Associates in Neurology

Experience and Expertise: A Total Team Approach

Working to solve complicated neurological cases, Drs. Kozelka, DiBiase and Strawsburg work collaboratively to develop effective protocols. Combining experience and expertise of the physicians, neuroradiologists and neuropsychologists enables the team at Associates in Neurology to best interpret test data, diagnose a disorder or disease and recommend course of treatment. As renowned medical specialists in the field of neurology, the healthcare providers at Associates in Neurology the physicians welcome and frequently see patients with complicated neurologic issues for second opinions on a local and regional basis.

When Should I See a Neurologist?

  • Headaches
  • Dizziness
  • Neck and/or Back Pain
  • Head Trauma
  • Memory Problems
  • Unexplained Shaking or Tremor
  • Seizures
  • Blurred Vision
  • Sleep Problems
  • Carpal Tunnel Syndrome
  • Neuropathy



At Associates in Neurology, we are committed to a team approach that involves the physicians, technologists, staff, and patients. Advanced, specialized neurological care combined with state-of-the-art technology and a dedication to continued training in our field enables our team to streamline and provide an accurate diagnosis and a treatment plan to enhance a patient’s quality of life

Associates in Neurology Patient Portal

Take advantage of the online services offered by our practice with the assurance that all of your information is encrypted and stored securely. Visit the Associates in Neurology Patient Portal

Specialties & Practices Areas


Neurology is a branch of medicine dealing with disorders of the nervous system. The nervous system is a complex, sophisticated system that regulates and coordinates body activities. The physicians at Associates in Neurology treat adults with all types of conditions and diseases involving the central and peripheral nervous system, including their coverings, blood vessels and all effector tissue such as muscle. The physicians at Associates in Neurology do not perform surgery, but employ many types of diagnostic tests to determine diagnosis a condition and develop the best course of treatment or management.

Diagnostic Testing

EEG (Electroencephalogram)

An EEG is a recording of the electrical activity of the brain. The electrical activity is recorded as wavy lines on graph paper and examined by a trained physician.

An EEG can be used to evaluate: seizure disorders, stroke, infections of the central nervous system, degenerative disorders (Alzheimer’s, Parkinson’s Disease), head trauma, headaches,brain tumors

AEEG (Ambulatory Electroencephalogram)

An AEEG is a longer recording of an EEG that includes prolonged periods when you are both awake and asleep. This kind of recording is made by using a special recorder that is slightly larger than a portable cassette player. You wear it on your waist with the wires running under your shirt and go about your normal routine for up to 72 hours.

EMG (Electromyogram)

An EMG evaluates the nerve pathway by placing electrodes on the nerve and muscle endings on the hands or feet along the nerve pathway. During this test, the nerve is stimulated with a brief electrical charge, and then a neurologist places a tiny fine wire partially into the muscle to listen and watch if the muscle sounds and looks healthy.

This test evaluates: myopathy, carpal tunnel syndrome, myasthenia gravis, neck and back pain, peripheral neuropathy, radiculopathy, degenerative diseases, spinal diseases

VNG (Video Nystagmogram)

VNG is a sophisticated test of the inner ear and portions of the brain that can reveal certain abnormalities that will help your doctor understand the cause of your dizziness or trouble with balance.

Epley Maneuver (Canalith Repositioning)

Epley Maneuver is a treatment used to eliminate intermittent dizziness/vertigo of the positional type. This treatment repositions naturally occurring crystals in the ear that have become displaced and are causing a spinning sensation. This treatment is ordered after a VNG has been performed and indicates the diagnosis of BPPV (Benign Paroxysmal Vertigo).

Vascular Lab Testing

Associates in Neurology’s Vascular Laboratory in Valparaiso has been granted a three-year term of accreditation in Vascular Testing by the Accreditation Commission (IAC). This three-year term is specifically in the areas of Intercranial Cerebrovascular. IAC - Intersocietal Accreditation Commission IAC Accreditation is a “seal of approval” that patients can rely on the Valparaiso Vascular Lab due to the fact that our facility has been carefully critiqued on all aspects of its operations considered relevant by a panel of medical experts in the field of Vascular Testing.

TCD (Transcranial Doppler)

TCD is an ultrasound used to evaluate blood flow characteristics of major blood vessels within the brain. TCD signals have been extensively correlated with angiograms and are accepted as reliable measurements of intercranial blood flow velocity.

CVR (Vasomotor Reactivity Study)

This study is used to assess the dynamics of blood flow within the brain. As a probe is held over a patient’s head, the patient is asked to hold their breath for 30 seconds. Blood flow measurements will be continuously assessed during these breath holding exercises.

Emboli Detection

This study utilizes non-invasive Doppler technology to assess blood flow within the head, specifically to look for the presence of microscopic blood clots within the blood flow of the brain.

Bubble Study (Emboli Detection with IV Injection)

This study utilizes non-invasive Doppler technology to screen for the presence of a heart defect that may be associated with strokes and TIAs. This study requires that a small IV be placed and a small amount of saline will be injected.

Sleep Lab

Directed and staffed by James Kozelka, MD, PhD, and Richard Strawsburg, MD, both of whom are board certified in Sleep Medicine, the sleep lab in Valparaiso is operated by Associates in Neurology and accredited by the American Academy of Sleep Medicine. The physicians offer preventive, diagnostic and treatment options for a variety of sleep problems such as:

  • Sleep Apnea
  • Restless Leg Syndrome (RLS)
  • Insomnia

Sleep Lab Valparaiso | 2000 Roosevelt Road | 219-531-2670 |


2000 Roosevelt Road, Suite 201
Valparaiso, IN 46383

Phone (219) 476-7777
E-mail Click Here
Hours M-F  8 am to 5 pm
Directions Click Here

900 I Street
LaPorte, IN 46350

Phone (219) 324-1872
E-mail Click Here
Hours Wed & Thurs   9 am to 5 pm
Directions Click Here

Lifeplex Center

2855 Miller Drive, Suite 205
Plymouth, IN 46563

Phone (574) 941-1067
E-mail Click Here
Hours Mon, Tue, Thur, Fri   9 am to  5pm
Directions Click Here

Insurance & Payment Information

We are happy to submit and bill your insurance forms for you as long as you have provided us with the appropriate insurance information. Co-pays and deductibles are due at the time of your service. Please feel free to discuss with the office staff any questions you may have about billing.

New Patient Resources

The physicians, nurse practitioners, nurses and support staff who make up Porter Physician Group all share a common goal – to meet your individual healthcare needs in a timely and caring manner. If you are a new patient or have been a patient in our practice for some time, we thank you for choosing Porter Physician Group.

What Should I Bring to My Appointment?

  • Your insurance card and referral form if required by your insurance provider.
  • A list of current prescription and/or over-the-counter medications you are taking, including your dose and frequency.
  • Pertinent information about your medical and surgery history.
  • Any recent x-rays or test results related to your condition.

Patient Medical Forms

Please download, print and fill out the appropriate forms below prior to your appointment with Porter Physician Group. Filling out these forms will save time on the day of your appointment.