Gary L Loy, - Medicare Obstetrics/gynecology in Chicago, IL

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Gary L Loy, is a medicare enrolled "Obstetrics & Gynecology - Maternal & Fetal Medicine" physician in Chicago, Illinois. He went to University Of Chicago, Pritzker School Of Medicine and graduated in 1981 and has 43 years of diverse experience with area of expertise as Obstetrics/gynecology. He is a member of the group practice The University Of Chicago Medical Center and his current practice location is 5841 S Maryland Ave, Chicago, Illinois. You can reach out to his office (for appointments etc.) via phone at (888) 824-0200.

Gary L Loy is licensed to practice in Illinois (license number 036065416) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1851404073.

Contact Information

Gary L Loy,
5841 S Maryland Ave,
Chicago, IL 60637-1443
(888) 824-0200
Not Available

Map and Direction




Physician's Profile

Full NameGary L Loy
GenderMale
SpecialityObstetrics/gynecology
Experience43 Years
Location5841 S Maryland Ave, Chicago, Illinois
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Gary L Loy attended and graduated from University Of Chicago, Pritzker School Of Medicine in 1981
  NPI Data:
  • NPI Number: 1851404073
  • Provider Enumeration Date: 08/15/2006
  • Last Update Date: 10/24/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 1355470196
  • Enrollment ID: I20100603000578

Medical Identifiers

Medical identifiers for Gary L Loy such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1851404073NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207VM0101XObstetrics & Gynecology - Maternal & Fetal Medicine 036065416 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
The University Of Chicago Medical CenterChicago, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
The University Of Chicago Medical Center7618880766779

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Gary L Loy allows following entities to bill medicare on his behalf.
Entity NameUniversity Of Chicago
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1821048786
PECOS PAC ID: 7719899426
Enrollment ID: O20031103000094
Entity NameAdvocate Health And Hospitals Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700824455
PECOS PAC ID: 7810800935
Enrollment ID: O20031106000064
Entity NameThe University Of Chicago Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033218128
PECOS PAC ID: 7618880766
Enrollment ID: O20031106000203
Entity NameHoopeston Community Memorial Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1366480873
PECOS PAC ID: 3577456037
Enrollment ID: O20040210000011
Entity NameRush University Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1407817257
PECOS PAC ID: 4789679366
Enrollment ID: O20040415000186
Entity NameRichland Memorial Hospital Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1467492124
PECOS PAC ID: 3870565732
Enrollment ID: O20040811000131
Entity NameCarle Health Care Incorporated
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154653947
PECOS PAC ID: 3577515774
Enrollment ID: O20100513000829

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Gary L Loy is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Gary L Loy,
150 Harvester Dr, Suite 300,
Burr Ridge, IL 60527-5919

Ph: () -		Gary L Loy,
5841 S Maryland Ave,
Chicago, IL 60637-1443

Ph: (888) 824-0200

Reviews and Comments


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Rebekah Osgood, M.D.
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Dr. Sarah Hoque, M.D.
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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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