Individual provider Active NPI

Joseph Reznicek, MD

  • Anatomic Pathology & Clinical Pathology Physician
  • Chicago, IL
National Provider Identifier
1649806670
Registry record updated Jun 13, 2020
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anatomic Pathology & Clinical Pathology PhysicianTaxonomy code 207ZP0102X
License
125076554 Issued in IL
Practice address
251 E Huron St
Chicago, IL 60611-3055
Phone
(312) 926-2000
NPI assigned
Mar 21, 2020
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 13, 2020

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X 125076554 IL Primary
Student in an Organized Health Care Education/Training Program 390200000X

Addresses

Primary practice location

251 E Huron St
Chicago, IL 60611-3055

Mailing address

251 E Huron St
Chicago, IL 60611-3055

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WI
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
I20250602001918 WI Practitioner - Pathology 8820520281 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Pathology
Education
Creighton University School of Medicine, 2020
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Great Lakes Pathologists SCGroup PAC ID 7315850682, 55 clinicians

Practice addresses (Care Compare)

8901 W Lincoln Ave
West Allis Memorial Hospital
West Allis, WI 53227-2409
Phone (414) 328-7950

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
125076554ILMDAnatomic Pathology & Clinical Pathology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
A2Cl Services, LLC Current Accepting new patients
Great Lakes Pathologists SC Anatomic Pathology & Clinical Pathology CurrentSince Jul 15, 2025 Accepting new patients

Locations

252 McHenry St
Burlington, WI 53105
Phone (262) 763-2411

W3985 Highway NN
Elkhorn, WI 53121
Phone (262) 741-2000

2845 Greenbrier Rd
Green Bay, WI 54311
Phone (920) 288-3388

855 N Westhaven Dr
Oshkosh, WI 54904
Phone (920) 451-5643

8901 W Lincoln Ave
West Allis, WI 53227
Phone (414) 328-6000

Organizations & group practices 2

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.

Hospital & facility affiliations 7

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1584748800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1592006400000",
    "number": "1649806670",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "251 E HURON ST",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606113055"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "251 E HURON ST",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606113055",
            "telephone_number": "312-926-2000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "REZNICEK",
        "first_name": "JOSEPH",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-03-21",
        "last_updated": "2020-06-13",
        "certification_date": "2020-06-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207ZP0102X",
            "taxonomy_group": "",
            "desc": "Pathology, Anatomic Pathology & Clinical Pathology",
            "state": "IL",
            "license": "125076554",
            "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 Chicago, IL

Sources for this page

Verify at the official NPI Registry.