NPIMap

Individual provider Active NPI

Elliot Welder, MD

  • Emergency Medicine Physician
  • Phoenix, AZ
National Provider Identifier
1396107827
Registry record updated Jan 21, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
58628 Issued in AZ
Practice address
1111 E McDowell Rd
Phoenix, AZ 85006-2612
Phone
(480) 500-2540
NPI assigned
Mar 23, 2016
Last updated
Jan 21, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 21, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X 58628 AZ Primary
Emergency Medicine Physician 207P00000X MED-PHYS-LIC-13550 MT

Addresses

Primary practice location

1111 E McDowell Rd
Phoenix, AZ 85006-2612

Mailing address

901 Rancho LN Ste 135
Las Vegas, NV 89106-3826
Phone (702) 383-7885

Other practice location 1

1800 W Charleston Blvd
Las Vegas, NV 89102-2329
Phone (702) 383-2000

Other practice location 2

310 Sunnyview Ln
Kalispell, MT 59901-3129
Phone (406) 752-1733

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address krmcmedicalrecords@krhdirect.org Kalispell Regional Medical Center Inc

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in AZ, MT2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20190822002019 AZ Practitioner - Emergency Medicine 7113213364 Reassigns benefits to 3 organizations
I20260225000841 MT Practitioner - Emergency Medicine 7113213364 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
University of Washington School of Medicine, 2016
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

1111 E McDowell Rd
Phoenix, AZ 85006-2612
Phone (954) 939-5000

310 Sunnyview LN
Kalispell, MT 59901-3129
Phone (406) 751-6488

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
58628AZMDEmergency Medicine Physician
MED-PHYS-LIC-13550MTMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Kalispell Regional Medical Center, Inc CurrentSince Apr 1, 2026 Accepting new patients
Banner Hospital Based Physicians Arizona LLC Current Accepting new patients
Emergency Professional Services PC Emergency Medicine CurrentSince Aug 15, 2019 Accepting new patients
Emergency Professional Services PC Emergency Medicine CurrentSince Aug 15, 2019 Accepting new patients
Emergency Professional Services PC Emergency Medicine Current Accepting new patients
Banner - University Hospital Based Physicians LLC CurrentSince Mar 1, 2020 Accepting new patients
Banner Hospital Based Physicians Arizona LLC CurrentSince Mar 1, 2020 Accepting new patients
Banner Hospital Based Physicians Arizona LLC CurrentSince Mar 1, 2020 Accepting new patients
Kalispell Regional Medical Center, Inc CurrentSince Apr 1, 2026 Accepting new patients
Banner - University Hospital Based Physicians LLC CurrentSince Mar 1, 2020 Accepting new patients

Locations

2050 W Southern Ave
Apache Junction, AZ 85120
Phone (480) 237-3200

645 E Missouri Ave
Ste 300
Phoenix, AZ 85012
Phone (602) 262-8917

9201 W Thomas Rd
Phoenix, AZ 85037
Phone (623) 327-4000

1111 E McDowell Rd
Phoenix, AZ 85006
Phone (602) 239-2000

75 Claremont St
Ste H
Kalispell, MT 59901
Phone (406) 752-7406

350 Heritage Way
Ste 2100
Kalispell, MT 59901
Phone (406) 257-8992

310 Sunnyview Ln
Kalispell, MT 59901
Phone (406) 751-5310

Interoperability endpoints

  • Direct secure messaging: krmcmedicalrecords@krhdirect.org

Organizations & group practices 11

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

Hospital & facility affiliations 9

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1458691200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768953600000",
    "number": "1396107827",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "901 RANCHO LN STE 135",
            "city": "LAS VEGAS",
            "state": "NV",
            "postal_code": "891063826",
            "telephone_number": "702-383-7885"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1111 E MCDOWELL RD",
            "city": "PHOENIX",
            "state": "AZ",
            "postal_code": "850062612",
            "telephone_number": "480-500-2540"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1800 W Charleston Blvd",
            "address_purpose": "LOCATION",
            "city": "Las Vegas",
            "state": "NV",
            "postal_code": "891022329",
            "country_code": "US",
            "telephone_number": "702-383-2000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "310 Sunnyview Ln",
            "address_purpose": "LOCATION",
            "city": "Kalispell",
            "state": "MT",
            "postal_code": "599013129",
            "country_code": "US",
            "telephone_number": "406-752-1733",
            "fax_number": "406-752-7854",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WELDER",
        "first_name": "ELLIOT",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-03-23",
        "last_updated": "2026-01-21",
        "certification_date": "2026-01-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "AZ",
            "license": "58628",
            "primary": true
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "MT",
            "license": "MED-PHYS-LIC-13550",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "krmcmedicalrecords@krhdirect.org",
            "affiliation": "Y",
            "affiliationName": "Kalispell Regional Medical Center Inc",
            "address_1": "310 Sunnyview Lane",
            "city": "Kalispell",
            "state": "MT",
            "country_code": "US",
            "postal_code": "599013129",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Phoenix, AZ

Sources for this page

Verify at the official NPI Registry.