Stephen Liam O'Connor, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

01100294A Issued in IN

Practice address

8333 Naab Rd Ste 420
Indianapolis, IN 46260-1992

Phone

(317) 338-6666

Fax

(317) 338-9903

NPI assigned

Mar 27, 2023

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

Medicare fee-for-service enrollment

Enrolled in VA

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

Interoperability endpoints

• Direct secure messaging: soconnor571689@direct.healthsystem.virginia.edu

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

{
    "created_epoch": "1679875200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1881398758",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8333 NAAB RD STE 420",
            "city": "INDIANAPOLIS",
            "state": "IN",
            "postal_code": "462601992",
            "telephone_number": "317-338-6666",
            "fax_number": "317-338-9903"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8333 NAAB RD STE 420",
            "city": "INDIANAPOLIS",
            "state": "IN",
            "postal_code": "462601992",
            "telephone_number": "317-338-6666",
            "fax_number": "317-338-9903"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1215 Lee St",
            "address_purpose": "LOCATION",
            "city": "Charlottesville",
            "state": "VA",
            "postal_code": "229080816",
            "country_code": "US",
            "telephone_number": "434-924-1931",
            "fax_number": "434-244-4451",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "O'CONNOR",
        "first_name": "STEPHEN",
        "middle_name": "LIAM",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2023-03-27",
        "last_updated": "2026-07-13",
        "certification_date": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IN",
            "license": "01100294A",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• John Andrew O'Connor, M.D.
• Mary O'Connor, MD
• Megan O'Connor, P.T.
• Michele A O'Connor, NP
• Sean Joseph O'Connor, M.D.
• Suzanne S O'Connor, AU.D.
• Thomas O'Connor, MD
• Pamela Kulaga O'Dea, MD
• Monica Rani O'Doherty, DO
• Daniel P O'Donnell, MD

• Internal Medicine Physician in Indianapolis, IN
• Providers in Indianapolis, IN by specialty
• Internal Medicine Physician in Indiana

• 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.
• 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.