Allen Ross Morton, M.D.

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

J5843 Issued in TX

Practice address

703 E Marshall Ave
#4002
Longview, TX 75601-5500

Phone

(903) 247-2050

Fax

(903) 247-2054

NPI assigned

Feb 28, 2006

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

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

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.

• Horizon Anesthesia Associates PA

  • Anesthesiology Physician
  • Longview, TX
  • NPI 1811982481
  NPD (past)

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

{
    "created_epoch": "1141084800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1164499018",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "703 E MARSHALL AVE",
            "address_2": "#4002",
            "city": "LONGVIEW",
            "state": "TX",
            "postal_code": "756015500",
            "telephone_number": "903-247-2050",
            "fax_number": "903-247-2054"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "703 E MARSHALL AVE",
            "address_2": "#4002",
            "city": "LONGVIEW",
            "state": "TX",
            "postal_code": "756015500",
            "telephone_number": "903-247-2050",
            "fax_number": "903-247-2054"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MORTON",
        "first_name": "ALLEN",
        "middle_name": "ROSS",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-02-28",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "TX",
            "license": "J5843",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Charlotte Morgan
• Gregg Harston Morgan, PHARMD
• Justin P. Morris, DO
• Loretta Carol Morris
• Michael W Morris, MD
• Margaret L Morton, MD
• Randy Loren Morton, MD
• Ronald Glen Morton, MD
• Rowena Morton
• Troy Don Morton, D.D.S.

• Anesthesiology Physician in Longview, TX
• Providers in Longview, TX by specialty
• Anesthesiology Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.