Our Providers
Meet Our Expert Medical Team
Meet our experienced providers and dedicated office staff, offering years of expertise in the medical industry. Ready to schedule an appointment? Call us today at (978) 354-4611!
Primary Care Providers
Samantha Amico, BSN, RN, MSN, FNP-BC
Nurse Practitioner
Maria Dalomba, NP
Nurse Practitioner
Alla Guenin, MD
Physician
Hans C. Jeppesen, MD, MBA
Physician & Founder
Gurpreet Saini, NP
Nurse Practitioner
Hospital Medicine & Geriatric Medicine
Denise Gafanhao
Nurse Practitioner
Jenya Appleton
Nurse Practitioner
Beth Rowlands
Chief Nurse Practitioner
Oleksandr Barchuk
Nurse Practitioner
Jonadab Erthon
Nurse Practitioner
Katina Herron
Nurse Practitioner
Shayla McCarthy
Nurse Practitioner
Anne Zlevor
Nurse Practitioner
Elizabeth Shortsleeve
Nurse Practitioner
Santosh Poudel, MD
Physician/Medical Director
Megan Callahan, MD
Physician/Medical Director
Behavioral Health
Lauren McNasby, LICSW, MSW, MEd.
Hans C. Jeppesen, MD, MBA
Physician & Founder
Areas of Expertise: Primary Care, Hospital Medicine and Geriatric Medicine
Dr. Hans Jeppesen is a board-certified physician in Internal Medicine, having completed his medical degree in 2005 and residency training in 2008 at the University of Minnesota. Jeppesen’s clinical practice encompasses primary care and hospital medicine and is privileged to lead a highly skilled team of medical professionals.
Before founding Charter Health in 2017, Dr. Jeppesen served as Chief of Hospital Medicine at Mass General Brigham Salem Hospital. He has been recognized as a Senior Fellow in Hospital Medicine by the Society of Hospital Medicine, reflecting his commitment to excellence in patient care and leadership in the field.
Gurpreet Saini, NP
Nurse Practitioner
Areas of Expertise: Primary Care, Hospital Medicine and Women’s Heal
Gurpreet Saini holds a Master of Science in Nursing from Salem State University and a Bachelor of Science from Merrimack College. As a licensed Adult-Gerontology Nurse Practitioner in Massachusetts, she has been dedicated to primary care for the past three years with a focus over the last two years on serving underserved populations in Springfield, MA.
Saini’s expertise includes family planning and women’s health services, offering comprehensive care such as birth control counseling, gynecological exams—including cervical cancer screening via PAP smears—breast exams, and procedures like IUD and Nexplanon insertion. Her commitment is to providing accessible and compassionate care tailored to all of her patients’ needs.
Alla Guenin, MD
Phyisician
Areas of Expertise: Primary Care, Hospital Medicine and Women’s Health
Bio coming soon!
Maria Dalomba, NP
Nurse Practitioner
Areas of Expertise: Primary Care, Hospital Medicine and Women’s Health
Bio coming soon!
Samantha Amico, BSN, RN, MSN, FNP-BC
Nurse Practitioner
Areas of Expertise: Primary Care (Adult and Geriatric)
Samantha Amico is a Board-Certified Family Nurse Practitioner with experience in teen, young adult, adult and geriatric primary care. She previously spent time working as a nursing assistant, a school nurse, a skilled nursing facility nurse and an inpatient nurse in Massachusetts.
She practices using the patient focused care model, a healthcare philosophy that shifts the focus from purely treating a disease to partnering with the whole patient. She takes time to guide her patients in taking preventive steps to maintain and improve both short term and long term health. Her approach to care emphasizes patient-provider collaboration and open communication in a non-judgmental manner. She provides individualized care plans that will align with patient lifestyle and health goals.
She has extensive experience in caring for patients with memory impairment and loss, mental health concerns, and alcohol and substance use disorders.
Lauren McNasby, LICSW, MSW, MEd.
Areas of Expertise: Behavioral Health
Lauren McNasby, who is a Beverly native, studied Social Work and Human Sexuality at Widener University, where she obtained her MSW and M.Ed. She has over 15 years of experience in medical social work, behavioral health, substance use disorders, and skilled nursing.
She has built her career around compassionate patient advocacy, care coordination, and helping individuals navigate complex healthcare and mental health challenges. Her educational background in human sexuality also informs her approach to care, helping her foster open conversations, reduce stigma, and support clients through deeply personal and sensitive experiences with understanding and respect.
Known for her collaborative and client-centered approach, she’s committed to creating meaningful connections and improving outcomes for the people and communities she serves.
