Dr Scott G Williams, MD - Medicare Obstetrics & Gynecology in O Fallon, MO

Dr Scott G Williams, MD is a medicare enrolled "Obstetrics & Gynecology" physician in O Fallon, Missouri. His current practice location is 1101 Highway K, O Fallon, Missouri. You can reach out to his office (for appointments etc.) via phone at (636) 978-2492.

Dr Scott G Williams is licensed to practice in Missouri (license number 107696) 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 1508828005.

Contact Information

Dr Scott G Williams, MD
1101 Highway K,
O Fallon, MO 63366-8431
(636) 978-2492
(636) 669-2401

Map and Direction




Physician's Profile

Full NameDr Scott G Williams
GenderMale
SpecialityObstetrics & Gynecology
Location1101 Highway K, O Fallon, Missouri
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1508828005
  • Provider Enumeration Date: 04/03/2006
  • Last Update Date: 08/15/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 8123152782
  • Enrollment ID: I20100818000231

Medical Identifiers

Medical identifiers for Dr Scott G Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1508828005NPI-NPPES
208026401MedicaidMO

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology 107696 (Missouri)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 Scott G Williams allows following entities to bill medicare on his behalf.
Entity NameSsm Health Care St Louis
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1275586174
PECOS PAC ID: 7810800737
Enrollment ID: O20031118000393

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 Scott G 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 Scott G Williams, MD
1551 Wall St, Suite310,
Saint Charles, MO 63303-3539

Ph: (636) 669-2268
Dr Scott G Williams, MD
1101 Highway K,
O Fallon, MO 63366-8431

Ph: (636) 978-2492

Reviews and Comments


Obstetrics & Gynecology Doctors in O Fallon, MO

Michael B Chen, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 20 Progress Point Pkwy, Suite 100, O Fallon, MO 63368
Phone: 636-344-3105    Fax: 636-344-3104
Dr. Leah Rose Glass, D.O.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 300 Winding Woods Dr, Suite 200, O Fallon, MO 63366
Phone: 636-240-0130    Fax: 636-240-6822
Jamie L. Puckett, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 1101 Highway K, O Fallon, MO 63366
Phone: 636-379-6363    
Dr. Margaretta Lynn Mendenhall, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 300 Winding Woods Dr, Suite 200, O Fallon, MO 63366
Phone: 636-240-0130    Fax: 636-240-6822
Dr. Danielle Suzanne Grunloh-gumpenberger, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 300 Winding Woods Dr Ste 200, O Fallon, MO 63366
Phone: 636-240-0130    
Dr. Emma Rose Eubanks, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 1101 State Highway K, O Fallon, MO 63366
Phone: 636-379-6363    
Dr. Christine C Cortadillo, D.O.
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 1101 Highway K, O Fallon, MO 63366
Phone: 636-379-6363    Fax: 636-379-1297

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.