MediFind found 7 doctor with experience in Vitamin D Deficiency near Clarion, PA. Of these, 6 are Experienced and 1 are Advanced.
UPMC Primary Care
Randy Kreider, MD, is a family medicine physician. He is certified by the American Board of Family Medicine. Dr. Kreider received his medical degree from the Pennsylvania State University College of Medicine and completed his family medicine residency at Harrisburg Hospital. Dr. Kreider’s clinical interests include health care for chronic diseases such as heart disease and diabetes, and preventive medicine. He is a member of the American Academy of Family Physicians and formerly, a physician with the United States Air Force. Dr. Kreider is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Cerebral Hypoxia, Memory Loss, Type 2 Diabetes (T2D), Hip Replacement, and Gastrostomy.
James Rummel is a primary care provider, practicing in Family Medicine in Clarion, Pennsylvania. Dr. Rummel is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Maturity Onset Diabetes of the Young, Type 2 Diabetes (T2D), Glucocorticoid-Remediable Aldosteronism, and Hypertension. Dr. Rummel is currently accepting new patients.
Cynthia Hoffmeier is a primary care provider, practicing in Family Medicine in Clarion, Pennsylvania. Dr. Hoffmeier is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Familial Hypertriglyceridemia, Hives, Maturity Onset Diabetes of the Young, and Melorheostosis with Osteopoikilosis.
Butler Medical Providers
Amanda Adams is a primary care provider, practicing in Family Medicine in Clarion, Pennsylvania. Dr. Adams is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Subacute Combined Degeneration, Vitamin D Deficiency, Folate Deficiency, and Multiple Carboxylase Deficiency.
Brandi Hudson is a Nurse Practitioner in Clarion, Pennsylvania. Ms. Hudson is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Vitamin D Deficiency and Chronic Rhinosinusitis with Nasal Polyps (CRSwNP).
Brooker Kidney Care, Inc.
David Brooker is a Nephrologist in Cranberry, Pennsylvania. Dr. Brooker is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Renovascular Hypertension, Diabetic Nephropathy, Acute Kidney Failure, and Low Sodium Level.
Butler Medical Providers
Janice Semeyn is a primary care provider, practicing in Family Medicine in Fairmount City, Pennsylvania. Dr. Semeyn is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Pneumonia, Necrosis, Sinusitis, Endoscopy, and Gastrostomy.
Last Updated: 10/30/2025

