Clinical Trial Resource Center

Clinical Trial Resource Center

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, with 50 locations throughout a 16 county region. The Clinic’s medical staff encompasses over 225 board-certified physicians, practicing in 40 different specialties, and over 110 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 over 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 at the Clinic having completed over 350 studies (Phase I-IV) with more than 100 different sponsors. The Department is currently staffed with a Director of Clinical Research, who is supported by a Clinical Research Manager, Study 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, and Certified Clinical Research Professional (CCRP). 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

Dareen D. Siri, MD
Board Certification: Allergy & Immunology, Internal Medicine
Special Interest: Allergy, Asthma & Immunology


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

Sarah M. Dietrich, MD
Board Certification: Dermatology
Special Interest: Diagnosis of Skin Cancer, Medical and Surgical Treatment of Skin Cancer, Management of Chronic Skin Conditions, Treatment of Sun-Damaged Skin, Evaluation and Surveillance of Moles, Cosmetic Removal of Unwanted Skin Lesions, Laser Treatment of Facial/Non-Facial Skin, Cosmetic Botox


David Hoelzer, MD
Board Certification: Endocrinology & Metabolism, Internal Medicine
Special Interest: Type I and Type II Diabetes


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

Gynecology (Women’s Health)

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

Randolph Wm. Roller, MD
Board Certification: Gynecology
Special Interest: Gynecology

Hematology & Oncology

Amit K. Gupta, MD
Board Certification: Medical Oncology, Hematology, 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: 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, Hospital Epidemiology, Foreign Travel Medicine, Clinical Research, Sepsis Syndrome, Resistant Organisms, Fungal Infections, Catheter-related Infections, Hepatitis C, Community Acquired and Nosocomial Pneumonia, Skin and Skin Structure Infections, Diabetic Foot Infections, Intra-abdominal Infections, C. Difficile Associated Diarrhea, Osteomyelitis and Prevention of Nosocomial Infections.

Steven D. O’Marro, MD
Board Certification: Internal Medicine and Infectious Diseases and Internal Medicine
Special Interest: Infectious Diseases, Travel Medicine, Clinical Research, HIV therapies, Fungal Infections, Sepsis Syndrome, Viral Infections, Community Acquired and Nosocomial Pneumonia, Hepatitis C, Skin and Skin Structure Infections and Intra-abdominal Infections.

Internal Medicine

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

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


Patrick Butler, MD
Board Certification: Ophthalmology
Special Interests: Diabetic Eye, Glaucoma Surgery, No-Stitch Cataract Surgery

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

Amish R. Purohit, MD
Board Certification: Ophthalmology
Special Interest: Central Serous Chorioretinopaathy, Diabetic Retinopathy, Epiretinal Membrane, Floaters, Macular Degeneration, Macular Hole, Retinal Detachment, Retinal Vein Occlusion


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
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, and Osteoporosis

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


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

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.

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