Individual provider Active NPI

Richard D Rosenfeld, MD

  • Internal Medicine Physician
  • Libertyville, IL
National Provider Identifier
1649214503
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
Practice address
1800 Hollister Drive
Suite 121
Libertyville, IL 60048
Phone
(847) 367-4040
Fax
(847) 367-4848
NPI assigned
Jun 15, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X IL Primary

Addresses

Primary practice location

1800 Hollister Drive
Suite 121
Libertyville, IL 60048

Mailing address

1800 Hollister Drive
Suite 121
Libertyville, IL 60048
Phone (847) 367-4040

Other identifiers 1

IdentifierTypeStateIssuer
04932355OtherILBLUE CROSS

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)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
036066990ILMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Martin P. Lanoff, MD., S.C. CurrentSince May 1, 2021 Accepting new patients

Locations

1800 Hollister Dr
Ste 121
Libertyville, IL 60048
Phone (847) 367-4040

Organizations & group practices 1

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.

NPI Registry JSON

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

{
    "created_epoch": "1150329600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1649214503",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1800 HOLLISTER DRIVE",
            "address_2": "SUITE 121",
            "city": "LIBERTYVILLE",
            "state": "IL",
            "postal_code": "60048",
            "telephone_number": "847-367-4040",
            "fax_number": "847-367-4848"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1800 HOLLISTER DRIVE",
            "address_2": "SUITE 121",
            "city": "LIBERTYVILLE",
            "state": "IL",
            "postal_code": "60048",
            "telephone_number": "847-367-4040",
            "fax_number": "847-367-4848"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ROSENFELD",
        "first_name": "RICHARD",
        "middle_name": "D",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-15",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE CROSS",
            "identifier": "04932355",
            "state": "IL"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Libertyville, IL

Sources for this page

  • 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.