Douglas William Marx, M.D.

Primary specialty

Ophthalmology PhysicianTaxonomy code 207W00000X

License

R3778 Issued in AR

Practice address

140 Highway 201 N
Mountain Home, AR 72653-3158

Phone

(870) 424-2020

Fax

(870) 425-4840

NPI assigned

Jun 22, 2005

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

Other identifiers 2

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

HHS exclusion list flag

Flagged The directory lists this NPI on an HHS exclusion list. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.

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.

• Nca Anesthesia LLC

  • Certified Registered Nurse Anesthetist
  • Mountain Home, AR
  • NPI 1356823819
  NPD (past) Authorized official

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

{
    "created_epoch": "1119398400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785628800000",
    "number": "1437155686",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "140 HIGHWAY 201 N",
            "city": "MOUNTAIN HOME",
            "state": "AR",
            "postal_code": "726533158",
            "telephone_number": "870-424-2020"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "140 HIGHWAY 201 N",
            "city": "MOUNTAIN HOME",
            "state": "AR",
            "postal_code": "726533158",
            "telephone_number": "870-424-2020",
            "fax_number": "870-425-4840"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARX",
        "first_name": "DOUGLAS",
        "middle_name": "WILLIAM",
        "name_prefix": "Mr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-06-22",
        "last_updated": "2026-08-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "AR",
            "license": "R3778",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "PALMETTO GBA - RAILROAD MEDICARE",
            "identifier": "180032996",
            "state": null
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "113788001",
            "state": "AR"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Jeanne Marotta, CNP
• Lyndsey Marriott
• Megan Nicole Martin
• Sara Rebecca Martin, M.D.
• Jaclyn Renee Martinez
• Mary Wren OB/GYN, PLLC
• Jordan Claire Massie
• Harold Masterson, PSYEX
• Jordan Lucus Masterson, LCSW
• Grant Mathews, MD

• Ophthalmology Physician in Mountain Home, AR
• Providers in Mountain Home, AR by specialty
• Ophthalmology Physician in Arkansas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 2, 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.