Dr Tamer Atassi, MD - Medicare Gastroenterology in Joliet, IL

Dr Tamer Atassi, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Joliet, Illinois. He graduated from medical school in 1993 and has 31 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Gi Partners Of Illinois Llc and his current practice location is 2121 Oneida St, Suite 302, Joliet, Illinois. You can reach out to his office (for appointments etc.) via phone at (630) 685-2877.

Dr Tamer Atassi is licensed to practice in Illinois (license number 036113533) 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 1548276819.

Contact Information

Dr Tamer Atassi, MD
2121 Oneida St, Suite 302,
Joliet, IL 60435-6544
(630) 685-2877
(630) 395-9796

Map and Direction




Physician's Profile

Full NameDr Tamer Atassi
GenderMale
SpecialityGastroenterology
Experience31 Years
Location2121 Oneida St, Joliet, 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:
  • Dr Tamer Atassi graduated from medical school in 1993
  NPI Data:
  • NPI Number: 1548276819
  • Provider Enumeration Date: 07/31/2006
  • Last Update Date: 10/02/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 7911913892
  • Enrollment ID: I20060301000729

Medical Identifiers

Medical identifiers for Dr Tamer Atassi such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1548276819NPI-NPPES
036113533MedicaidIL

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 036113533 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Silver Cross Hospital And Medical CentersNew lenox, ILHospital
Central Dupage HospitalWinfield, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Gi Partners Of Illinois Llc256775829532

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 Tamer Atassi allows following entities to bill medicare on his behalf.
Entity NameDigestive Health Consultants Sc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477723633
PECOS PAC ID: 2163501032
Enrollment ID: O20080502000455
Entity NameGi Partners Of Illinois Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1548613995
PECOS PAC ID: 2567758295
Enrollment ID: O20160907001020

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 Tamer Atassi 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 Tamer Atassi, MD
Po Box 433,
Lemont, IL 60439

Ph: (630) 685-2877
Dr Tamer Atassi, MD
2121 Oneida St, Suite 302,
Joliet, IL 60435-6544

Ph: (630) 685-2877

Reviews and Comments


Internal Medicine Doctors in Joliet, IL

Dr. Gerard Dennis Cerniak, M.D.
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Medicare: Not Enrolled in Medicare
Practice Location: 208 Timberline Ct., Joliet, IL 60431
Phone: 815-744-7507    
Mrs. Beata Agnieszka Kisiel, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 2121 Oneida St, Suite 103, Joliet, IL 60435
Phone: 815-741-8480    Fax: 815-741-8497
Dr. David L Mcfadden, M.D.
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Practice Location: 330 Madison St Ste 303, Joliet, IL 60435
Phone: 815-744-1770    
Divyesh Bhatt, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 330 Madison St Ste 103, Joliet, IL 60435
Phone: 815-514-2975    
Rishikesh Morey, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 812 Campus Dr, Joliet, IL 60435
Phone: 815-741-6830    Fax: 815-741-6832
Ahmed Dakka, MD
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 2100 Glenwood Ave, Joliet, IL 60435
Phone: 630-873-8889    Fax: 630-456-7138
Punit Vajaria, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 2100 Glenwood Ave, Joliet, IL 60435
Phone: 815-725-2121    Fax: 815-741-6303

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.