Dr Deirdra Greathouse-williams, MD - Medicare Family Practice in New Lenox, IL

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Dr Deirdra Greathouse-williams, MD is a medicare enrolled "Family Medicine" physician in New Lenox, Illinois. She graduated from medical school in 2002 and has 22 years of diverse experience with area of expertise as Family Practice. She is a member of the group practice Legacy Healthcare Services Inc and her current practice location is 1890 Silver Cross Blvd, Suite 570, New Lenox, Illinois. You can reach out to her office (for appointments etc.) via phone at (815) 463-3700.

Dr Deirdra Greathouse-williams is licensed to practice in Illinois (license number 036114405) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1871549238.

Contact Information

Dr Deirdra Greathouse-williams, MD
1890 Silver Cross Blvd, Suite 570,
New Lenox, IL 60451-9524
(815) 463-3700
(815) 463-3701

Map and Direction




Physician's Profile

Full NameDr Deirdra Greathouse-williams
GenderFemale
SpecialityFamily Practice
Experience22 Years
Location1890 Silver Cross Blvd, New Lenox, Illinois
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Deirdra Greathouse-williams graduated from medical school in 2002
  NPI Data:
  • NPI Number: 1871549238
  • Provider Enumeration Date: 05/26/2006
  • Last Update Date: 02/28/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 2163440884
  • Enrollment ID: I20051115001029

Medical Identifiers

Medical identifiers for Dr Deirdra Greathouse-williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1871549238NPI-NPPES
036114405MedicaidIL

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 01061341A (Indiana)Secondary
207Q00000XFamily Medicine 036114405 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Silver Cross Home HealthNew lenox, ILHome health agency
Silver Cross Hospital And Medical CentersNew lenox, ILHospital

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 Deirdra Greathouse-williams allows following entities to bill medicare on her behalf.
Entity NameGreathouse Medical Group Sc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851827349
PECOS PAC ID: 8729355193
Enrollment ID: O20170606003141

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 Deirdra Greathouse-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 Deirdra Greathouse-williams, MD
1890 Silver Cross Blvd, Suite 570,
New Lenox, IL 60451-9524

Ph: (815) 463-3700		Dr Deirdra Greathouse-williams, MD
1890 Silver Cross Blvd, Suite 570,
New Lenox, IL 60451-9524

Ph: (815) 463-3700

Reviews and Comments


Family Medicine Doctors in New Lenox, IL

Corinne Nawrocki, D.O.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1890 Silver Cross Blvd, Suite 570, New Lenox, IL 60451
Phone: 815-463-3700    Fax: 815-463-3701
Thomas S Lee, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1890 Silver Cross Blvd, Suite 370, New Lenox, IL 60451
Phone: 815-300-1450    
Jitinder Singh, D.O.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1890 Silver Cross Blvd, Suite 570, New Lenox, IL 60451
Phone: 815-463-3700    Fax: 815-463-3701
Kerry Ann Marcheschi, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1890 Silver Cross Blvd, Suite 570, New Lenox, IL 60451
Phone: 815-463-3700    Fax: 815-463-3700
Joan M Covault, DO
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 305 Vine St, New Lenox, IL 60451
Phone: 815-485-2541    Fax: 815-485-2667
Omar Akhtar, D.O.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1890 Silver Cross Blvd Ste 275, New Lenox, IL 60451
Phone: 815-727-4292    
Yousuf Mohammed, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 410 E Lincoln Hwy Ste 251, New Lenox, IL 60451
Phone: 815-485-2541    Fax: 815-838-2656

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.