNER OF ROUTE N12 AND N7",
            "city": "FORT DEFIANCE",
            "state": "AZ",
            "postal_code": "865040649",
            "telephone_number": "928-729-8000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LANDGREN MILLS",
        "first_name": "BENEDICT",
        "middle_name": "STEFAN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-08-18",
        "last_updated": "2026-05-18",
        "certification_date": "2026-05-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "NM",
            "license": "MD2024-1151",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "9000210374",
            "state": "CO"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Fort Defiance, AZ

Sources for this page

Verify at the official NPI Registry.