Katherine M Williams, MD - Medicare Obstetrics & Gynecology in Skokie, IL

Katherine M Williams, MD is a medicare enrolled "Obstetrics & Gynecology" physician in Skokie, Illinois. Her current practice location is 4905 Old Orchard Ctr Ste 200, Skokie, Illinois. You can reach out to her office (for appointments etc.) via phone at (847) 499-2648.

Katherine M Williams is licensed to practice in Illinois (license number 036.162289) 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 1396242053.

Contact Information

Katherine M Williams, MD
4905 Old Orchard Ctr Ste 200,
Skokie, IL 60077-1462
(847) 499-2648
Not Available

Map and Direction




Physician's Profile

Full NameKatherine M Williams
GenderFemale
SpecialityObstetrics & Gynecology
Location4905 Old Orchard Ctr Ste 200, Skokie, Illinois
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1396242053
  • Provider Enumeration Date: 04/10/2018
  • Last Update Date: 10/25/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 1052668365
  • Enrollment ID: I20221021001594

Medical Identifiers

Medical identifiers for Katherine M Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1396242053NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology 036.162289 (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. Katherine M Williams allows following entities to bill medicare on her behalf.
Entity NameMidwest Center For Women's Health Care, Ltd.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1447200654
PECOS PAC ID: 7012818354
Enrollment ID: O20040119000576

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. Katherine M 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
Katherine M Williams, MD
2801 Lakeside Dr Ste 209,
Bannockburn, IL 60015-1200

Ph: (847) 562-1410
Katherine M Williams, MD
4905 Old Orchard Ctr Ste 200,
Skokie, IL 60077-1462

Ph: (847) 499-2648

Reviews and Comments


Obstetrics & Gynecology Doctors in Skokie, IL

Riley Perry Lloyd, MD
Obstetrics & Gynecology
Medicare: May Accept Medicare Assignments
Practice Location: 4905 Old Orchard Ctr, Ste 330, Skokie, IL 60077
Phone: 847-763-7100    Fax: 847-763-7102
Laura Pearlman, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 4905 Old Orchard Ctr Ste 200, Skokie, IL 60077
Phone: 847-673-3130    Fax: 847-673-3183
Suzanne Ashby, DO
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 9669 Kenton Ave, Suite 550, Skokie, IL 60076
Phone: 847-933-1773    
Sangeeta Senapati, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 9650 Gross Point Rd Ste 3900, Skokie, IL 60076
Phone: 847-926-6544    Fax: 847-926-6545
Frank F. Tu, MD, MPH
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 9650 Gross Point Rd Ste 3900, Skokie, IL 60076
Phone: 847-926-6544    Fax: 847-926-6545
Dr. Marcia Krause, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 4905 Old Orchard Ctr Ste 200, Skokie, IL 60077
Phone: 847-673-3130    Fax: 847-673-3183
Catherine H Dillon, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 9669 Kenton Ave, Suite 550, Skokie, IL 60076
Phone: 847-933-1773    

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.