Madison O'Brien, MD

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

License

14281722-1205 Issued in UT

Practice address

4301 W Markham St # 518
Little Rock, AR 72205-7101

Phone

(501) 526-7569

NPI assigned

Apr 22, 2022

Last updated

May 13, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other names 1

• Madison Caldwell Former name

Electronic endpoints 2

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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.

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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

{
    "created_epoch": "1650585600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778630400000",
    "number": "1124762505",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 27128",
            "city": "SALT LAKE CITY",
            "state": "UT",
            "postal_code": "841270128"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4301 W MARKHAM ST # 518",
            "city": "LITTLE ROCK",
            "state": "AR",
            "postal_code": "722057101",
            "telephone_number": "501-526-7569"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "8th Ave C St",
            "address_purpose": "LOCATION",
            "city": "Salt Lake City",
            "state": "UT",
            "postal_code": "841430001",
            "country_code": "US",
            "telephone_number": "801-408-3460",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "O'BRIEN",
        "first_name": "MADISON",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-04-22",
        "last_updated": "2026-05-13",
        "certification_date": "2026-05-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "UT",
            "license": "14281722-1205",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "CONNECT",
            "endpointTypeDescription": "CONNECT URL",
            "endpoint": "https://esmd.officeally.io:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRRequest_Service",
            "affiliation": "Y",
            "endpointDescription": "2.16.840.1.113883.3.2019.3",
            "affiliationName": "Bluemark LLC/ Office Ally",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CMS esMD eMDR",
            "address_1": "1300 SE Cardinal Ct Ste 190",
            "city": "Vancouver",
            "state": "WA",
            "country_code": "US",
            "postal_code": "986839683",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mgcaldwell@uams.edu",
            "affiliation": "N",
            "endpointDescription": "email",
            "address_1": "4301 W Markham St # 518",
            "city": "Little Rock",
            "state": "AR",
            "country_code": "US",
            "postal_code": "722057101",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "MADISON",
            "last_name": "CALDWELL",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Nxgen Stars- Ar
• Brian Ratemo Nyangoso
• O. H. Miller, D.D.S.
• O'Brian Healthcare Inc
• Kimberly Paige O'Brien
• Marcus D O'Brien, M.D.
• Jacob Beattie O'Connor, MD, MS
• Kate Wohlleben O'Connor, PHARMD
• Melissa Dawn O'Dell, LCSW, LASW
• Stacii Jermaine O'Donald

• Obstetrics & Gynecology Physician in Little Rock, AR
• Providers in Little Rock, AR by specialty
• Obstetrics & Gynecology Physician in Arkansas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 13, 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.