Research Center Profile:
Springfield Clinic, LLP

Center Information

Paulette Sullivan, RN, BSN, CCRC
Director of Clinical Research
Springfield Clinic, LLP
1130 S. 6th Street Suite 100 (Research Admin Office)
Springfield, IL 62703
Phone: 217-528-7541 ext. 17404
217-527-4747 (fax)
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Contact Center

Therapeutic Areas

Cardiology/Vascular Diseases
Infections and Infectious Diseases
Internal Medicine
Obstetrics/Gynecology (Women’s Health)
Orthopedics/Orthopedic Surgery
Otolaryngology (Ear, Nose, Throat)
Plastic Surgery
Pulmonary/Respiratory Diseases

Center Overview

Springfield Clinic is one of the largest multi-specialty physician groups located in Central Illinois serving a population of nearly one million patients. With 40+ locations throughout a 16 county region the Clinic’s medical staff encompasses over 260 board-certified physicians, practicing in 80 different specialties and sub-specialties, and over 125 mid-level providers, with a broad range of training and expertise.

Clinical Research Experience

With more than 100 years of combined experience in clinical trials and a patient population of nearly 1 million, our investigators and staff are dedicated to conducting "Cutting Edge Research for Tomorrow’s Medicine." Since being centralized in 2003, the Clinical Research Department has coordinated all research endeavors with the Clinic having completed over 350 studies (Phase I-IV) to date. The Department is currently staffed with a Director of Clinical Research, who is supported by a Clinical Research Manager, Clinical Research Coordinators, a Clinical Recruitment Coordinator, and a Regulatory Specialist.

Research staff members are trained on ICH/GCP guidelines, HIPAA, and the Code of Federal Regulations (CFR). Certifications include: Collaborative IRB Training Initiative (CITI), International Air Transport Association (IATA) training, Certified Clinical Research Professional (CCRP) and Certified Clinical Research Coordinator (CCRC). The Clinical Research Department and its physician investigators have interest and experience in conducting trials for indications such as asthma, COPD, urticaria, rheumatoid arthritis, osteoarthritis, gout, osteoporosis, fibromyalgia, irritable bowel syndrome, infectious diseases (complicated skin and skin structure infections, hepatitis C, sepsis syndrome, fungal infections, diabetic foot infections, pneumonia, Clostridium Difficile), herpes zoster/shingles, breast cancer, prostate cancer, lung cancer, head and neck cancer, atrial fibrillation, erectile dysfunction, overactive bladder, , diabetes mellitus, psoriasis, actinic keratoses, women’s health issues, macular degeneration, cataracts, glaucoma, joint implants, breast implants, and occupational health issues. New investigative areas are continually being considered and added.

Facility Description

Our state-of-the-art center is experienced with conducting both inpatient and outpatient trials. Springfield Clinic is accredited by Accreditation Association for Ambulatory Health Care (AAAHC), having received the highest marks and accreditation term allowed by that organization.

The facility is supported by a CAP and CLIA certified laboratory, a full digital radiology department, and an outpatient surgery center. All Springfield Clinic facilities utilize electronic medical records that are 21 CFR Part 11 compliant. The Clinical Research Department has a 3500 square foot administrative office with a dedicated Monitoring Room complete with internet access as well as office amenities. There is a secured Regulatory Room and a fully functional Laboratory for specimen processing. Investigational Product is stored in a substantially constructed room with limited access and temperature controlled/monitored environment.

Investigator Experience

Allergy & Immunology

Renu C. Govindaiah, MD
Board Certification: Allergy & Immunology, Internal Medicine
Special Interest: Allergy, Asthma & Immunology, Cough, Contact Dermatitis, Eczema, Food & Drug Allergies, Hives, Immunodeficiency, Insect Sting Allergy, Sinusitis

Ellen Pratt, MD
Board Certification: Allergy & Immunology, Pediatrics
Special Interest: Allergy, Asthma & Immunology, Hives, Food & Drug Allergies, Eczema, Contact Dermatitis, Immunodeficiency, Sinusitis


Christian A. Zellner, MD
Board Certification: Cardiovascular Disease, Interventional Cardiology, Nuclear Cardiology, Internal Medicine
Special Interest: Cardiology, Interventional Cardiology, Nuclear Cardiology

Colon & Rectal Surgery

Peter M.C. Hofmann, MD
Board Certification: Colon and Rectal Surgery, General Surgery
Special Interest: : Minimally Invasive Colon & Rectal Surgery, Colonoscopy, Transanal Endoscopic Microsurgery (TEM)

James W. Thiele, MD
Board Certification: Colon and Rectal Surgery, General Surgery
Special Interest: : Robotic & Laparoscopic Colon & Rectal Surgery, Screening Colonoscopy, Surgical Treatment of IBD, Anorectal Disease Process


Casandra Claman, MD
Board Certification: Dermatology, Internal Medicine
Special Interest: Aging Skin, Skin Cancer Detection, Dermatitis, Contact Dermatitis, Moles, Psoriasis, Botox, Fillers, Lasers, Sclerotherapy, Peels, Skin Growths, Surgical and Medical Treatment of Skin Cancer

Vivianne Beyer, MD
Board Certification: Dermatology
Special Interest: Dermatology


Rebecca Green, MD
Board Certification: Pediatric Endocrinology, Pediatrics
Special Interest: Pediatric Endocrinology

Sufyan Said, MD
Board Certification: Endocrinology, Diabetes & Metabolism
Special Interest: Diabetes, Osteoporosis, Thyroid Disorders


Robert Mosley, MD
Board Certification: Gastroenterology
Special Interest: Gastroenterology

Gynecology (Women’s Health)

Michael Bradley, MD
Board Certification: Obstetrics & Gynecology
Special Interest: Obstetrics & Gynecology

Richard Eden, MD
Board Certification: Obstetrics and Gynecology
Special Interest: Dysmenorrhea, High Risk Pregnancy Care, Infertility, Menopause, Menorrhagia, Ovarian Cysts, Pap, Pregnancy, Urinary Incontinence, Gynecologic & Robotic Surgeries

Hematology & Oncology

Amit K. Gupta, MD
Board Certification: Medical Oncology, Hematology and Internal Medicine
Special Interest: Breast Cancer, Cancer Prevention, Colon Cancer, GI Cancer, Lung Cancer, Lymphomas, Research

Karen L. Hoelzer, MD
Board Certification: Medical Oncology and Internal Medicine
Special Interest: Breast Cancer Care and Management

Tomasz P. Srokowski, MD
Board Certification: Medical Oncology, Hematology and Internal Medicine
Special Interest: Hematology & Oncology

Hospital Medicine

Mark E. Weaver, MD
Board Certification: Internal Medicine and Nephrology
Special Interest: Hospital Medicine

Infectious Diseases & Foreign Travel Medicine

Donald R. Graham, MD
Board Certification:Infectious Diseases and Internal Medicine
Special Interest: Infectious Diseases, Foreign Travel Medicine, and Clinical Research

Steven D. O’Marro, MD
Board Certification: Internal Medicine and Infectious Diseases and Internal Medicine
Special Interest: Infectious Diseases, Foreign Travel Medicine, and Clinical Research

Internal Medicine

Kenneth R. Sagins, MD
Board Certification: Internal Medicine and Pediatrics
Special Interest: Asthma, Childhood Development, Diabetes, Nutrition/Exercise and Wellness

Bradford West, MD
Board Certification: Nephrology and Internal Medicine
Special Interest: Kidney Stones, Post-Transplant Bone Disease and Kidney Transplantation

Randy Western, MD
Board Certification: Family Medicine
Special Interest: Family Medicine


John Kwedar, MD
Board Certification: Ophthalmology
Special Interest: Glaucoma and Glaucoma Surgery, No-Stitch Cataract Surgery.


Robin B. Valenti, OD
Special Interest: Cataracts, Specialty Contact Lens, Glasses, Nutrition, Dry Eye, Ocular Allergy, Diabetes

Orthopedics and Sports Medicine

G. Brett Western, MD
Board Certification: Sports Medicine and Family Medicine
Special Interest: Sports Medicine, Non-operative Orthopedics, Back Injections, Ultrasound, Platelet Rich Plasma Injections


Philip Garcia, MD
Board Certification: Otolaryngology/Head & Neck Surgery
Special Interests: Otolaryngology (Ear, Nose, & Throat)

Plastic Surgery

Beth A. Bergman, MD
Board Certification: Surgery, Plastic and Reconstructive
Special Interest: Breast Surgery (including Augmentation, Reduction, Lifts, Asymmetry and Reconstruction) and Cosmetic Surgery (including Facial Rejuvenation, Body Contouring, Lifts, Liposuction and Tissue Fillers)


Marten Sikorski, DPM
Board Certification: Podiatric Surgery with Certification in Foot Surgery
Special Interest: Diabetes, Foot Surgery, Wound Care

Pulmonary Diseases & Sleep Medicine

Samir Patel, MD
Board Certification: Pulmonary Disease, Sleep Medicine, Critical Care Medicine, Internal Medicine
Special Interest: Asthma, Chronic Cough, COPD, Sleep Apnea, CPAP, Nacrolepsy, Pulmonary Fibrosis


Michael A. Pick, MD
Board Certified: Rheumatology, Internal Medicine
Special Interest: Adult and Pediatric Rheumatology

Mark A. Stern, MD
Board Certification: Rheumatology, Internal Medicine
Special Interest: Rheumatoid and Psoriatic Arthritis, Osteoporosis, Gout, Osteoarthritis, Lupus, Fibromyalgia and Vasculitis

Robert G. Trapp, MD
Board Certification: Rheumatology, Internal Medicine
Special Interest: Rheumatoid and Psoriatic Arthritis, Osteoporosis, Gout, Osteoarthritis, Lupus, Fibromyalgia and Ankylosing Spondylitis


David C. Lieber, MD
Board Certification: Urology
Special Interest: Urology, Laparoscopic Robotic Surgery, Urologic Oncology, and Reconstruction

Patient Demographics

Located in between St. Louis and Chicago, Springfield, IL is home to a diverse population that embraces new treatment options. Since 1939, Springfield Clinic has been providing quality healthcare to people of Central Illinois and is a known leader in the medical community.

Other Information

Out-patient protocols can utilize the services of a central Institutional Review Board (IRB).

In-patient protocols must utilize the services of a local IRB. The following hospitals are located within two miles of Springfield Clinic:

  • St. John’s Hospital, which has been recognized by U.S. News and World Report as one of the 50 best Cancer Hospitals in the nation.
  • Memorial Medical Center, which has achieved Magnet Recognition Status for Nursing Excellence.

Contact Center

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