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Stroke Treatment

Providing Brain
Injury &

Specialty Care

At Vanguard, our mission is to treat the physical, cognitive, behavioral and vocational needs of clients with disabilities.

Vanguard Rehabilitation Physicians of Texas proudly serves clients in Greater Houston and the Surrounding Areas.

Brain Injury Treatment

Who do we serve?

Vanguard is a physician operated outpatient brain injury and specialty clinic. We serve patients with Stroke, all severities of Traumatic Brain Injury, Concussions and other Neurological and Musculoskeletal disorders. Our goal is to improve function and overall quality of life for our disabled clients.

Our Services

Physician Care

We provide Physician services to manage complications related to stroke, traumatic brain injury, and other neurological and musculoskeletal disorders. This may include treating the physical, cognitive, behavioral, emotional and vocational needs of our disabled clients.


Spasticity occurs when a muscle becomes too tight. It sometimes happens in your limbs after a stroke, traumatic brain injury, or other disorders. Our team considers the severity of your spasticity and provides treatment that may be most effective for you. This may include injections or other forms of care.


Dizziness or loss of balance is a common complaint in doctors’ offices. We diagnose and treat certain vestibular disorders that may impact your daily life. 

Chronic Migraine

Migraines can be very disabling and impact your ability to function. We take a comprehensive approach to treatment which may include medications, injections, or other methods.

Rehab Care

How can we team up?

Rehab Care Coordination

We take a team approach to helping you function at a higher level. This includes our Physician coordinating care with your Physical, Occupational, and Speech therapists as well as Neuropsychologists.

Life Care Plans

This is a document created by a Physician and Care team. It helps determine the medical and rehabilitation needs of a disabled client throughout their lifetime.

Wheelchair Evaluations

The goal for each client is to help achieve the most mobility and function possible. At Vanguard, we provide wheelchair evaluations to assist with gaining mobility.

Return to work/school

Physician services to coordinate returning to everyday life for you and your family.

Margaret B. Oni, MD

Dr. Margaret B. Oni is a Physical Medicine and Rehabilitation Specialist in Katy, Texas. She completed her Medical School training at Baylor College of Medicine. Dr. Oni then went on to complete Residency at Baylor College of Medicine/UT-Houston PM&R Alliance. This was followed by Fellowship training in Brain Injury Medicine at TIRR Memorial Hermann Hospital.


Dr. Oni is Board Certified in Physical Medicine & Rehabilitation and Board Certified in Brain Injury Medicine. Dr. Oni specializes in managing adult and adolescent patients who have experienced strokes and traumatic brain injury. In addition, she specializes in managing patients with spinal cord injuries, amputations, musculoskeletal disorders, long haul Covid syndrome and other disabilities in her outpatient clinic. She performs botox injections for spasticity, cervical dystonia, chronic migraines, bruxism (teeth grinding), sialorrhea (excessive salivation), and TMJ pain. Click on medical procedures link to learn more. She also has an interest in providing indigent care and is involved in medical missions. 

Looking to celebrate a new you this year! We are now offering Botox cosmetics! Click on cosmetic procedures link to learn more. Call our office to schedule today! 

Would you take the time to follow us on Facebook, Tiktok, and Instagram by clicking the link or scanning the QR codes. We are deeply honored and humbled to provide this much needed service!

Margaret B. Oni, MD
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Contact Us

Questions? Need to schedule an appointment?

Give us a call (713) 259-2968


Vanguard Rehabilitation Physicians of Texas

633 East Fernhurst Drive, Suite 903

Katy, Texas 77450

phone 713-259-2968

fax 877-830-9363


Mon-Fri 8am - 5 pm

We accept Medicare, Medicaid, Private Insurances, Marketplace plans, Workers Comp, Personal Injury, Self pay, and other payors.

Need to access your information?

If you are a new or established patient that has made an appointment, please click on the Patient Portal to access your medical information. 

Brain Injury

What is a brain injury?

A brain injury may be caused by trauma or may be acquired due to a medical illness. A Traumatic Brain Injury is due to some force affecting the brain. This may include a blow to the head, a fall, a motor vehicle accident, or some other type of process. An Acquired Brain Injury may be due to a stroke or other neurological disorder. These type of brain injuries may alter one’s thinking, behavior, emotions, and physical state. These injuries impact not only the patient but also their caregivers. 


"Dr. Oni listens, work with her patients to receive the best health care for each individual family. It is not just one for all program. She helped me to transition my husband to the best rehabilitation center for his heart attack and a stroke after fighting the other health centers that was not giving him the best care he needed. Not all Rehab does right when you love ones are at critical point. I trust her with my husband care and I will and did recommend her to other family members and friends."


"Dr. Oni is one of the most caring and patient doctors I have ever encountered. She treats my nephew who has a traumatic brain injury and suffered a stroke. She goes over and beyond to give him the best care possible. I highly recommend Dr. Oni."

- Pamela

"Dr Oni is my spinal cord injured sons primary Dr. In the 6 years since his injury I have never met a finer more caring doctor than her. Dr Oni has become our go to person for all my sons health care needs. Never have I experienced a more responsive caring doctor. Always returns calls and spends all the time needed to answer questions and follow thru on prescriptions immediately. If you are seeking a doctor in her field look no further. She is far and away the best I have ever met in helping my son with his medical needs. Bar none. Thank you Dr Oni."

- Doug

"Dr. Oni is a very caring person, what I like is that she takes the time to talk to me, she listens to all my worries and answers all my questions and explains everything."

- Esabel

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