Our dedicated primary care team cares for thousands of local residents during friendly and informative visits. We accept new patients from all major insurances.


Tracy E. Fabian, DO, completed her residency at the University of Buffalo Osteopathy Family Medicine Association with Sisters of Charity Hospital. She received her Doctorate of Osteopathic Medicine from Edward Via College of Osteopathic Medicine.

Dr. Fabian most recently practiced at the Arcade and Perry locations of Wyoming County Family Medicine, providing services through newborn, pediatric, adult, geriatric and gynecological treatment and care. A NY State Medical Licensed Physician, Dr. Fabian is Board Certified through the American Osteopathic Board of Family Physicians.

In December 2013, Bertrand Chaffee Hospital welcomed Dr. Edwin Heidelberger to its active medical staff. Dr. Heidelberger, known by his patients as “The Country Doctor,” has been a resident of the Springville community for almost 20 years and is very excited about being back in the area to see former and new patients at the Bertrand Chaffee Hospital Primary Care Center.

Dr. Heidelberger obtained his medical degree from the State University of New York at Buffalo School of Medicine and Biomedical Sciences concurrent with a PhD in physiology. After completing a combined residency in internal medicine and pediatrics at the State University of New York at Buffalo, he became board certified in pediatrics and internal medicine.

Dr. Edwin Heidelberger serves as Vice President of Medical Affairs (VPMA) of Bertrand Chaffee Hospital. As VPMA, Dr. Heidelberger acts as a liaison between the medical staff, administration and the hospital’s board of directors. One of his primary responsibilities is coordinating clinical activities and resources of the hospital in ways that will enhance efficiency in delivering quality healthcare while emphasizing patient safety.

Dr. William Wnuk earned his bachelor’s degree in biology from Canisius College and his doctorate in medicine at the State University of New York at Buffalo’s School of Medicine and Biomedical Sciences. He completed his residency in internal medicine-pediatrics at SUNY Buffalo, and is certified in cardiac stress testing, pediatric advanced life support and advanced cardiac life support.

Dr. Wnuk was appointed BCH Primary Care Center Medical Director in August 2016, focusing on quality assurance and collaboration with hospital services.

Lauralee Sprague, NP grew up in Sardinia and Machias, and currently resides in the area. She graduated from SUNY Brockport with a bachelor of science in nursing, and from D’Youville College with a master’s and certification as a family nurse practitioner (FNP).

Sprague has been in the healthcare field for more than 20 years, six of them as a registered nurse, and 15 of them as a family nurse practitioner. She is board certified in family practice, certified in ACLS, PALS, and BLS, and has experience in emergency medicine and family medicine.

Kenneth Dabolt, PA earned his physician assistant degree from Daemen College. His clinical rotations included ob/gyn, emergency medicine, dermatology, plastic surgery, general surgery and pediatrics. He is a member of the Western New York Physician Assistant Association and the American Academy of Physician Assistants.

Melissa Fanton, PA specializes in family medicine, and has a master’s in physician assistant studies from Daemen College. She has been practicing as a physician assistant since 2006. She belongs to the New York State Society of Physician Assistants and the American Academy of Physician Assistants, and is certified through the National Commission on Certification of Physician Assistants.

Daniel Karstedt, PA specializes in family medicine and earned his master’s degree from Mercyhurst University in Erie, Penn. Prior to attending school for his physician assistant training, he spent four years at Mercyhurst where he earned a bachelor’s of science in biology. Karstedt is originally from Eden and is a graduate of Eden Jr./Sr. High School. Throughout his clinical year, he gained experience in primary care and has a particular interest in dermatology and sports medicine. He is a member of the American Academy of Physician Assistants.

Ken Osborn, PA specializes in internal medicine, and earned his degree at Albany Medical College. He has been practicing as a physician assistant since 1987. He belongs to the New York State Society of Physician Assistants and the American Academy of Physician Assistants, and is certified through the National Commission on Certification of Physician Assistants.

Rebecca Shepherd, PA-C has been a physician assistant since 2006. She has worked in urgent care and emergency medicine departments in the Buffalo area, also having practiced alternative and complementary medicine in Buffalo and Fredonia.

She grew up in a family of physicians in Silver Creek, New York, and graduated with her physician assistant degree from D’Youville College. Prior to that, she earned a master of education degree from SUNY Fredonia, and spent many years teaching pre-K through high school, and working with persons with developmental disabilities.

Erin Vogl, PA, earned both her Bachelors of Science and Masters of Science from Daemen University.

Vogl brings over four years of internal medicine experience. She has a wealth of experience with in-home health assessments, as well as working in group homes and with developmentally disabled patients. A Colden resident, Vogl “understands the importance of keeping health care close to home and looks forward to providing accessible health care to those in our rural community.”




Lorri Hintz, RN – Outpatient Supervisor

Reid Gunnersen – Practice Manager

Jennifer Siragusa, RN – Director of Patient Services