Care Access Research, Santa Clarita

Center Information

Ahmad Namvargolian
Director of Operations
Care Access Research, Santa Clarita
23928 Lyons Ave, Suite 110
Santa Clarita, CA 91321

Currently Enrolling Trials

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Therapeutic Areas

Family Medicine
Internal Medicine

Performance Metrics

Number of Studies Conducted: 15
Number of Active Patients in the Database: 15000

Staff Certifications
Number of Certified CRCs: 4
Number of Certified PIs: 4

ACRP Certifications
Number of ACRP Certified CRCs: 2


Care Access Research, Santa Clarita is a multi-specialty, independent research center specializing in Phase II - IV clinical trials. We are integrated with the private practices of our investigators and are conveniently located in the Los Angeles area. We serve Santa Clarita and its over 175,000 people. Specializing in neurology, endocrinology, and diabetes, our center allows us to continue our mission to make clinical trials an accessible care option for all patients.


Our dedicated research staff has over 50 combined years of research experience. Our neurology experience included Alzheimer's Disease/Dementia, Multiple Sclerosis, Parkinson's Disease, Sleep Disorders, and Epilepsy. Additional areas of interest include but are not limited to Diabetes, Diabetic Neuropathy, Metabolism, Thyroid Diseases, Thyroid Cancer, Cushing's Disease, Migraines, and Tremors.


We offer convenient outpatient facilities with an on-site blood draw and IV infusion capabilities. Our waiting area is comfortable providing a TV, study appropriate reading materials, snacks, and beverages for our patients and visitors.

Our dedicated research space includes multiple exam rooms and a locked, temperature monitored ambient, refrigerated, and frozen IP storage area. The facility maintains a locked and secure study document storage area as well as a comfortable monitoring area with access to a telephone, copier, fax, and high-speed internet connection.

Dedicated research equipment includes a centrifuge, -20°F locked freezer, locked refrigerator, locked drug storage cabinet, ECG machine, EEG equipment, backup power with power outage alarm, blood pressure and vitals unit, and crash cart.

In addition to our Neurologist and Endocrinologist research teams, our site maintains relationships with research experienced dermatologists, ophthalmologists, radiologists, pulmonologists, and PET and MRI facilities.


Surisham Dhillon, MD, Principal Investigator: Dr. Dhillon is a neurologist in private practice and has an appointment at the Henry Mayo Newhall Hospital. She has over 32 years of clinical experience and a growing practice of well over 5,000 patients that are cared for by herself and her capable and caring team.

Sina Tebi, MD, Principal Investigator: Dr. Tebi is an internal medicine physician with specialties in Endocrinology, Diabetes, and Metabolism. He is a certified Densitometrist, with almost 10 years of experience practicing in the LA Area. He is the Director of Endocrinology at Providence Holy Cross Medical Center and the Director of Diabetes program at Henry Mayo Newhall Medical Center.

Kacy Heggan, PsyD, Sub-Investigator: Dr. Heggan is a highly experienced clinical trials rater certified to perform a multitude of cognition scales and assessments. She has over five years of experience in clinical research and had participated in over 50 clinical trials.

Mandy Metzger, PA-C, Sub-Investigator: With over 10 years of experience as a Physician Assistant, Mandy works alongside Dr. Dhillon in both clinical and research-related patient care.


Shari Lim, BS (Psychology), Clinical Research Coordinator: Shari is a highly-experienced research coordinator with over five years of experience in clinical research. Her experience is vast, participating in over 50 clinical trials, and she is certified to perform a high number of cognition scales and assessments. Shari is a certified phlebotomist who is capable of performing on-site lab processing, ECG's, and cognitive rating scale administration.

Marjorie Rivera, BBA, LVN, Clinical Research Coordinator: Marjorie is a senior research coordinator at the site with over 10 years of experience in clinical research, participating in over 60 clinical trials across a multitude of therapeutic areas. In addition to her role as a Clinical Research Coordinator, she has experience being a Psychometric Rater, Clinical Research Associate, and Clinical Research Manager. She is certified in intravenous therapy, IATA, and BLS.

Nina Bliss, BS, CCRP, Clinical Research Coordinator: With over 7 years of experience in clinical research, Nina has participated in over 30 clinical trials. Nina is a certified phlebotomist and is trained in performing cognition scales and assessments as well as lab-processing and ECG’s.

In addition to our experienced research coordinators, we have an IV infusion specialist, multiple medical assistants, and support staff available.




Our PI's are highly respected and well-known physicians in the community. Our site has relationships with local businesses, nursing homes, hospitals, specialists, and primary care physicians; helping us to maintain a large recruitment profile.

We have dedicated support staff for budget and contract negotiations, regulatory submissions to central IRB's, patient recruitment, equipment management, and IT support. We benefit from the additional capabilities provided by the national Care Access Research network of sites.

Contact us today if you are interested in participating in any of our currently enrolling trials of adult ADHD, Parkinson’s Disease, Type 1 Diabetes, Multiple Sclerosis, and Hypogonadism, or to find out more about our upcoming studies.

Contact Center

If you are interested in contacting this center to discuss clinical trials, please complete and send the email form below. A representative from the research center will then follow up with you.