MediFind found 33 doctor with experience in Vitamin B12 Deficiency near Grand Rapids, MI. Of these, 33 are Experienced.
Corewell Health Grand Rapids Hospitals Hematology Oncology - Lemmen-Holton
Anas Al is a Hematologist and a Hematologist Oncology provider in Grand Rapids, Michigan. Dr. Al has been practicing medicine for over 35 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Multiple Myeloma, Familial Prostate Cancer, Urothelial Cancer, and Muscle Invasive Bladder Cancer.
Corewell Health Medical Oncology Program - Lemmen-Holton
Stephanie Dublis is a Hematologist and an Oncologist in Grand Rapids, Michigan. Dr. Dublis has been practicing medicine for over 22 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Small Cell Lung Cancer (SCLC), Lung Cancer, Pleuropulmonary Blastoma, Angiosarcoma, and Bone Marrow Aspiration. Dr. Dublis is currently accepting new patients.
The Cancer & Hematology Centers
Colin Hardin is a Hematologist and a Hematologist Oncology provider in Grand Rapids, Michigan. Dr. Hardin has been practicing medicine for over 15 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Thrombocytopenia, Adult Immune Thrombocytopenia, Hemangioma Thrombocytopenia Syndrome, Anemia, and Bone Marrow Aspiration. Dr. Hardin is currently accepting new patients.
The Cancer & Hematology Centers
Brett Brinker is a Hematologist Oncology provider in Grand Rapids, Michigan. Dr. Brinker has been practicing medicine for over 26 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are B-Cell Lymphoma, Acute Myeloid Leukemia (AML), Non-Hodgkin Lymphoma, Acute Myeloblastic Leukemia without Maturation, and Bone Marrow Aspiration. Dr. Brinker is currently accepting new patients.
Corewell Health Grand Rapids Hospitals Hematology Oncology - Lemmen-Holton
Mohammad Alhyari is a Hematologist and a Hematologist Oncology provider in Grand Rapids, Michigan. Dr. Alhyari has been practicing medicine for over 18 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Large-Cell Immunoblastic Lymphoma, Chronic Lymphocytic Leukemia (CLL), Pleuropulmonary Blastoma, and Lung Cancer. Dr. Alhyari is currently accepting new patients.
Grand Valley Medical Specialists - Wyoming
Thomas Bilisko is a primary care provider, practicing in Internal Medicine in Wyoming, Michigan. Dr. Bilisko has been practicing medicine for over 36 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Infant Hyperglycemia, Macroamylasemia, Familial HDL Deficiency, and Apo A-I Deficiency. Dr. Bilisko is currently accepting new patients.
Grand Valley Medical Specialists - Wyoming
John Hamersma is a primary care provider, practicing in Family Medicine in Wyoming, Michigan. Dr. Hamersma has been practicing medicine for over 27 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Obesity in Children, High Cholesterol, Hypertensive Heart Disease, and Hypothyroidism. Dr. Hamersma is currently accepting new patients.
The Cancer & Hematology Centers - Foremost Drive Ste 200
Frances Wong is a Hematologist Oncology provider in Grand Rapids, Michigan. Dr. Wong has been practicing medicine for over 19 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Thrombocytopenia, Hemangioma Thrombocytopenia Syndrome, Childhood Iron Deficiency Anemia, Essential Thrombocythemia, and Bone Marrow Aspiration. Dr. Wong is currently accepting new patients.
The Cancer & Hematology Centers - Foremost Drive Ste 200
William Fabricius is an Otolaryngologist and a Hematologist in Grand Rapids, Michigan. Dr. Fabricius has been practicing medicine for over 24 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Chronic Lymphocytic Leukemia (CLL), Multiple Myeloma, Relapsed Refractory Multiple Myeloma (RRMM), and Inflammatory Breast Cancer. Dr. Fabricius is currently accepting new patients.
The Cancer & Hematology Centers
Britni Mashni is a Hematologist and a Hematologist Oncology provider in Grand Rapids, Michigan. Dr. Mashni has been practicing medicine for over 11 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are HER-2 Positive Breast Cancer, Monoclonal Gammopathy of Undetermined Significance (MGUS), Schnitzler Syndrome, and Triple-Negative Breast Cancer. Dr. Mashni is currently accepting new patients.
Grand Valley Medical Specialists - East Paris Avenue
Melonie Ice is a primary care provider, practicing in Internal Medicine in Grand Rapids, Michigan. Dr. Ice has been practicing medicine for over 40 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Sitosterolemia, Hypothyroidism, Collagenous Colitis, and Hypertension. Dr. Ice is currently accepting new patients.
Corewell Health Internal Medicine - Wyoming
David Heyboer is a primary care provider, practicing in Internal Medicine in Wyoming, Michigan. Dr. Heyboer has been practicing medicine for over 35 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Crohn's Disease, Glucocorticoid-Remediable Aldosteronism, Hypertension, and Familial Hypertension.
Advantage Health/saint Mary's Medical Group
Barbara Mcgrath is an Oncologist and a Hematologist Oncology provider in Grand Rapids, Michigan. Dr. Mcgrath is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Angiosarcoma, Inflammatory Breast Cancer, Familial Colorectal Cancer, and Lung Cancer. Dr. Mcgrath is currently accepting new patients.
Advantage Health/saint Mary's Medical Group
Lloyd Geddes is a Hematologist Oncology specialist and a Hematologist in Grand Rapids, Michigan. Dr. Geddes is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Deep Vein Thrombosis, Inflammatory Breast Cancer, Non-Hodgkin Lymphoma, and Non-Small Cell Lung Cancer (NSCLC). Dr. Geddes is currently accepting new patients.
Saint Marys Health Services
Robert Riekse is a primary care provider, practicing in Geriatrics and Internal Medicine in Grand Rapids, Michigan. Dr. Riekse is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Atrial Fibrillation, Parkinson's Disease, Anemia, and Pericarditis. Dr. Riekse is currently accepting new patients.
Daniel Carrel is a primary care provider, practicing in Internal Medicine and General Practice in Grand Rapids, Michigan. Dr. Carrel is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Nephrosclerosis, Renovascular Hypertension, Hypothyroidism, and Hypertensive Heart Disease. Dr. Carrel is currently accepting new patients.
Gary Poelman is a Geriatrics specialist and an Emergency Medicine provider in Grand Rapids, Michigan. Dr. Poelman is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Vitamin B12 Deficiency, Urinary Tract Infection (UTI), Dementia, and Necrosis.
Metropolitan Hospital
Janice Wabeke is a primary care provider, practicing in Family Medicine in Comstock Park, Michigan. Dr. Wabeke is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Myelodysplastic Syndrome (MDS), Generalized Anxiety Disorder (GAD), Type 2 Diabetes (T2D), and Tracheitis. Dr. Wabeke is currently accepting new patients.
Grand Valley Medical Specialists - East Paris Avenue
Daniel Bergner is a primary care provider, practicing in Internal Medicine in Grand Rapids, Michigan. Dr. Bergner has been practicing medicine for over 21 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Sitosterolemia, Melorheostosis, Melorheostosis with Osteopoikilosis, and Osteopenia. Dr. Bergner is currently accepting new patients.
The Cancer & Hematology Centers - Foremost Drive Ste 200
Aaron Zarnosky is a Physician Assistant in Grand Rapids, Michigan. Mr. Zarnosky has been practicing medicine for over 24 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Myeloproliferative Neoplasms (MPN), Vitamin B12 Deficiency, and Smoldering Multiple Myeloma.
Last Updated: 01/09/2026











