Seth W Marcus, M.S.

Primary specialty

Genetic Counselor (M.S.)Taxonomy code 170300000X

Practice address

1875 Dempster St
Suite 310
Park Ridge, IL 60068-1186

Phone

(847) 723-7705

Fax

(847) 723-8675

NPI assigned

Oct 13, 2005

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Master of Science

Practice roles

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Advocate Health and Hospitals Corporation

  • Children's Hospital
  • Oak Lawn, IL
  • NPI 1508315516
  NPD (past)

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

{
    "created_epoch": "1129161600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1275521122",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1875 DEMPSTER ST",
            "address_2": "SUITE 310",
            "city": "PARK RIDGE",
            "state": "IL",
            "postal_code": "600681186",
            "telephone_number": "847-723-7705",
            "fax_number": "847-723-8675"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1875 DEMPSTER ST",
            "address_2": "SUITE 310",
            "city": "PARK RIDGE",
            "state": "IL",
            "postal_code": "600681186",
            "telephone_number": "847-723-7705",
            "fax_number": "847-723-8675"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARCUS",
        "first_name": "SETH",
        "middle_name": "W",
        "credential": "M.S.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-10-13",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "170300000X",
            "taxonomy_group": "",
            "desc": "Genetic Counselor, MS",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Megan Manning, DPT
• Sandra Clementina Manogura, FNP-BC
• Rosanne Helene Manos, SLPA/L
• Jamel Izzuddin Mansur, MD
• Marando Performance and Rehabilitation, PLLC
• Slawomir Marecik, MD
• Marek Walczyk MD SC
• Ava Marie Margitza
• Maria M Loukas DDS LTD
• Tara Christman Maring, LPC

• Genetic Counselor (M.S.) in Park Ridge, IL
• Providers in Park Ridge, IL by specialty
• Genetic Counselor (M.S.) in Illinois

• 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.