Natanael Cordeiro is a graduate of UMass-Dartmouth and completed his training as a Physician Assistant at Long Island University in Brooklyn, New York. He is a Certified Physician Assistant in the Prima CARE Family Medicine/Walk-in practice of Dr. Dennis Callen in Westport, Massachusetts. Mr. Cordeiro has a Bachelor's Degree in Clinical Laboratory Science and is Board-certified by the Americal Society... Read More about Natanael Cordeiro

Dr. Callen is a graduate of the University of Lisboa Faculty of Medicine, Portugal. Upon graduating he followed up his post graduate training at Brown University's Memorial Hospital, Pawtucket, RI. Dr. Callen is board certified in Family Medicine. In addition, Dr. Callen serves as Medical Advisor to the Board of Health in the town of Westport, MA as well as... Read More about Dennis Callen, MD

Dr. Ottenstein is a graduate of Colgate University, and earned her medical degree at SUNY Upstate Medical Center. She completed the Maine-Dartmouth Family Practice Residency in Augusta, Maine, and practiced Family Medicine in Wiscasset, Maine for 25 years before joining Prima CARE in Westport, Massachusetts. Dr. Ottenstein is Board-certified in Family Practice. She has served on the faculties of the... Read More about Karen Ottenstein, MD

Dr. John Chece is a Board-Certified Family Medicine physician with Prima CARE. Dr. Chece is a graduate of Boston University School of Medicine (Master's Degree) and the The Touro University Nevada College of Osteopathic Medicine (Doctorate). He completed his Residency in Family Medicine/Osteopathic Manipulative Medicine at Kent County Hospital in Warwick. Dr. Chece served in the US Navy, stationed in... Read More about John Chece, DO

Dr. Butler attended medical school in Maine at the University of New England College of Osteopathic Medicine. He is board certified in family practice and was the Medical Director of Dartmouth Medical Center since 2000, prior to moving his practice to Westport in late 2020. His interests are in sports medicine and developing patient education strategies. He is the founder... Read More about Stephen Butler, DO

Dr. Jessica Manyan is a Board-certified Family Medicine physician who sees patients in Prima CARE's Somerset-Swansea Medical Center. Dr. Manyan earned her Doctorate in Osteopathic Medicine at the University of New England College of Osteopathic Medicine (UNECOM). She received her residency training in Family Medicine at St. Joseph's Hospital and Medical Center in Paterson, New Jersey. Dr. Manyan is a... Read More about Jessica Manyan, DO

Since 1991, the dedicated practitioners and staff at Prima CARE have been committed to the doctor/patient relationship. We know that choosing a healthcare provider is one of the most important decisions you'll ever make. That’s why all of our providers are on your side and by your side, to give you the evidence-based medical care you need today and in... Read More about Prima CARE, PC

Since 1991, the dedicated practitioners and staff at Prima CARE have been committed to the doctor/patient relationship. We know that choosing a healthcare provider is one of the most important decisions you'll ever make. That’s why all of our providers are on your side and by your side, to give you the evidence-based medical care you need today and in... Read More about Prima CARE, PC - Dr. Stephen Butler