Dr Christy Williams, MD - Medicare Emergency Medicine in Lake Forest, IL

Dr Christy Williams, MD is a medicare enrolled "Emergency Medicine" physician in Lake Forest, Illinois. Her current practice location is 1000 N Westmoreland Rd, Lake Forest, Illinois. You can reach out to her office (for appointments etc.) via phone at (847) 535-6150.

Dr Christy Williams is licensed to practice in Illinois (license number 036170097) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1700406352.

Contact Information

Dr Christy Williams, MD
1000 N Westmoreland Rd,
Lake Forest, IL 60045-1658
(847) 535-6150
(847) 535-7801

Map and Direction




Physician's Profile

Full NameDr Christy Williams
GenderFemale
SpecialityEmergency Medicine
Location1000 N Westmoreland Rd, Lake Forest, Illinois
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1700406352
  • Provider Enumeration Date: 04/23/2020
  • Last Update Date: 07/30/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 3072059237
  • Enrollment ID: I20240724000440

Medical Identifiers

Medical identifiers for Dr Christy Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1700406352NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 036170097 (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. Dr Christy Williams allows following entities to bill medicare on her 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 NameMethodist Medical Center Of Illinois
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1265966048
PECOS PAC ID: 1355259714
Enrollment ID: O20170828003194

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 Christy Williams 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 Christy Williams, MD
6730 S South Shore Dr Apt 1105,
Chicago, IL 60649-1366

Ph: (708) 256-3023
Dr Christy Williams, MD
1000 N Westmoreland Rd,
Lake Forest, IL 60045-1658

Ph: (847) 535-6150

Reviews and Comments


Emergency Medicine Doctors in Lake Forest, IL

Christopher C Caudill, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 660 N Westmoreland Rd, Northwestern Lake Forest Hospital Emergency Department, Lake Forest, IL 60045
Phone: 847-535-7917    Fax: 847-535-7801
Paul J Krivickas, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1000 N. Westmoreland Rd, Lake Forest, IL 60045
Phone: 312-695-6868    
Dr. Paul Matthew Been, D.O.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1000 N Westmoreland Rd, Lake Forest, IL 60045
Phone: 847-535-6150    Fax: 847-535-7801
Bonnie Salomon, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 660 N Westmoreland Rd, Lake Forest, IL 60045
Phone: 847-535-7917    Fax: 847-535-5801
Dr. Victoria Catherine Weston, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 660 N Westmoreland Rd, Lake Forest, IL 60045
Phone: 847-535-6150    
Peter M Mc Cool, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1000 N Westmoreland Rd, Lake Forest, IL 60045
Phone: 847-234-5600    
Dr. David Jonathan Kawior, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1000 N Westmoreland Rd, Lake Forest, IL 60045
Phone: 847-234-5600    

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.