Mary Mackenzie O'Brien, PA-S

Primary specialty

Student in an Organized Health Care Education/Training ProgramTaxonomy code 390200000X

Practice address

650 Huebner Rd
Fort Riley, KS 66442-4030

Phone

(785) 239-7973

NPI assigned

Aug 31, 2026

Sex

Female

Sole proprietor

Yes

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

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

{
    "created_epoch": "1788134400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788134400000",
    "number": "1518875772",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "173 WESTGATE DR",
            "city": "ELGIN",
            "state": "IL",
            "postal_code": "601234940",
            "telephone_number": "224-639-7944"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "650 HUEBNER RD",
            "city": "FORT RILEY",
            "state": "KS",
            "postal_code": "664424030",
            "telephone_number": "785-239-7973"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'BRIEN",
        "first_name": "MARY",
        "middle_name": "MACKENZIE",
        "credential": "PA-S",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2026-08-31",
        "last_updated": "2026-08-31",
        "certification_date": "2026-08-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Rossmichael Noffsinger, LCSW
• Nancy Noyes
• Maria D Nunez
• Nathan Wayne Nutter
• Kathleen Marie O'Brien, MD
• Sara N O'Brien, M.S., BCBA
• Maevelyn Andalis O'Donnell, CRNA
• Mark S Ochoa, M.D.
• Guillermo Ochoabarragan
• Timothy Oelke, REGISTERED NURSE

• Student in an Organized Health Care Education/Training Program in Fort Riley, KS
• Providers in Fort Riley, KS by specialty
• Student in an Organized Health Care Education/Training Program in Kansas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 31, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.

Verify at the official NPI Registry.