Monique Marie Williams, MD - Medicare Internal Medicine in Saint Louis, MO

Monique Marie Williams, MD is a medicare enrolled "Internal Medicine - Geriatric Medicine" physician in Saint Louis, Missouri. Her current practice location is 969 N Mason Rd Ste 145, Saint Louis, Missouri. You can reach out to her office (for appointments etc.) via phone at (314) 996-4545.

Monique Marie Williams is licensed to practice in Missouri (license number 2002045377) 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 1780602417.

Contact Information

Monique Marie Williams, MD
969 N Mason Rd Ste 145,
Saint Louis, MO 63141
(314) 996-4545
(314) 996-3435

Map and Direction




Physician's Profile

Full NameMonique Marie Williams
GenderFemale
SpecialityInternal Medicine - Geriatric Medicine
Location969 N Mason Rd Ste 145, Saint Louis, Missouri
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1780602417
  • Provider Enumeration Date: 07/18/2006
  • Last Update Date: 07/18/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 9638139868
  • Enrollment ID: I20041013000117

Medical Identifiers

Medical identifiers for Monique Marie Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1780602417NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0300XInternal Medicine - Geriatric Medicine 2002045377 (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. Monique Marie Williams allows following entities to bill medicare on her behalf.
Entity NameOak Street Health Physicians Group Of Missouri Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1669041760
PECOS PAC ID: 7315340213
Enrollment ID: O20210729003441

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. Monique Marie 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
Monique Marie Williams, MD
969 N Mason Rd Ste 145,
Saint Louis, MO 63141-6338

Ph: (314) 996-4545
Monique Marie Williams, MD
969 N Mason Rd Ste 145,
Saint Louis, MO 63141

Ph: (314) 996-4545

Reviews and Comments


Internal Medicine Doctors in Saint Louis, MO

Dr. Isik Turker, MD
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Conor Mccartney, M.D.
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Dr. Rehan Rais, MD
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Nathan Farkas, M.D.
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Dr. Randy Olivier Laine, MD
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Practice Location: 1 Barnes Jewish Hospital Plz, Div Im Hospitalist, Saint Louis, MO 63110
Phone: 314-362-1700    Fax: 314-362-9878
Dr. Erin Leigh Dyer, MD
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Medicare: Medicare Enrolled
Practice Location: 4901 Forest Park Ave, Div Im General Med, Ste 241, Saint Louis, MO 63108
Phone: 314-362-5060    Fax: 314-362-6959

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.