Dr. William A. Brennan
- Gender: Male
- Experience: 33 years
- Graduated from: University Of South Carolina School Of Medicine
- Graduation year: 1988
- Sole propriator: Yes
- NPI: 1578784468
Dr. William A. Brennan M.D.
Neurosurgeon
He is located at 4212 West Congress Street Suite 3500 in Lafayette, LA 70506. Can help patients with the following: Achalasia, Cerebral Aneurysm, Gallstones, Herniated Disc, Peptic Ulcer, Spinal Stenosis. His National Provider Identifier (NPI) number is 1578784468. Appointment can be made via the phone number (337) 981-2125. He is affiliated with 1 practices and 2 hospitals.
Conditions treated
Dr. William A. Brennan, being an neurosurgeon, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. William A. Brennan.
- Achalasia
- Acoustic Neuroma
- Anal Fissure
- Appendicitis
- Boils
- Brain Aneurysm
- Brain Cancer
- Brain Damage
- Brain Hemorrhage
- Brain Lesions
- Cancer
- Cauda Equina Syndrome
- Cerebral Aneurysm
- Cervical Radiculopathy
- Colon Cancer
- Concussion
- Crohn's Disease
- Cyst
- Diverticulosis
- Enlarged Spleen
- Esophageal Cancer
- Gallstones
- Gangrene
- Heart Disease
- Hemorrhoids
- Hernia
- Herniated Disc
- Hydrocephalus
- Inflammatory Bowel Disease (IBD)
- Lymphedema
- Neck Pain
- Pancreatitis
- Paralysis
- Peptic Ulcer
- Peripheral Nerve Tumors
- Pilonidal Cyst
- Pinched Nerve
- Pseudotumor Cerebri
- Quadriplegia
- Sebaceous Cyst
- Spinal Cord Injury
- Spinal Stenosis
- Spondylosis
- Traumatic Brain Injury
- Ulcerative Colitis
Procedures Performed by Dr. William A. Brennan
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. William A. Brennan as in-network for the following 2026 plans.
Health plans
HMO Louisiana
Network data as of Sep 8, 2026, as reported by the insurer.
Show all 7 plans from HMO Louisiana
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Blue POS 60/40 $6500 with 2 $0 PCP Virtual Visits HSA Eligible | POS · Bronze | Not Applicable | Accepting new patients |
| Blue POS 80/60 $3200 with 2 $0 PCP Virtual Visits | POS · Silver | Not Applicable | Accepting new patients |
| Blue POS 90/70 $9900 with 2 $0 PCP Virtual Visits HSA Eligible | POS · Bronze | Not Applicable | Accepting new patients |
| Blue POS Copay (PCP) 50/50 $7500 Standardized HSA Eligible | POS · Expanded Bronze | Not Applicable | Accepting new patients |
| Blue POS Copay (PCP) 60/40 $6000 Standardized | POS · Silver | Not Applicable | Accepting new patients |
| Blue POS Copay (PCP) 75/55 $2000 Standardized | POS · Gold | Not Applicable | Accepting new patients |
| Blue POS Copay (PCP) 80/60 $1000 with 2 $0 PCP Virtual Visits | POS · Gold | Not Applicable | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. William A. Brennan is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Payments received
Drug payment
| Medtronic | $3022 |
| LDR Medical | $1852 |
| Globus Medical | $248 |
Other
| Travel and Lodging | $3784 |
| Food and Beverage | $1711 |
Studies
UNIVERSITY OF SOUTH CAROLINA SCHOOL OF MEDICINE
Graduated in 1988Additional Specialities
- Surgeon
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Questions & Answers
Has Dr. William A. Brennan affiliation with hospitals?
Dr. William A. Brennan is affiliated with OUR LADY OF LOURDES REGIONAL MEDICAL CENTER, INC. For the full list of hospitals see this list.
What conditions does Dr. William A. Brennan treat?
Dr. William A. Brennan provides treatment for Achalasia, Cerebral Aneurysm, Gallstones, Herniated Disc, Peptic Ulcer, Spinal Stenosis. For the full list see this list.
Does Dr. William A. Brennan have affiliation with practices?
Dr. William A. Brennan is affiliated with Neurosurgical Solutions of Lafayette.
Where can you meet with Dr. William A. Brennan?
Dr. William A. Brennan's office is located at 4212 West Congress Street Suite 3500 in Lafayette, LA 70506.
Does Dr. William A. Brennan accept patients with HMO Louisiana?
Yes, Dr. William A. Brennan is listed in-network for HMO Louisiana through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.