Marc K O'Connor, M.D.

Primary specialty

Pediatric Emergency Medicine (Pediatrics) PhysicianTaxonomy code 2080P0204X

License

6862 Issued in NV

Practice address

3186 S Maryland Pkwy
Las Vegas, NV 89109-2317

Phone

(888) 350-2911

Fax

(702) 369-5827

NPI assigned

Aug 25, 2005

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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": "1124928000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1659364594",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3006 S MARYLAND PKWY",
            "city": "LAS VEGAS",
            "state": "NV",
            "postal_code": "891092218",
            "telephone_number": "702-697-0082",
            "fax_number": "702-369-5827"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3186 S MARYLAND PKWY",
            "city": "LAS VEGAS",
            "state": "NV",
            "postal_code": "891092317",
            "telephone_number": "888-350-2911",
            "fax_number": "702-369-5827"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'CONNOR",
        "first_name": "MARC",
        "middle_name": "K",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-08-25",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "NV",
            "license": "6862",
            "primary": false
        },
        {
            "code": "2080P0204X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Emergency Medicine",
            "state": "NV",
            "license": "6862",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Devin Alexandria O'Connor-Jackson
• Lydia E O'Connor-Sanders, DO
• Deborah O'Connor
• Jaclyn T O'Connor, FNP-BC
• Jamie O'Connor
• Miwa Shiobara O'Connor, DO/MPH
• Nancy O'Connor
• Rhonda O'Connor
• Shanna O'Connor
• Taylor Shay O'Connor

• Pediatric Emergency Medicine (Pediatrics) Physician in Las Vegas, NV
• Providers in Las Vegas, NV by specialty
• Pediatric Emergency Medicine (Pediatrics) Physician in Nevada

• 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.