Jeffrey Nathanson, MD

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

036105275 Issued in IL

Practice address

40 Skokie Blvd
Suite 110
Northbrook, IL 60062-1614

Phone

(224) 407-4400

Fax

(224) 407-2255

NPI assigned

May 25, 2006

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

Electronic endpoints 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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.

Opted out of Medicare

Yes, effective Jul 1, 2021 through Jul 1, 2027

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Interoperability endpoints

• Direct secure messaging: jnathanson18506@direct.northshore.org

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.

• Barry R. Goldberg, M.D. LLC

  • Internal Medicine Physician
  • Highland Park, IL
  • NPI 1659528784
  NPD (past)
• Comprehensive Gastrointestinal Health, LLC

  • Gastroenterology Physician
  • Northbrook, IL
  • NPI 1427541721
  NPD (past)

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

{
    "created_epoch": "1148515200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1758844800000",
    "number": "1972559615",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "950 TECHNOLOGY WAY",
            "address_2": "SUITE 250",
            "city": "LIBERTYVILLE",
            "state": "IL",
            "postal_code": "600485366",
            "telephone_number": "224-407-4400",
            "fax_number": "224-407-2255"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "40 SKOKIE BLVD",
            "address_2": "SUITE 110",
            "city": "NORTHBROOK",
            "state": "IL",
            "postal_code": "600621614",
            "telephone_number": "224-407-4400",
            "fax_number": "224-407-2255"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NATHANSON",
        "first_name": "JEFFREY",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-25",
        "last_updated": "2025-09-26",
        "certification_date": "2025-09-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "IL",
            "license": "036105275",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "jnathanson18506@direct.northshore.org",
            "affiliation": "N",
            "address_1": "1777 Green Bay Rd",
            "address_2": "Suite 200",
            "city": "Highland Park",
            "state": "IL",
            "country_code": "US",
            "postal_code": "600353297",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Joseph Nano, M.D.
• Oscar A Narvaez
• Ronald Nasadowski, DPM
• Natalia Kaczmarek LLC
• Natalia Kaczmarek PLLC
• Mario B. Natta, PH.D.
• Victoria Elaine Navarette
• Isabel Inez Navarro, M.S.
• Megan Navarro
• Nkem Ndem

• Gastroenterology Physician in Northbrook, IL
• Providers in Northbrook, IL by specialty
• Gastroenterology Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 26, 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; Opt Out Affidavits.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.