Jeffrey J Williams, DO - Medicare Obstetrics & Gynecology in New Lenox, IL

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Jeffrey J Williams, DO is a medicare enrolled "Obstetrics & Gynecology" physician in New Lenox, Illinois. His current practice location is 305 Vine St, New Lenox, Illinois. You can reach out to his office (for appointments etc.) via phone at (815) 463-4746.

Jeffrey J Williams is licensed to practice in Illinois (license number 036117200) 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 1134328644.

Contact Information

Jeffrey J Williams, DO
305 Vine St,
New Lenox, IL 60451-1666
(815) 463-4746
(815) 463-4937

Map and Direction




Physician's Profile

Full NameJeffrey J Williams
GenderMale
SpecialityObstetrics & Gynecology
Location305 Vine St, New Lenox, Illinois
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1134328644
  • Provider Enumeration Date: 07/13/2007
  • Last Update Date: 03/17/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 7719078211
  • Enrollment ID: I20070814000078

Medical Identifiers

Medical identifiers for Jeffrey J Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1134328644NPI-NPPES
036117200OtherILLICENSE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology 036117200 (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. Jeffrey J Williams allows following entities to bill medicare on his behalf.
Entity NameSpecialty Physicians Of Illinois Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124075676
PECOS PAC ID: 4183529456
Enrollment ID: O20031201000602
Entity NameWill County Community Health Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1902811714
PECOS PAC ID: 5395633317
Enrollment ID: O20040310000197

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. Jeffrey J 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
Jeffrey J Williams, DO
9223 W Saint Francis Rd, 2nd Floor,
Frankfort, IL 60423-8330

Ph: (815) 806-3111		Jeffrey J Williams, DO
305 Vine St,
New Lenox, IL 60451-1666

Ph: (815) 463-4746

Reviews and Comments


Obstetrics & Gynecology Doctors in New Lenox, IL

Ramkrishna G Mehendale, M.D.
Obstetrics & Gynecology
Medicare: May Accept Medicare Assignments
Practice Location: 1890 Silver Cross Blvd Ste 215, New Lenox, IL 60451
Phone: 312-997-2229    Fax: 773-797-2884
Dr. Nahla O. Merhi, DR. (M.D.)
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 1890 Silver Cross Blvd., Suite #375, New Lenox, IL 60451
Phone: 815-717-8727    Fax: 815-717-8722
Husam Marsheh, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 1890 Silver Cross Blvd Ste 315, New Lenox, IL 60451
Phone: 815-300-7764    
Alexis Jones, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 1890 Silver Cross Blvd, Suite 210, New Lenox, IL 60451
Phone: 815-463-3000    Fax: 815-463-3013
Dr. Xavier F Pombar, DO
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 1890 Silver Cross Blvd Ste 215, New Lenox, IL 60451
Phone: 312-997-2229    Fax: 773-797-2884
Nicole M Gress, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 1890 Silver Cross Blvd, Suite 210, New Lenox, IL 60451
Phone: 815-463-3000    Fax: 815-463-3013

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.