Mary Ellen Bass, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

IA-0008025964 Issued in MO

Practice address

1 Barnes Jewish Hospital PLZ
Saint Louis, MO 63110-1003

Phone

(314) 747-3000

NPI assigned

Jun 14, 2025

Sex

Female

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 1

Medicare fee-for-service enrollment

Enrolled in MO

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.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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

{
    "created_epoch": "1749859200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1749859200000",
    "number": "1063308344",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4590 NASH WAY",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631101020",
            "telephone_number": "314-363-5634"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 BARNES JEWISH HOSPITAL PLZ",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631101003",
            "telephone_number": "314-747-3000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BASS",
        "first_name": "MARY",
        "middle_name": "ELLEN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-06-14",
        "last_updated": "2025-06-14",
        "certification_date": "2025-06-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "MO",
            "license": "IA-0008025964",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MOPRO",
            "identifier": "IA-0008025964",
            "state": "MO"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Holly Erin Basom, LPC
• Allyson Brackett Bass, M.D.
• Chelsea Ann Bass, M.A., CCC-SLP
• Karen Elizabeth Bass, RN MSN FNP-C
• Kelley Johanna Bass, PA-C
• Andrew Bassett, PHARMD
• George S Bassett, M.D.
• Gregg Bassett, M.D.
• Joy B. Bassett, L.C.S.W.
• Margaret Bassi, OT

• Emergency Medicine Physician in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Emergency Medicine Physician in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 14, 2025; 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.