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DR. MATTHEW WARREN WILLIAMS MD
NPI 1689136608
Ophthalmology - Retina Specialist in Lafayette, LA

Active since April 01, 2019PECOS EnrolledAccepts Medicare Assignment
1101 S COLLEGE RD STE 304, LAFAYETTE, LA 70503(337) 232-2710(337) 232-6824 Get Directions Write a Review

NPPES record last updated: August 22, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 6, 2023, May 24, 2023, Jul 10, 2019 and 1 more (4 updates tracked since 2019).

About Dr. Matthew Warren Williams Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MATTHEW WARREN WILLIAMS MD (NPI 1689136608) is an individual retina specialist in Lafayette, Louisiana, licensed in Louisiana (335525) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, is affiliated with Ochsner Lafayette General Medical Center, and is a graduate of Louisiana State University School Of Medicine In Shreveport (2019).

NPPES Registry Identity

NPI1689136608
Entity TypeIndividualMale
Primary Taxonomy207WX0107X
Provider Legal NameDR. MATTHEW WARREN WILLIAMSCredential: MD
Location Address1101 S COLLEGE RD STE 304Lafayette, LA 70503-3038
Mailing Address1101 S College Rd Ste 304Lafayette, LA 70503-3038 · (337) 232-2710 · Fax (337) 232-6824
Phone(337) 232-2710
Fax(337) 232-6824
Sole ProprietorNo
Medical School CMSLouisiana State University School Of Medicine In ShreveportGraduated 2019
Enumeration DateApril 1, 2019
Last NPPES UpdateAugust 22, 20254 updates tracked since enumeration
NPPES CertifiedAugust 22, 2025
✔ NPI 1689136608 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOphthalmology · Retina SpecialistAllopathic & Osteopathic Physicians
Taxonomy Code207WX0107X
License✔ Licensed in LA · 335525
Definition
An ophthalmologist who specializes in the diagnosis and treatment of vitreoretinal diseases.
Also ListedOphthalmologyTaxonomy 207W00000X · License 335525 (LA)
1101 S COLLEGE RD STE 304, Lafayette, LA 70503
Open in Google Maps ↗

Other Identifiers 1

Medicaid2495879LA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Matthew Warren Williams Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4486981362
PECOS Enrollment IDI20230824004332
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Matthew Williams reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Acadiana Retina Consultants, LLC
Same address
Retina Specialist
1101 S COLLEGE RD, SUITE 304
Lafayette, LA 70503
  • Reassigned Medicare billing, Louisiana enrollment
  • 3 clinicians in this Medicare group
NPI 1003920778 (337) 232-2710
Lsuhn Billing LLC
1.6 mi
Multi-Specialty
2390 W CONGRESS ST
Lafayette, LA 70506
  • Reassigned Medicare billing, Louisiana enrollment
  • 548 clinicians in this Medicare group
NPI 1992975775 (877) 988-1890
Louisiana State University School Of Medicine In New Orleans Faculty G
118 mi
Multi-Specialty
478 S JOHNSON ST FL 6
New Orleans, LA 70112
  • Reassigned Medicare billing, Louisiana enrollment
  • 931 clinicians in this Medicare group
NPI 1477582526 (504) 412-1819

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ochsner Lafayette General Medical Center

Acute Care Hospitals · Lafayette, LA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number190002
Location1214 Coolidge AvenueLafayette, LA 70503 · Lafayette County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 70503 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$124.60 typical visit price
range $53.43 – $164.73
Typical copayment $31.15 (range $13.35 – $41.18)
Most-billed visit code 99204
Established Patient
$67.06 typical visit price
range $16.64 – $133.62
Typical copayment $16.76 (range $4.16 – $33.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Matthew Williams's NPI number?

The NPI number for Matthew Williams is 1689136608. It was assigned to this individual provider in the NPPES registry on April 1, 2019.

Where is Matthew Williams located?

Matthew Williams practices at 1101 S College Rd Ste 304, Lafayette, LA 70503. The listed phone number is (337) 232-2710.

What is Matthew Williams's specialty?

The primary specialty registered for this NPI is Ophthalmology, specializing in Retina Specialist, with taxonomy code 207WX0107X.

Is Matthew Williams enrolled in Medicare?

Yes. Matthew Williams is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Matthew Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Williams reassigns Medicare benefits to 3 organizations: Acadiana Retina Consultants, LLC (Lafayette, LA), Lsuhn Billing LLC (Lafayette, LA) and Louisiana State University School Of Medicine In New Orleans Faculty G (New Orleans, LA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Matthew Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Matthew Williams accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and AmeriHealth Caritas Next and 2 other insurers list Matthew Williams as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Matthew Williams affiliated with any hospitals?

According to CMS data, Matthew Williams is affiliated with Ochsner Lafayette General Medical Center.

When was this NPI record last updated?

The NPPES record for Matthew Williams was last updated on August 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.