COVID 19 ***** update May 2020 *****

We are excited to announce that Collier Neurologic will again see patients in our office as of 05-15-20

We are also able to provide you services via telemedicine (video visit) if you would like to be seen from your home.

As we adjust our schedules and office flow to support recommendations by the CDC, we ask for your patience and understanding as we move through different phases of reopening. 

Here’s what you can expect from CNS during this first phase:

Our providers will be alternating work schedules to provide access to care while allowing for social distancing.

1.  Patients and staff will be required to wear masks (cloth or surgical) while

      in the office.

2. We have rearranged our waiting room and workspace to help with social


3. If you need assistance during your visit, we ask that the person who brings

     you in waits in his/her car until your appointment is over to help us limit

     the number of people in the clinic at any one time.

4. If you have a caregiver who needs to attend the visit with you, he or she

     will also need to wear a mask. Please inform staff if this is the case.

5. Upon arrival, each patient (and caregiver, if there is one) will have their

     temperature taken and may be asked specific COVID-19 screening 


6. We will gather information through as many contactless ways as possible

      and have established handwashing protocols and area sanitizing for


7. We will communicate any changes as we move through this process. 

Please let us know the best way to share information with you.

If you are interested in finding out more about telehealth visits or scheduling a telehealth appointment, please reach out to someone in our office.

If we determine that a video visit is best for you, we will provide instructions on how to prepare and begin a video visit. 

We look forward to seeing you and hope this finds you well. 


The Physicians and Staff of CNS


New Physicians

Dr. Dagmar Nunez, Psy.D.

Neuropsychological testing 

in English and Spanish

Call 239-262-5368 for appointment

 Dr. Brett W. Mercer


will be joining our group July 2020

Call 239-262-8971 for appointment



Dr. John D. Campbell 

Dr. William A. Justiz

Dr. Matthew Baker

Dr. Maria E. Santiago

Dr. Brett W. Mercer

239-262-8971 ph

239-262-2537 fx

Neurosurgery & Pain Management

Dr. Gary P. Colon - Neurosurgery

Dr. David W. Krueger - Physiatry

239-262-1721 ph

239-262-1045 fx


Dr. Steven Smith Psy.D.

Dr. David Cox PhD

Dr. Dagmar Nunez Psy.D.

239-262-5368 ph

239-262-0163 fx


3200 Bailey Lane, Ste 200 Naples, Florida 34105

239-262-8971 - Neurology 239-262-1721 - Surgery / Pain Management 239-262-5368 - Psychology 239-434-0332 - Clinical Research

Open today

08:00 am – 05:00 pm

Bonita office

3501 Health Center Boulevard, Bonita Springs, Florida 34135, United States