SUN RESEARCH INSTITUTE

427 9th St
San Antonio, TX 78215

210-227-1289



Gilbert M. Ruiz, M.D, F.A.S.C
Otolaryngologist (ENT)
Sub- Investigator
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Da-Thuy Van, D.O
Ophthalmologist
Sub- Investigator
Kundandeep S. Nagi, M.D
Ophthalmologist
Sub- Investigator
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Felipe Navas, M.D
Internal Medicine
Sub- Investigator
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Richard C. Garcia , LVN
Sub- Investigator
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Clifton White , LVN
Nurse
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Melissa Mageno, M.A, CRC
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Clinical Research Coordinator
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Heather Welch, M.A, CRC
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Clinical Research Coordinator
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Erin S. Marshall, CRC
Clinical Research Coordinator
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Elsa G. Paulo, CRC
Clinical Research Coordinator
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OUR STAFF
Carl E. Dukes, M.D, F.A.C.P,
Internal Medicine and Nephrologist
Principle Investigator
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Robert G. Bass, M.D.
Internal Medicine
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Thomas W. Grabow, M.D.
Ophthalmologist
Sub-Investigator
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Hector L. Nevarez, M.D
Ophthalmologist
Sub- Investigator
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Izaac A. Zoch, M.D
Anesthesiologist
Sub- Investigator
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John J. Nava, M.D
Internal Medicine
Sub- Investigator
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Beneta Parthiban M.S. , CCRC
Site Director/ Regulatory Manager
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Connie Lerma, AAS
Budgets, Accounting, Contracts
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Daniella Zunigia, M.S.
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Budgets, Accounting, Contracts
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Nina De Los Santos, M.A
Patient Recruiter
Leobardo A. Aleman, M.A
Phlebotomist
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Dr. Leonel Reyes is board certified in Internal Medicine. He graduated from University of Texas Health Science Center at San Antonio and is dedicated to the advancement of the Pharmaceutical and Biotechnical industry through clinical research. Under his guidance we at Sun Research Institute have a proven track record for multi therapeutic areas including device trials, asthma, allergies for adults/children and various other trials at any one time.
Dr Reyes has served as lead investigator for clinical studies relating to all of the following conditions:

Get Paid For Clinical Trial Studies

Free Medical Treatment
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IBS
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RA
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Gout
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Constipation
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Neuropathy
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Heart Burn
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Lupus
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Lyme Disease
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Gastroparesis
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NASH
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Obesity
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Crohns
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Migraine
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Diabetes Type 2
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COVID
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GERD
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Asthma
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Hypertension
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Anemia
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Influenza
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Seasonal Allergies
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Osteoporosis
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Osteo Arthritis
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COPD
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Pain
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UTI
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Cardiovascular Disease​​
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Chronic Kidney Disease