Byron K Montgomery, ANP

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

ATP-000346 Issued in AR

Practice address

233 N Main St
Portland, AR 71663-9230

Phone

(870) 538-5414

Fax

(870) 538-5412

NPI assigned

Mar 2, 2011

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in AR

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: byron.montgomery@mhsi.eclinicaldirectplus.com

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.

• Mainline Health Systems, Inc

  • Federally Qualified Health Center (FQHC)
  • Little Rock, AR
  • NPI 1164264834

  AR

  Medicare reassignment NPD
• Mainline Health Systems, Inc

  • Federally Qualified Health Center (FQHC)
  • Monticello, AR
  • NPI 1669401501
  NPD
• Mainline Health Systems, Inc

  • Federally Qualified Health Center (FQHC)
  • Magnolia, AR
  • NPI 1972464337
  NPD
• Mainline Health Systems Inc

  • Federally Qualified Health Center (FQHC)
  • Portland, AR
  • NPI 1316106388
  NPD (past)

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

{
    "created_epoch": "1299024000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774569600000",
    "number": "1376841247",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "342 HIGHWAY 425 S",
            "city": "MONTICELLO",
            "state": "AR",
            "postal_code": "716554612",
            "telephone_number": "870-942-3000",
            "fax_number": "870-942-3005"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "233 N MAIN ST",
            "city": "PORTLAND",
            "state": "AR",
            "postal_code": "716639230",
            "telephone_number": "870-538-5414",
            "fax_number": "870-538-5412"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MONTGOMERY",
        "first_name": "BYRON",
        "middle_name": "K",
        "credential": "ANP",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2011-03-02",
        "last_updated": "2026-03-27",
        "certification_date": "2026-03-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "AR",
            "license": "ATP-000346",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "byron.montgomery@mhsi.eclinicaldirectplus.com",
            "affiliation": "N",
            "address_1": "233 N Main St",
            "city": "Portland",
            "state": "AR",
            "country_code": "US",
            "postal_code": "716639230",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Annie Marie Haynes, LCSW
• Meredith Leigh Hudson, LPC
• Mainline Health Systems Inc
• Mainline Health Systems, Inc
• Mainline Health Systems, Inc
• Portland Drug Inc.
• Portland Drug LLC
• Jordan Mackenzie Young, PHARMD

• All providers in Portland, AR
• Nurse Practitioner in Arkansas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 27, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.