Dr Matthew Warren Williams, MD - Medicare Ophthalmology in Lafayette, LA

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Dr Matthew Warren Williams, MD is a medicare enrolled "Ophthalmology - Retina Specialist" physician in Lafayette, Louisiana. His current practice location is 1101 S College Rd Ste 304, Lafayette, Louisiana. You can reach out to his office (for appointments etc.) via phone at (337) 232-2710.

Dr Matthew Warren Williams is licensed to practice in Louisiana (license number 335525) 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 1689136608.

Contact Information

Dr Matthew Warren Williams, MD
1101 S College Rd Ste 304,
Lafayette, LA 70503-3038
(337) 232-2710
(337) 232-6824

Map and Direction




Physician's Profile

Full NameDr Matthew Warren Williams
GenderMale
SpecialityOphthalmology - Retina Specialist
Location1101 S College Rd Ste 304, Lafayette, Louisiana
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1689136608
  • Provider Enumeration Date: 04/01/2019
  • Last Update Date: 08/22/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 4486981362
  • Enrollment ID: I20230824004332

Medical Identifiers

Medical identifiers for Dr Matthew Warren Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1689136608NPI-NPPES
2495879MedicaidLA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207W00000XOphthalmology 335525 (Louisiana)Secondary
207WX0107XOphthalmology - Retina Specialist 335525 (Louisiana)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 Matthew Warren Williams allows following entities to bill medicare on his behalf.
Entity NameLouisiana State University School Of Medicine In New Orleans Faculty G
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477582526
PECOS PAC ID: 0244136448
Enrollment ID: O20031209000661
Entity NameLsuhn Billing Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1992975775
PECOS PAC ID: 0446337802
Enrollment ID: O20080409000372
Entity NameAcadiana Retina Consultants, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1003920778
PECOS PAC ID: 7911041645
Enrollment ID: O20100219000052
Entity NameOur Lady Of The Angels Hospital Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1912334533
PECOS PAC ID: 7012144322
Enrollment ID: O20140602000869

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 Matthew Warren 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 Matthew Warren Williams, MD
1101 S College Rd Ste 304,
Lafayette, LA 70503-3038

Ph: (337) 232-2710		Dr Matthew Warren Williams, MD
1101 S College Rd Ste 304,
Lafayette, LA 70503-3038

Ph: (337) 232-2710

Reviews and Comments


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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.