Dr Osama G Ayad, MD, FACP - Medicare Internal Medicine in Merrillville, IN

Dr Osama G Ayad, MD, FACP is a medicare enrolled "Internal Medicine" physician in Merrillville, Indiana. He graduated from medical school in 1987 and has 37 years of diverse experience with area of expertise as Internal Medicine. His current practice location is 370 E 84th Dr Ste 200, Merrillville, Indiana. You can reach out to his office (for appointments etc.) via phone at (121) 983-6109.

Dr Osama G Ayad is licensed to practice in Indiana (license number 01066512A) 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 1427162288.

Contact Information

Dr Osama G Ayad, MD, FACP
370 E 84th Dr Ste 200,
Merrillville, IN 46410-6643
(121) 983-6109
(219) 836-1786

Map and Direction




Physician's Profile

Full NameDr Osama G Ayad
GenderMale
SpecialityInternal Medicine
Experience37 Years
Location370 E 84th Dr Ste 200, Merrillville, Indiana
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:
  • Dr Osama G Ayad graduated from medical school in 1987
  NPI Data:
  • NPI Number: 1427162288
  • Provider Enumeration Date: 08/18/2006
  • Last Update Date: 01/11/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 3476520271
  • Enrollment ID: I20101101000812

Medical Identifiers

Medical identifiers for Dr Osama G Ayad such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1427162288NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0000XInternal Medicine - Hematology 01066512A (Indiana)Secondary
207R00000XInternal Medicine 01066512A (Indiana)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
St Mary Medical Center IncHobart, INHospital
Franciscan Health Crown PointCrown point, INHospital
Community HospitalMunster, INHospital
St Catherine Hospital IncEast chicago, INHospital

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. Dr Osama G Ayad allows following entities to bill medicare on his behalf.
Entity NameHorizon Medical, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1750694204
PECOS PAC ID: 0648464966
Enrollment ID: O20101101000757

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. Dr Osama G Ayad 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
Dr Osama G Ayad, MD, FACP
370 E 84th Dr Ste 200,
Merrillville, IN 46410-6643

Ph: (219) 836-1096
Dr Osama G Ayad, MD, FACP
370 E 84th Dr Ste 200,
Merrillville, IN 46410-6643

Ph: (121) 983-6109

Reviews and Comments


Internal Medicine Doctors in Merrillville, IN

Dr. Mihas Mamu Kodenchery, MD
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Dr. Mohammed Asgar, MD
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Gaurav Agarwal, MD
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Phone: 219-884-2640    Fax: 219-884-2810
Larry R Brazley, MD
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Phone: 219-791-0248    Fax: 219-791-0251
Stephanie D Marshall, DO
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Medicare: Accepting Medicare Assignments
Practice Location: 8684 Connecticut St Ste A, Merrillville, IN 46410
Phone: 192-472-8990    Fax: 219-472-0270

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).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.