With more than 80 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 Department of Research has coordinated all research endeavors at the Clinic, having completed over 300 studies (Phase I-IV). The Department is currently staffed with a Director of Research, who is supported by research managers, study coordinators, a recruitment coordinator, and a regulatory specialist.
Research staff 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). Regulatory oversight can be provided by either local (inpatient) or central (outpatient) IRBs. Research facilities include state-of-the-art laboratories and radiological services, an outpatient surgery center, inpatient services at two area hospitals, and electronic medical records.
Springfield Clinic Department of Research and its physician investigators have interest and experience in conducting trials for indications such as asthma, COPD, urticaria, rheumatoid arthritis, osteoarthritis, osteoporosis, fibromyalgia, infectious diseases (complicated skin and skin structure infections, hepatitis C, sepsis syndrome, fungal infections, diabetic foot infections, pneumonia), herpes zoster/shingles, breast cancer, prostate cancer,,head and neck cancer, atrial fibrillation, erectile dysfunction, overactive bladder, neurological disorders, 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.
We have previous experience working with Abbott, Accorda, Alcon, Allergan, Amgen, Apex Bioscience, Aronex, Artisan Pharma, Astellas, Astra-Zeneca, Avanta Orthopedics, Aventis, Basilea, Bausch & Lomb, Bayer, Berlex, Biogen, Boehringer Ingelheim, Bristol-Myers Squibb, Celgene, Celltech, Centocor, Cerexa, Chiron, Covance, Cubist, Daiichi Sankyo, Eli Lilly, EMD Serono, Endo-Pharmaceuticals, Eyetech, Genentech, Genaera, Genomics, Gilead Sciences, GlaxoSmith Kline, Graceway, Hoffman-LaRoche, Hormos, Hybridon, Inc., ICON, Immunex, Inamed, Incyte, Ingenex, Immunex, Johnson & Johnson, Kendle, Labopharm, McGhan Medical Corporation, Medarex, Medex, Medimmune, Medtronic, Mentor, Merck, Novartis, NovoNordisc, Nuvelo, Omnicare, Onyx Pharmaceuticals, OPHTEC, USA, OrthoBiotech, Ortho-McNeil, Paragon, Paratek, Parexel, Peninsula, Pfizer, Pharmacia & Upjohn, PharmaNet, Pharma Services, PPD, QuatRx, Quintiles, Registat, Rhone-Poulec Rorer, Roche, Salix, Schering-Plough, Scios, Searle, Sequus Pharmaceutical Company, SmithKline Beecham, Solvay, Sucampo, TAP Pharmaceuticals, Target Research, Teva NeuroScience, 3-M, Theravance, Tibotec, TRIUS, Versicor, Vertex, Vicuron and Wyeth-Ayerst.
Allergy & Immunology
Renu C. Govindaiah, M.D.
Board Certification: Allergy & Immunology, Internal Medicine
Special Interest: Allergy, Asthma & Immunology
Dareen D. Siri, M.D., FAAAAI
Board Certification: Allergy & Immunology, Internal Medicine
Special Interest: Allergy, Asthma & Immunology
Cardiology
Thomas B. Cahill, M.D.
Board Certification: Cardiovascular Disease and Internal Medicine
Special Interest: Cardiac Stent Technology, Anticoagulation Therapies, Hyperlipidemia,
C-reactive Protein Analysis and Hypertension Therapies.
John Nester, M.D.
Board Certification: Cardiovascular Disease, Internal Medicine
Special Interest: Cardiology
Tasha Schuette, PA-C
Board Certification: Physician Assistant
Special Interest: Cardiology
Donald L. Yakel, Jr., M.D.
Board Certification: Cardiovascular Disease, Interventional Cardiology, Internal Medicine
Special Interest: Diagnostic and Interventional Cardiology, Peripheral Diagnostic and
Interventions. Cardiac Stent Technology, Anticoagulation Therapies, Hyperlipidemia,
C-reactive Protein Analysis and Hypertension Therapies.
Colon & Rectal Surgery
Anthony Firilas, M.D.
Board Certification: Colon and Rectal Surgery, General Surgery
Special Interest: Minimally invasive Colon & Rectal Surgery,
Diagnostic & Therapeutic Colonoscopy, Anorectal Problems,
Fecal Incontinence, Constipation
Dermatology
Sarah M. Dietrich, M.D.
Board Certification: Dermatology
Judith P. Knox, M.D.
Board Certification: Dermatology
Special Interest: Actinic Keratosis, Skin Cancer, Cosmetic Procedures Phototherapy
unit (UVB/UVA) and outpatient surgical suite available. Performs Sclerotherapy,
Laser, Botox Injections, and Dermal Fillers.
Linda Read, FNP-BC
Board Certification: Family Nurse Practitioner
Special Interest: Dermatology
A. Katherine Stealey, M.D.
Board Certification: Dermatology
Endocrinology
David R. Hoelzer, M.D.
Board Certification: Endocrinology, Diabetes and Metabolism, and Internal Medicine
Special Interest: Management of children with diabetes and thyroid disorders
Sufyan Said, M.D., FACE
Board Certification: Endocrinology, Diabetes and Metabolism, and Internal Medicine
Special Interest: Diabetes
Gynecology
Randolph Wm. Roller, M.D.
Gynecology
Special Interest: Contraception, Perimenopause, Menopause, Estrogen Therapy,
Osteoporosis, and Bladder Dysfunction.
J. Michael Zinzilieta, M.D.
Board Certified in Obstetrics and Gynecology
Special Interest: Gynecology
Hematology & Oncology
Mary E. Bretscher, M.D.
Board Certification: Medical Oncology, Hematology, Hospice & Palliative Medicine,
and Internal Medicine,
Special Interest: Hematology & Oncology, Palliative Oncology
Carla Daniels, FNP-BC, AOCNP
Board Certification: Family Nurse Practitioner, Advanced Oncology
Certified Nurse Practitioner
Special Interest: Cancer genetics and screening of high risk individuals;
Early detection teaching and patient education
Andrew Guardia, PA-C
Board Certification: Physician Assistant
Special Interest: Hematology & Oncology
Karen L. Hoelzer, M.D.
Board Certification: Internal Medicine and Medical Oncology
Special Interest: Breast Cancer Care and Management
Scott A. Mink, M.D.
Board Certification: Internal Medicine, Hematology and Medical Oncology
Special Interest: Hematology & Oncology, Lymphoma, Lung Cancer
Tomasz P. Srokowski, M.D.
Board Certification: Internal Medicine, Hematology and Oncology
Special Interest: Hematology & Oncology
Diana Willadsen, M.D.
Board Certification: Medical Oncology, Hematology, Palliative Medicine,
Internal Medicine
Special Interest: Solid Tumors, such as Colon, Breast and Lung cancers; Lymphomas
Hospital Medicine
Rajesh Govindaiah, M.D.
Board Certification: Internal Medicine
Special Interest: Hospital Medicine
Mark E. Weaver, M.D., M.B.A.
Board Certification: Internal Medicine
Special Interest: Hospital Medicine
Infectious Diseases & Foreign Travel Medicine
Donald R. Graham, M.D., FACP
Board Certification: Infectious Diseases and Internal Medicine Special Interest: Infectious Diseases,
Hospital Epidemiology, Foreign Travel Medicine, Home Care
complications, 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.
Douglas R. Leigh, M.D.
Board Certification: Internal Medicine and Infectious Disease
Special Interest: Fungal Infections, HIV and Hepatitic C Therapies,
Infection in the Immunocompromised
Praveen K. Mullangi, M.D.
Board Certified in Internal Medicine
Special Interest: Infectious Diseases
Steven D. O’Marro, M.D.
Board Certification: Internal Medicine and Infectious Disease
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, M.D.
Board Certification: Internal Medicine and Pediatrics
Special Interest: Diabetes treatment options as well as other pediatric
and primary care treatment options.
Nephrology
Sabrina Bessette, M.D.
Board Certification: Nephrology, Internal Medicine
Special Interest: Nephrology& Dialysis
Merry Downer, M.D.
Board Certification: Nephrology, Internal Medicine
Special Interest: Nephrology & Dialysis
Bradford L. West, M.D.
Board Certification: Nephrology, Internal Medicine
Special Interest: Transplant Nephrology
Neurology
Claude J. Fortin, M.D.
Board Certification: Neurology, Clinical Electroencephalography & Neurophysiology
Special Interest: Migraine Headaches, Ischemic Stroke, Epilepsy,
and Pain Management.
Koteswara R. Narla, M.D.
Board Certification: Neurology
Special Interest: Interventional Pain Management
Ophthalmology
John Kwedar, M.D.
Board Certification: Ophthalmology
Special Interest: Glaucoma, Cataract Surgery, Diseases of the Eye,
including Topical Therapeutics.
Randal J. Peterson, M.D., F.A.C.S.
Board Certification: Ophthalmology
Special Interest: State of the Art Cataract Surgery, Glaucoma,
Ocular Implant Technology,
Amish R. Purohit, M.D.
Ophthalmology
Special Interest: Diseases and Surgery of the Retina and Vitreous,
Macular Degeneration, Diabetic Retinopathy
Optometry
Kim Krager, O.D.
Optometry
Special Interest: Full Scope Primary Care Optometry, Contact lenses
including Bifocals and Specialty Contacts for the hard-to-fit patient
and low vision services for the visually impaired
Gaylan Moushon, O.D.
Ophthalmology/Optometry
Vinita Soliman, O.D.
Ophthalmology/Optometry
Orthopaedics & Sports Medicine
Mark Greatting, M.D.
Board Certification: Orthopaedic Surgery, Hand surgery
Special Interest: Orthopaedics of the Shoulder, Elbow, Wrist and Hand
Jeffrey A. Schopp, M.D.
Board Certification: Orthopaedic Surgery
Special Interest: Joint Replacement, VTE Prevention
G. Brett Western, M.D.
Board Certification: Family and Sports Medicine
Special Interest: Sports Medicine and Non-operative Orthopaedics
Brett W. Wolters, M.D.
Orthopaedic Surgery
Special Interest: Knee, Shoulder and Hip Arthroscopy, Sports Medicine
Christopher Wottowa, M.D.
Board Certification: Orthopaedic Surgery, Surgery of the Hand
Special Interest: Orthopaedics of the Hand and Upper Extremity
Plastic Surgery
Beth A. Bergman, M.D.
Board Certification: Plastic Surgery including Cosmetic &
Reconstructive Surgery of the Face, Head & Neck, Trunk & Extremities
Special Interest: Breast Surgery, including Augmentation, Reduction, Lifts,
Asymmetry and Reconstruction, and Cosmetic Surgery, including Facial Rejuvenation,
Body Contouring, Lifts, Liposuction and Tissue Fillers
Richard E. Brown, M.D.
Board Certification: Plastic Surgery, Subspeciality of Surgery of the Hand
Special Interest: Breast Surgery, Cosmetic, Hand and Reconstructive Surgery
Raj K. Sinha, M.D.
Board Certification: Plastic Surgery including Cosmetic & Reconstructive Surgery of the Face,
Head & Neck, Trunk & Extremities
Special Interest: Breast Surgery, Cosmetic, and Hand Surgery
Podiatry
Marten Sikorski, D.P.M.
Board Certification in Podiatric Surgery
Special Interest: Preventative Diabetic Evaluations, Wound Care, Education, and
Surgical Management
Pulmonary Diseases & Sleep Medicine
E. Amy Berry, PA-C
Board Certification: Physician Assistant
Special Interest: Pulmonary Diseases and Sleep Medicine
Samir Patel, M.D.
Board Certification: Pulmonary Disease, Sleep Medicine, Critical Care Medicine,
Internal Medicine
Special Interest: Pulmonary Diseases and Sleep Medicine
Rheumatology
Jason P. Guthrie, M.D.
Board Certification: Internal Medicine
Special Interest: Adult & Pediatric Rheumatology, and Osteoporosis
Jeffrey Horvath, M.D.
Board Certified: Internal Medicine, Rheumatology
Special Interest: Adult Rheumatology and Vasculitis
Michael A. Pick, M. D.
Board Certified: Internal Medicine and Rheumatology
Special Interest: Adult and Pediatric Rheumatology, and Osteoporosis
Mark A. Stern, M.D.
Board Certification: Internal Medicine and Rheumatology
Special Interest: Adult & Pediatric Rheumatology, Osteoporosis
Urology
Thomas E. Baron, M.D.
Board Certification: Urology
Special Interest: Infertility & Vasectomy Reversals, GU Cancer, Stones,
Incontinence, Impotency
Susan Nelson, CUNP
Board Certified: Urology
Special Interest: Urology
David A. Roszhart, M.D.
Board Certification: Urology
Special Interest: Vasectomies, Impotence, GU Cancer, Pediatric Urology,
Stones, Incontinence