Individual provider Active NPI

Matthew Reidy Leach, M.D.

  • Neurology Physician
  • Chicago, IL
National Provider Identifier
1467849513
Registry record updated Mar 2, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Neurology PhysicianTaxonomy code 2084N0400X
License
036-154712 Issued in IL
Practice address
4440 W. 95TH Street, Suite Aip
Chicago, IL 60453-0001
Phone
(219) 677-7866
NPI assigned
Apr 15, 2015
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 2, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Neurology Physician 2084N0400X 036-154712 IL Primary

Addresses

Primary practice location

4440 W. 95TH Street, Suite Aip
Chicago, IL 60453-0001

Mailing address

29373 Network PL
Chicago, IL 60673-1293
Phone (847) 390-5900

Other practice location 1

1425 N Randall Rd
Elgin, IL 60123-2300
Phone (708) 283-5500

Other practice location 2

450 W Highway 22
Barrington, IL 60010-1919
Phone (708) 283-5500

Other practice location 3

3815 Highland Ave
Downers Grove, IL 60515-1500
Phone (708) 283-5500

Other practice location 4

1775 Dempster St
Park Ridge, IL 60068-1143
Phone (708) 283-5500

Electronic endpoints 3

TypeEndpointUseAffiliation
FHIR URL https://epicfhir.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/
CONNECT URL https://esmd.abilitynetwork.com:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRRequest_Service Other ABILITY Network
Direct Messaging Address mleach305621@direct.myadvocateaurora.org Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in PA, IL2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20200715000275 PA Practitioner - Critical Care (Intensivists)Practitioner - PsychiatryPractitioner - Pulmonary Disease 4183960271 Reassigns benefits to 1 organization
I20210608002300 IL Practitioner - Neurology 4183960271 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Neurology
Education
University of Michigan Medical School, 2015
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Advocate Health and Hospitals CorporationGroup PAC ID 7810800935, shared by 39 NPIs, 3,081 clinicians

Practice addresses (Care Compare)

4440 W 95TH St
Oak Lawn, IL 60453-2600

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Pacemaker insertion or repair1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
036-154712ILMDNeurology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Advocate Health and Hospitals Corporation CurrentSince Jul 1, 2021 Accepting new patients
Upmc Community Medcine Inc CurrentSince Jul 1, 2020 Accepting new patients
Advocate Health and Hospitals Corporation CurrentSince Jul 1, 2021 Accepting new patients
Upmc Community Medicine, Inc Current Accepting new patients
Advocate Health and Hospitals Corporation CurrentSince Nov 1, 2024 Accepting new patients
Advocate Health and Hospitals Corporation Current Accepting new patients
Upmc Community Medicine Inc CurrentSince Jul 1, 2020 Accepting new patients

Locations

450 W Il Route 22
Ste Aip
Barrington, IL 60010
Phone (708) 283-5500

214 McHenry Rd
Buffalo Grove, IL 60089
Phone (847) 459-1160

28592 Network Pl
Chicago, IL 60673

29373 Network Pl
Chicago, IL 60673

3815 Highland Ave
Downers Grove, IL 60515
Phone (630) 275-5900

1425 N Randall Rd
Elgin, IL 60123
Phone (224) 783-5437

4440 W 95th St
Oak Lawn, IL 60453
Phone (708) 346-5520

4440 W 95th St
Ste Aip
Oak Lawn, IL 60453
Phone (708) 684-8000

1775 W Dempster St
Park Ridge, IL 60068
Phone (847) 723-5150

450 W State Route 22
South Barrington, IL 60010
Phone (847) 381-0123

339 6th Ave
Fl 5
Pittsburgh, PA 15222
Phone (412) 560-8762

200 Delafield Rd
Ste 2040
Pittsburgh, PA 15215
Phone (412) 782-5529

2 Hot Metal St
#1
Pittsburgh, PA 15203
Phone (412) 432-5866

Organizations & group practices 7

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 2

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": "1429056000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772409600000",
    "number": "1467849513",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "29373 NETWORK PL",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606731293",
            "telephone_number": "847-390-5900"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4440 W. 95TH STREET, SUITE AIP",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "604530001",
            "telephone_number": "219-677-7866"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1425 N Randall Rd",
            "address_purpose": "LOCATION",
            "city": "Elgin",
            "state": "IL",
            "postal_code": "601232300",
            "country_code": "US",
            "telephone_number": "708-283-5500",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "450 W Highway 22",
            "address_purpose": "LOCATION",
            "city": "Barrington",
            "state": "IL",
            "postal_code": "600101919",
            "country_code": "US",
            "telephone_number": "708-283-5500",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "3815 Highland Ave",
            "address_purpose": "LOCATION",
            "city": "Downers Grove",
            "state": "IL",
            "postal_code": "605151500",
            "country_code": "US",
            "telephone_number": "708-283-5500",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1775 Dempster St",
            "address_purpose": "LOCATION",
            "city": "Park Ridge",
            "state": "IL",
            "postal_code": "600681143",
            "country_code": "US",
            "telephone_number": "708-283-5500",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LEACH",
        "first_name": "MATTHEW",
        "middle_name": "REIDY",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-04-15",
        "last_updated": "2026-03-02",
        "certification_date": "2026-03-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "IL",
            "license": "036-154712",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicfhir.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "4440 W 95th St",
            "city": "Oak Lawn",
            "state": "IL",
            "country_code": "US",
            "postal_code": "604532600",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "CONNECT",
            "endpointTypeDescription": "CONNECT URL",
            "endpoint": "https://esmd.abilitynetwork.com:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRRequest_Service",
            "affiliation": "Y",
            "endpointDescription": "2.16.840.1.113883.3.667.2",
            "affiliationName": "ABILITY Network",
            "use": "OTHER",
            "useDescription": "Other",
            "useOtherDescription": "CMS esMD eMDR",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "64 S Price Rd Ste B",
            "city": "Brownsville",
            "state": "TX",
            "country_code": "US",
            "postal_code": "785212459",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mleach305621@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "4440 W 95th St",
            "city": "Oak Lawn",
            "state": "IL",
            "country_code": "US",
            "postal_code": "604532600",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Chicago, IL

Sources for this page

Verify at the official NPI Registry.