Thomas Brandon Nealis, MD - Medicare Gastroenterology in Chicago, IL

Thomas Brandon Nealis, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Chicago, Illinois. He went to Georgetown University School Of Medicine and graduated in 2006 and has 18 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Northwestern Medical Faculty Foundation and his current practice location is 675 N Saint Clair St, Suite 17-250, Chicago, Illinois. You can reach out to his office (for appointments etc.) via phone at (312) 695-5620.

Thomas Brandon Nealis is licensed to practice in Illinois (license number 036.122910) 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 1841456423.

Contact Information

Thomas Brandon Nealis, MD
675 N Saint Clair St, Suite 17-250,
Chicago, IL 60611-5975
(312) 695-5620
(312) 695-7095

Map and Direction




Physician's Profile

Full NameThomas Brandon Nealis
GenderMale
SpecialityGastroenterology
Experience18 Years
Location675 N Saint Clair St, 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:
  • Thomas Brandon Nealis attended and graduated from Georgetown University School Of Medicine in 2006
  NPI Data:
  • NPI Number: 1841456423
  • Provider Enumeration Date: 08/01/2008
  • Last Update Date: 07/11/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 1557517117
  • Enrollment ID: I20120814000395

Medical Identifiers

Medical identifiers for Thomas Brandon Nealis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1841456423NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 036.122910 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Northwestern Memorial HospitalChicago, ILHospital
Central Dupage HospitalWinfield, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Northwestern Medical Faculty Foundation45875768143352

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. Thomas Brandon Nealis allows following entities to bill medicare on his behalf.
Entity NameNorthwestern Medical Faculty Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1346235314
PECOS PAC ID: 4587576814
Enrollment ID: O20031105000541
Entity NameCentral Dupage Physician Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033149844
PECOS PAC ID: 5890696231
Enrollment ID: O20040303000601

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. Thomas Brandon Nealis 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
Thomas Brandon Nealis, MD
675 N Saint Clair St, Suite 17-250,
Chicago, IL 60611-5975

Ph: (312) 695-5620
Thomas Brandon Nealis, MD
675 N Saint Clair St, Suite 17-250,
Chicago, IL 60611-5975

Ph: (312) 695-5620

Reviews and Comments


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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).

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.