Individual provider Active NPI

Spencer Mossack, MD

  • Urology Physician
  • Libertyville, IL
National Provider Identifier
1265061980
Registry record updated Jun 30, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Urology PhysicianTaxonomy code 208800000X
License
1265061980 Issued in IL
Practice address
1800 Hollister Dr Ste 107
Libertyville, IL 60048-5265
Phone
(847) 295-0010
NPI assigned
Apr 4, 2020
Last updated
Jun 30, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 30, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Urology Physician 208800000X 1265061980 IL Primary

Addresses

Primary practice location

1800 Hollister Dr Ste 107
Libertyville, IL 60048-5265

Mailing address

755 Seven Ponds Towd Rd
Southampton, NY 11968-5516

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL
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

Enrollment IDStateProvider typePAC IDDetails
I20260622001394 IL Practitioner - Urology 4284037235

Care Compare profile

Medicare Care Compare
Specialty
Urology
Education
Other, 2021
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

2245 Enterprise Dr
Suite 4506
Westchester, IL 60154-5803

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
1265061980ILMDUrology Physician

Interoperability endpoints

  • Direct secure messaging: spencer.mossack@stonybrookmedicine.edu

NPI Registry JSON

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

{
    "created_epoch": "1585958400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782777600000",
    "number": "1265061980",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "755 SEVEN PONDS TOWD RD",
            "city": "SOUTHAMPTON",
            "state": "NY",
            "postal_code": "119685516"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1800 HOLLISTER DR STE 107",
            "city": "LIBERTYVILLE",
            "state": "IL",
            "postal_code": "600485265",
            "telephone_number": "847-295-0010"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MOSSACK",
        "first_name": "SPENCER",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-04-04",
        "last_updated": "2026-06-30",
        "certification_date": "2026-06-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208800000X",
            "taxonomy_group": "",
            "desc": "Urology",
            "state": "IL",
            "license": "1265061980",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Libertyville, IL

Sources for this page

Verify at the official NPI Registry.