Jessica Buriak is a primary care provider, practicing in Internal Medicine in Butler, Pennsylvania. Dr. Buriak is highly rated in 22 conditions, according to our data. Her top areas of expertise are Vitamin B12 Deficiency Anemia, Folate Deficiency, Multiple Carboxylase Deficiency, and Subacute Combined Degeneration.

Vidya Szymkowiak, MD, specializes in internal medicine and is certified by the American Board of Internal Medicine. She practices at Russellton Medical Group-UPMC and is affiliated with UPMC St. Margaret. She completed her fellowship and medical degree at the University of Pittsburgh School of Medicine. Dr. Szymkowiak is highly rated in 1 condition, according to our data. Her top areas of expertise are Familial Hypertriglyceridemia, Vitamin B12 Deficiency Anemia, Folate Deficiency, and Multiple Carboxylase Deficiency.

Heather Hanzlik, MD, specializes in internal medicine and is certified by the American Board of Internal Medicine. She practices at Natrona Heights Medical Associates-UPMC and is affiliated with UPMC St. Margaret. She completed her medical degree at Temple University School of Medicine and residency at Allegheny General Hospital Robert Wood Program. Her top areas of expertise are Hypothyroidism, Obesity in Children, Glucose-Galactose Malabsorption Deficiency, and Glucose Phosphate Isomerase Deficiency.

Xiaohong Wang, MD, specializes in internal medicine and is certified by the American Board of Internal Medicine. She practices at Natrona Heights Medical Associates-UPMC and is affiliated with UPMC St. Margaret. She completed her medical degree at Shanghai Medical University. Her top areas of expertise are Kienbock's Disease, Migraine, Low Blood Pressure, and Type 2 Diabetes (T2D).

Shashikala Sarma, MD, is an internal medicine physician and certified in internal medicine by the American Board of Internal Medicine. She is a member of American College of Physicians.  Dr. Sarma graduated from Kurnool Medical College in India. She completed her residency at St. Francis Medical Center in Pittsburgh.  Dr. Sarma has been with Russellton Medical Group-UPMC since 1996. She practices adult medicine, geriatric care, preventative medicine, and enjoys patient care. Her top areas of expertise are Hypothyroidism, Obesity in Children, Apo A-I Deficiency, and Fish-Eye Disease.

Seema Guglani, MD, is an internal medicine physician, certified in internal medicine by the American Board of Internal Medicine. She is a member of American College of Physicians. Dr. Guglani attended Maulana Azad Medical College in India and completed her residency at UPMC Shadyside, winning the award for “Best Resident.” Dr. Guglani has been in practice at Russellton Medical Group-UPMC since 1996. She is known as a compassionate care provider who is recognized by UPMC for diabetes care. Dr. Guglani is especially interested in preventive medicine, adult and geriatric care, and female health. She enjoys outdoor activities, travel, and music. Her top areas of expertise are Maturity Onset Diabetes of the Young, Tracheitis, Gallstones, and Type 2 Diabetes (T2D).

Dominick DeFrances, DO, specializes in internal medicine and is certified by the American Board of Internal Medicine. He practices at Natrona Heights Medical Associates-UPMC and is affiliated with UPMC St. Margaret. He completed his medical degree at Philadelphia College of Osteopathic Medicine. His top areas of expertise are Glucose-Galactose Malabsorption Deficiency, Glucose Phosphate Isomerase Deficiency, Congenital Sucrase-Isomaltase Deficiency, and Pneumonia.

Mark Fantaski, MD, specializes in internal medicine and is board-certified in internal medicine by the American Board of Internal Medicine. He practices at HealthQuest Medical Associates - UPMC and is affiliated with UPMC Passavant. Dr. Fantaski completed his residency at Allegheny General Hospital and medical education at Thomas Jefferson University Medical College. LGBTQIA+ Affirming: This provider has completed training on how to create a safe, comfortable, and welcoming environment for LGBTQIA+ patients. This provider may or may not offer LGBTQIA+ specific medical or surgical care. Please ask when scheduling. Are you already a patient of this provider and have a MyUPMC account? Log in to MyUPMC to schedule. Dr. Fantaski is highly rated in 3 conditions, according to our data. His top areas of expertise are Prekallikrein Deficiency, Congenital Anti-Plasmin Deficiency, Disseminated Intravascular Coagulation, and Cirrhosis.

Joseph Calhoun, DO, is certified in internal medicine by the American Board of Internal Medicine. He is affiliated with UPMC Passavant. He completed his residency at Allegheny General Hospital and medical degree at Philadelphia College of Osteopathic Medicine. Dr. Calhoun is highly rated in 3 conditions, according to our data. His top areas of expertise are Prekallikrein Deficiency, Congenital Anti-Plasmin Deficiency, Disseminated Intravascular Coagulation, and Fibrosing Mediastinitis.

Matthew Joseph, MD, is an internal medicine physician and certified in internal medicine by the American Board of Internal Medicine. Dr. Joseph received his medical degree from the West Virginia University School of Medicine and completed his residency at UPMC. Are you already a patient of this provider and have a MyUPMC account? Log in to MyUPMC to schedule. Dr. Joseph is highly rated in 2 conditions, according to our data. His top areas of expertise are Rotor Syndrome, Dubin-Johnson Syndrome, SVC Obstruction, Diabetic Neuropathy, and Ureteroscopy.

Saied Sanjari is a primary care provider, practicing in Internal Medicine in Cabot, Pennsylvania. His top areas of expertise are Heart Failure with Preserved Ejection Fraction (HFpEF), Heart Failure, Pulmonary Edema, Charles Bonnet Syndrome, and Bone Marrow Aspiration.

William Oleksak is a primary care provider, practicing in Internal Medicine in Ford City, Pennsylvania. Dr. Oleksak is highly rated in 14 conditions, according to our data. His top areas of expertise are Sitosterolemia, Hypothyroidism, Hypertension, and Glucocorticoid-Remediable Aldosteronism.

Angela Rhoades is a primary care provider, practicing in Internal Medicine in Butler, Pennsylvania. Dr. Rhoades is highly rated in 4 conditions, according to our data. Her top areas of expertise are Necrosis, Familial Neurocardiogenic Syncope, Urinary Tract Infection in Children, Endoscopy, and Ureteroscopy.

David Vasil is a primary care provider, practicing in Internal Medicine in Butler, Pennsylvania. Dr. Vasil is highly rated in 4 conditions, according to our data. His top areas of expertise are Thrombocytopenia, Adult Immune Thrombocytopenia, Immune Thrombocytopenic Purpura (ITP), Gallbladder Removal, and Endoscopy.

Fozia Chatta is a primary care provider, practicing in Internal Medicine in Butler, Pennsylvania. Dr. Chatta is highly rated in 2 conditions, according to our data. Her top areas of expertise are Sitosterolemia, Lyme Disease, High Cholesterol, Hip Replacement, and Endoscopy.

Joanne Sickeri is a primary care provider, practicing in Internal Medicine in Butler, Pennsylvania. Dr. Sickeri is highly rated in 1 condition, according to our data. Her top areas of expertise are Low Sodium Level, Peptic Ulcer, Necrosis, Ureteroscopy, and Endoscopy.

Christine Sekula-Crocker is a primary care provider, practicing in Internal Medicine in Natrona Heights, Pennsylvania. Dr. Sekula-Crocker is highly rated in 1 condition, according to our data. Her top areas of expertise are Alpha-1 Antitrypsin Deficiency (AATD), Maturity Onset Diabetes of the Young, Hypothyroidism, High Cholesterol, and Ureteroscopy.

Monika Juszczyk is a primary care provider, practicing in Internal Medicine in Saxonburg, Pennsylvania.

Karina Rovnan is a Hospital Medicine provider in Saxonburg, Pennsylvania.

Mark Dosch, DO, is certified in internal medicine by the American Board of Internal Medicine. He is affiliated with UPMC Passavant. He completed his residency at UPMC Mercy Hospital and medical education at Lake Erie College of Osteopathic Medicine. His top areas of expertise are Wolff-Parkinson-White Syndrome, Sitosterolemia, Infant Hyperglycemia, and Prekallikrein Deficiency.

Syed Hyder, MD, is an internal medicine physician and certified in internal medicine by the American Board of Internal Medicine. Dr. Hyder received his medical degree from the llama Iqbal Medical College, completed his residency at the Polyclinic Medical Center, and his fellowship at UPMC Montefiore. Dr. Hyder's clinical interests are in geriatric medicine and he enjoys practicing in Mars, Pa. In his free time, he enjoys hiking and biking local trails, and traveling. He speaks two languages, English, and Arabic, and three dialectics which includes his native dialect, Punjabi. He also can read in five languages. His top areas of expertise are Hypertension, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Diabetic Hyperglycemic Hyperosmolar Syndrome.

Jorge Lindenbaum, MD, specializes in internal medicine and is certified by the American Board of Internal Medicine. He practices at Lindenbaum, Perryman & Associates-UPMC and is affiliated with UPMC Mercy. He completed his medical degree at National University of Buenos Aires. His top areas of expertise are Generalized Anxiety Disorder (GAD), Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, and Hypertension.

Abir Senz, DO, is an internal medicine physician and certified in internal medicine by the American Board of Osteopathic Medicine. She received her medical degree from the Pennsylvania College of Osteopathic Medicine and completed her residency at UPMC Shadyside. Dr. Senz enjoys spending time with her family and traveling. Are you already a patient of this provider and have a MyUPMC account? Log in to MyUPMC to schedule. Her top areas of expertise are Vitamin B12 Deficiency Anemia, Folate Deficiency, Multiple Carboxylase Deficiency, and Subacute Combined Degeneration.

Bonnie Case, MD, is a primary care physician and certified in internal medicine by the American Board of Internal Medicine. Dr. Case received her medical degree from the Tulane Medical School where she also completed her residency and chief resident year. Dr. Case's clinical interests include preventive care and management of chronic illness. She is a member of the American College of Physicians. Are you already a patient of this provider and have a MyUPMC account? Log in to MyUPMC to schedule. Her top areas of expertise are Melorheostosis, Melorheostosis with Osteopoikilosis, Osteopenia, and Gastroesophageal Reflux Disease (GERD).

Mariola R. Jozwiak, MD, is an internal medicine physician and certified in internal medicine by the American Board of Internal Medicine. She is a member of the American College of Physicians, Pennsylvania Medical Society, and the Allegheny County Medical Society. Dr. Jozwiak received her medical degree at the Karol Marcinkowski University of Medical Sciences in Poznan, Poland. She completed her residency at St. Francis Medical Center in Pittsburgh. In addition to English, Dr. Jozwiak is fluent in Polish. Her top areas of expertise are Idiopathic Pulmonary Fibrosis, Hypersensitivity Pneumonitis, Pulmonary Fibrosis, and Alzheimer's Disease.