Individual provider Active NPI

Gary L Loy

  • Maternal & Fetal Medicine Physician
  • Chicago, IL
National Provider Identifier
1851404073
Registry record updated Sep 3, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Maternal & Fetal Medicine PhysicianTaxonomy code 207VM0101X
License
01090808A Issued in IN
Practice address
5841 S Maryland Ave
Chicago, IL 60637-1443
Phone
(888) 824-0200
NPI assigned
Aug 15, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 3, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Maternal & Fetal Medicine Physician 207VM0101X 036065416 IL
Maternal & Fetal Medicine Physician 207VM0101X 01090808A IN Primary

Addresses

Primary practice location

5841 S Maryland Ave
Chicago, IL 60637-1443

Mailing address

150 Harvester Dr
Suite 300
Burr Ridge, IL 60527-5919

Other practice location 1

8081 Township Line Rd Ste 203
Indianapolis, IN 46260-2189
Phone (317) 415-8100

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address gloy208157@uchospital.direct-ci.com University of Chicago Physicians Group

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL, IN2 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
I20100603000578 IL Practitioner - Obstetrics/Gynecology 1355470196 Reassigns benefits to 7 organizations
I20240226000185 IN Practitioner - Obstetrics/Gynecology 1355470196 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Obstetrics/Gynecology
Education
University of Chicago, Pritzker School of Medicine, 1981
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Carle Health Care IncorporatedGroup PAC ID 3577515774, 1,592 clinicians

Practice addresses (Care Compare)

611 W Park St
Urbana, IL 61801-2500

611 W Park St
Urbana, IL 61801-2501
Phone (888) 712-2753

Hospital & facility affiliations

  • Carle Foundation Hospital Hospital, Urbana, IL, CCN 140091

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
036065416ILMDMaternal & Fetal Medicine Physician
01090808AINMDMaternal & Fetal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
University of Chicago CurrentSince Feb 26, 2021 Accepting new patients
Richland Memorial Hospital, Inc CurrentSince May 26, 2020 Accepting new patients
Rockford Health Physicians CurrentSince Jun 10, 2025 Accepting new patients
Carle Health Care Incorporated CurrentSince Nov 22, 2019 Accepting new patients
St Vincent Pediatric Subspecialties Maternal & Fetal Medicine CurrentSince Aug 1, 2025 Accepting new patients
Richland Memorial Hospital, Inc CurrentSince May 26, 2020 Accepting new patients
Advocate Health and Hospitals Corporation CurrentSince Jan 1, 2014 Accepting new patients
The University of Chicago Medical Center CurrentSince Feb 26, 2021 Accepting new patients
Hoopeston Community Memorial Hospital Current Accepting new patients
Hoopeston Community Memorial Hospital CurrentSince Nov 22, 2019 Accepting new patients
Hoopeston Community Memorial Hospital CurrentSince Nov 22, 2019 Accepting new patients
Advocate Health and Hospitals Corporation CurrentSince Jan 1, 2014 Accepting new patients
St Vincent Pediatric Subspecialties CurrentSince Aug 1, 2025 Accepting new patients
Richland Memorial Hospital, Inc Current Accepting new patients
The University of Chicago Medical Center CurrentSince Feb 26, 2021 Accepting new patients
Advocate North Side Health Network Past Accepting new patients
Carle Health Care Incorporated Past Accepting new patients

Locations

595 William R Latham SR Dr
Bourbonnais, IL 60914
Phone (815) 932-8944

135 N Arlington Heights Rd
Buffalo Grove, IL 60089
Phone (847) 215-8866

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

150 Harvester Dr
Ste 300
Burr Ridge, IL 60527
Phone (773) 702-1061

Carol Stream, IL 60122

2875 W 19th St
Chicago, IL 60623
Phone (773) 484-4300

1740 W Taylor St
Chicago, IL 60612
Phone (312) 355-4000

29624 Network Pl
Chicago, IL 60673
Phone (608) 741-7652

75 Remittance Dr
Dept 1611
Chicago, IL 60675

29373 Network Pl
Chicago, IL 60673

75 Remittance Dr
Chicago, IL 60675

701 E Orange St
Hoopeston, IL 60942
Phone (217) 283-5531

350 N Wall St
Kankakee, IL 60901
Phone (815) 935-7500

120 N Oak St
Oak Brook Mall, IL 60521
Phone (630) 856-6700

900 E Scott St
Olney, IL 62450
Phone (618) 345-1000

8201 E Riverside Blvd
Rockford, IL 61114
Phone (815) 971-4066

2300 N Rockton Ave
Rockford, IL 61103
Phone (815) 971-5510

1201 Ricker Rd
Salem, IL 62881
Phone (618) 548-3194

611 W Park St
Urbana, IL 61801
Phone (217) 383-6941

13420 N Meridian St
Ste 200
Carmel, IN 46032
Phone (317) 415-7626

1500 S Lake Park Ave
Ste 109
Hobart, IN 46342
Phone (219) 942-0551

8081 Township Line Rd
Ste 203
Indianapolis, IN 46260
Phone (317) 415-7921

2001 W 86th St
Indianapolis, IN 46260
Phone (317) 338-3617

99 E 86th Ave
Ste C
Merrillville, IN 46410
Phone (219) 769-4061

Interoperability endpoints

  • Direct secure messaging: gloymd292865@carlehiedirect.net

Organizations & group practices 17

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.

View all 17

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": "1155600000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756857600000",
    "number": "1851404073",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "150 HARVESTER DR",
            "address_2": "SUITE 300",
            "city": "BURR RIDGE",
            "state": "IL",
            "postal_code": "605275919"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5841 S MARYLAND AVE",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606371443",
            "telephone_number": "888-824-0200"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "8081 Township Line Rd Ste 203",
            "address_purpose": "LOCATION",
            "city": "Indianapolis",
            "state": "IN",
            "postal_code": "462602189",
            "country_code": "US",
            "telephone_number": "317-415-8100",
            "fax_number": "317-415-7942",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LOY",
        "first_name": "GARY",
        "middle_name": "L",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-08-15",
        "last_updated": "2025-09-03",
        "certification_date": "2025-09-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207VM0101X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology, Maternal & Fetal Medicine",
            "state": "IL",
            "license": "036065416",
            "primary": false
        },
        {
            "code": "207VM0101X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology, Maternal & Fetal Medicine",
            "state": "IN",
            "license": "01090808A",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "gloy208157@uchospital.direct-ci.com",
            "affiliation": "Y",
            "affiliationName": "University of Chicago Physicians Group",
            "address_1": "5841 S Maryland Ave",
            "city": "Chicago",
            "state": "IL",
            "country_code": "US",
            "postal_code": "606371443",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Chicago, IL

Sources for this page

Verify at the official NPI Registry.