Individual provider Active NPI

Sean Patrick Lenihan, DO

  • Surgery Physician
  • Park Ridge, IL
National Provider Identifier
1619771268
Registry record updated Jun 16, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Surgery PhysicianTaxonomy code 208600000X
License
125086459 Issued in IL
Practice address
1775 Dempster St
Park Ridge, IL 60068-1143
Phone
(847) 723-2210
Fax
(847) 723-3394
NPI assigned
Apr 2, 2025
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 16, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Surgery Physician 208600000X 125086459 IL Primary
Student in an Organized Health Care Education/Training Program 390200000X

Addresses

Primary practice location

1775 Dempster St
Park Ridge, IL 60068-1143

Mailing address

19 Kings Crossing CT
Saint Louis, MO 63129-5064
Phone (314) 799-9442

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled
Credentials
Doctor of Osteopathy

State licenses

LicenseStateTypeSpecialty
125086459ILMDSurgery Physician

NPI Registry JSON

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

{
    "created_epoch": "1743552000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750032000000",
    "number": "1619771268",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "19 KINGS CROSSING CT",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631295064",
            "telephone_number": "314-799-9442"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1775 DEMPSTER ST",
            "city": "PARK RIDGE",
            "state": "IL",
            "postal_code": "600681143",
            "telephone_number": "847-723-2210",
            "fax_number": "847-723-3394"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LENIHAN",
        "first_name": "SEAN",
        "middle_name": "PATRICK",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2025-04-02",
        "last_updated": "2025-06-16",
        "certification_date": "2025-06-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "IL",
            "license": "125086459",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Park Ridge, IL

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 16, 2025; 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.