John B Alexis, MD - Medicare Emergency Medicine in Berwyn, IL

  1. Home
  2. Emergency Medicine
  3. IL
  4. Berwyn
John B Alexis, MD is a medicare enrolled "Emergency Medicine" physician in Berwyn, Illinois. His current practice location is 3249 Oak Park Ave, Berwyn, Illinois. You can reach out to his office (for appointments etc.) via phone at (708) 783-9100.

John B Alexis is licensed to practice in Illinois (license number 036-096475) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1689608713.

Contact Information

John B Alexis, MD
3249 Oak Park Ave,
Berwyn, IL 60402-3429
(708) 783-9100
Not Available

Map and Direction




Physician's Profile

Full NameJohn B Alexis
GenderMale
SpecialityEmergency Medicine
Location3249 Oak Park Ave, Berwyn, Illinois
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1689608713
  • Provider Enumeration Date: 07/11/2006
  • Last Update Date: 05/23/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 7214923309
  • Enrollment ID: I20040423000276

Medical Identifiers

Medical identifiers for John B Alexis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1689608713NPI-NPPES
036096475MedicaidIL

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 036-096475 (Illinois)Primary

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. John B Alexis 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 Emergency Physicians Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1619074028
PECOS PAC ID: 5597763706
Enrollment ID: O20061127000063

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. John B Alexis 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
John B Alexis, MD
662 Easton Ln,
Elk Grove Village, IL 60007-7833

Ph: (847) 301-0639		John B Alexis, MD
3249 Oak Park Ave,
Berwyn, IL 60402-3429

Ph: (708) 783-9100

Reviews and Comments


Emergency Medicine Doctors in Berwyn, IL

Paul Faine, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3249 Oak Park Ave, Berwyn, IL 60402
Phone: 708-783-9100    
Dr. Carlos Castaneda, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3249 Oak Park Ave, Berwyn, IL 60402
Phone: 708-795-3159    
Camille Enriquez, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3249 Oak Park Ave, Berwyn, IL 60402
Phone: 708-783-9100    
Dr. Jaime Moreno, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3249 S. Oak Park Ave., Berwyn, IL 60402
Phone: 708-783-7070    
Anna Ngoc Nguyen, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3249 Oak Park Ave, Berwyn, IL 60402
Phone: 708-783-6000    
Judith Jean-baptiste, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 3249 Oak Park Ave, Berwyn, IL 60402
Phone: 708-783-9100    
Diana R Williams, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 3249 Oak Park Ave, Berwyn, IL 60402
Phone: 708-783-9100    

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.