Medical Staff

The Neurology and Pain Specialty Center has two physicians and a staff of advanced practitioners, including physician assistants, nurses, and other health care professionals who work together to give personal, compassionate care.


Our physicians are recognized experts in their fields. We also refer patients to specialists, such as neurosurgeons, for care we do not provide at the Neurology and Pain Specialty Center.

Kenneth P. Martinez, M.D.

Neurologist and Medical Director

“I’m here to give the depth and breadth of care that every person with a neurological disorder deserves.”

Advanced Practitioners

Our advanced practitioners have medical education, training and experience beyond the baccalaureate college degree level. They include physician assistants, registered nurses, an occupational therapist and a psychologist. Our advanced practitioners work under the direct supervision of Dr. Kenneth Martinez.

Certified Physician Assistants

Physician Assistants, (PAs), practice medicine under the direction of physicians and surgeons. They are formally trained to examine patients, diagnose injuries and illnesses, and provide treatment.

Certified Physician Assistants have passed the Physician Assistant National Certifying Examination and are issued certification from the National Commission on Certification of Physician Assistants  and can use the PA-C designation.

Adela Ashraf, P.A.-C, Neuromuscular and Pain Management Specialist

Adela Ashraf, P.A.-C

Certified Physician Assistant, Neuromuscular and Pain Management Specialist

“I always wanted to help people, so I’m fortunate to be a physician assistant and take care of patients who need me.”
Katherine King, P.A.-C, Certified Physician Assistant

Katherine King, P.A.-C

Certified Physician Assistant

“I am a patient advocate. Above all, I want to help my patients understand their diagnosis and treatment.”

Wendy Reulman, P.A.-C

Certified Physician Assistant

“I know that my patients need to be heard, so I spend time listening to their needs and making sure they understand their diagnosis and plan of care.”

Jessica Vollebregt, P.A.-C

Certified Physician Assistant

“I want to connect with patients and their families to help them work through treatment. I want to be there for them.”
Nurse Practitioners

Nurse Practitioners (NPs) are advanced practice nurses who provide high-quality healthcare services. NPs diagnose and treat a wide range of health problems. Besides clinical care, NPs focus on health promotion, disease prevention, health education and counseling.

Rebekah Torres, F.N.P.

Nurse Practitioner

“I am on a journey with my patients. It’s an honor to treat them and to earn their trust.”

Mia Kim, F.N.P.

Nurse Practitioner

“It is an honor to be invited into our patients’ lives and work with them to ensure they have the best quality of life possible.”
Registered Nurses

Registered nurses (RNs) provide and coordinate patient care, educate patients and provide advice and emotional support to patients and their family members.

Vanessa Madrigal, R.N.

Registered Nurse

“My most important role is as a nurse. I always put my patients first. I listen to them, and I get to know them.”

Julie Ramirez, R.N.

Registered Nurse

“Being a nurse allows me to make a difference in the lives of the patients I work with every day.”
Occupational Therapist

Occupational therapists treat patients with injuries, illnesses, or disabilities through the therapeutic use of everyday activities. They help these patients develop, recover, and improve the skills they need for daily living and working.

Sharon Pascua, O.T. R./L.

Occupational Therapist

“I want to help my patients become as independent and functional as possible.”

A part of the healthcare team, psychotherapists collaborate with physicians and others to diagnose and treat psychological disorders and promote overall wellness by observing, interpreting and recording a patient’s behavior.

Allison Smith, M.A., LMFT #90288

Licensed Marriage and Family Therapist
Certified Wellness Life Coach

“Due to my personal medical challenges, I can relate to my patients in a special way.”
Our Neurodiagnostic Team

Under the supervision of Dr. Martinez, our neurodiagnostic technicians perform tests and procedures that determine the presence or absence of a neurological disorder or other medical condition. Our technicians are experienced professionals who are dedicated to your comfort and care.

Tim Harvey, Neurodiagnostic Technician

Tim Harvey

Neurodiagnostic Technician

Michael Husava, Neurodiagnostic Technician

Michael Husava

Neurodiagnostic Technician

Jeff Mayland, Neurodiagnostic Technician

Jeff Mayland

Neurodiagnostic Technician

Treatment Specialists

When appropriate, the staff of the Neurology and Pain Specialty Center refers patients to treatment specialists that will help you manage your disease. These include neurosurgeons, physical therapists, speech therapists, nutritional counselors and others.