MediFind found 70 doctor with experience in Vitamin D Deficiency near Riverhead, NY. Of these, 61 are Experienced and 9 are Advanced.
Long Island Select Healthcare, Inc
Susan Melnick is a Nurse Practitioner in Riverhead, New York. Ms. Melnick is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Vitamin D Deficiency, Schizoaffective Disorder, Urea Cycle Disorders (UCD), and Muscle Spasms.
Peconic Bay Medical Group At Riverhead, 34 Commerce Drive
After receiving his Bachelor of Arts Degree at the University Of Pennsylvania, Dr. Evan Nadal attended Medical School at the New York College of Osteopathic Medicine. Upon graduating from Medical School, Dr. Nadal completed a Residency in Family Medicine at The University of Medicine and Dentistry of New Jersey and became Board Certified in Family Medicine. He then went on to work for Montefiore Medical Center as a Family Physician and Clinic Medical Director for 14 years. Dr. Nadal joined the part-time teaching staff in the department of Family Medicine at the New York College of Osteopathic Medicine soon after graduating from his residency and has continued to teach medical students ever since. Dr. Nadal moved to the East End of Long Island in 1998 where he took over a Family Medicine Practice in Riverhead, New York. Dr. Nadal become the Assistant Program Director of the Family Medicine Residency at Peconic Bay Medical Center in Riverhead New York in 2011 and then became the Program Director of the Family Medicine Residency at Peconic Bay Medical Center in January of 2016. In addition to being the Program Director for the Family Medicine Residency at Peconic Bay Medical Center/ Northwell Health in Riverhead New York, Dr. Nadal continues to teach medical students along with Family Medicine Residents and maintains a busy Family Medicine Practice in Riverhead, New York. Dr. Nadal is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Lyme Disease, Anemia, High Cholesterol, and High Potassium Level.
Vishnudat Seodat is a primary care provider, practicing in Family Medicine in Riverhead, New York. Dr. Seodat is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Adenine Phosphoribosyltransferase Deficiency, Hereditary Xanthinuria, Adenylosuccinate Lyase Deficiency, and Hypothyroidism.
Charmian Cohen is an Endocrinologist in Riverhead, New York. Dr. Cohen is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Hypothyroidism, Obesity in Children, Hyperthyroidism, and Hashimoto Thyroiditis.
Long Island Select Healthcare, Inc
Matthew Brown is a Physician Assistant in Riverhead, New York. Mr. Brown is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Vitamin D Deficiency, Schizoaffective Disorder, and Urea Cycle Disorders (UCD).
Lilly Steel is a primary care provider, practicing in Internal Medicine in Riverhead, New York. Dr. Steel is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Hypertension, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Sitosterolemia.
Stephanie Branigan is a primary care provider, practicing in Internal Medicine in Riverhead, New York. Dr. Branigan is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Glucocorticoid-Remediable Aldosteronism, Hypertension, Familial Hypertension, and Genital Herpes.
Shaikh Ahmed is a Family Medicine provider in Riverhead, New York. Dr. Ahmed is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Liver Failure, Heart Failure with Preserved Ejection Fraction (HFpEF), Venous Thromboembolism (VTE), Gastrostomy, and Endoscopy.
Caremed Primary And Urgent Care PC
John Veliath is an Emergency Medicine provider in Riverhead, New York. Dr. Veliath is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Vitamin B12 Deficiency and Vitamin D Deficiency.
Michael Dempsey is a primary care provider, practicing in Internal Medicine in Riverhead, New York. Dr. Dempsey is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, Hypertension, and Hypothyroidism.
Suffolk Dermatology PC
Mariah Messina is a Physician Assistant in Riverhead, New York. Ms. Messina 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 Plaque Psoriasis.
Dr. Bellamy Brook Do PC
Bellamy Brook is a primary care provider, practicing in Family Medicine in Riverhead, New York. Dr. Brook is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Glucocorticoid-Remediable Aldosteronism, Hypertension, Familial Hypertension, and Cirrhosis.
Peconic Bay Primary Medical Care
Christopher Fecek is a primary care provider, practicing in Family Medicine in Riverhead, New York. Dr. Fecek is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Rocky Mountain Spotted Fever, Vitamin D Deficiency, Spotted Fever, and High Cholesterol.
Peconic Bay Primary Medical Care
Steven Spiegel is a primary care provider, practicing in Internal Medicine in Riverhead, New York. Dr. Spiegel is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Hypothyroidism, Obesity in Children, End-Stage Renal Disease (ESRD), and High Cholesterol.
Roy Prashad is a Rheumatologist in Riverhead, New York. Dr. Prashad is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Rheumatoid Arthritis (RA), Polymyositis, Bursitis, and Gout.
Peconic Bay Medical Group At Manorville, Building D1
Fang Chen is a primary care provider, practicing in Internal Medicine in Manorville, New York. Dr. Chen is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Hypothyroidism, Obesity in Children, Rocky Mountain Spotted Fever, and High Cholesterol.
Peconic Bay Medical Group At Manorville, Building D1
Jeffrey Tiu is a primary care provider, practicing in Family Medicine in Manorville, New York. Dr. Tiu is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Rocky Mountain Spotted Fever, Spotted Fever, High Cholesterol, and Hypothyroidism.
Peconic Bay Medical Group At Hampton Bays
Darya Sterling is a primary care provider, practicing in Family Medicine in Hampton Bays, New York. Dr. Sterling is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Vitamin B12 Deficiency, Subacute Combined Degeneration, High Cholesterol, and Hypothyroidism.
North Shore Hematology Oncology Associates PC
John Muratori is a primary care provider, practicing in Family Medicine in Wading River, New York. Dr. Muratori is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, Hypertension, Blood Clots, and Hip Replacement.
Northwell Health Physician Partners Endocrinology At Wading River
Michael Schaefer is an Endocrinologist in Wading River, New York. Dr. Schaefer is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Type 2 Diabetes (T2D), Type 1 Diabetes (T1D), Hypothyroidism, and Obesity in Children.
Last Updated: 10/30/2025




