Coronavirus information for patients and providers. Please create a Connect patient portal account before your visit.

A nurse practitioner fulfills an important role in the healthcare system by offering a holistic approach to health care.


Our nurse practitioners take the time to get to know you, your challenges, and your goals so they can develop a clear, comprehensive, and actionable treatment plan just for you.


Then, with a plan in place, we ensure you have the support you need to be and stay well going forward. When the Nurse Practitioner Group makes referrals, we follow up with you and your specialists to make sure your care is coordinated and remains a priority.

A Relationship Built on Trust

We value open communication with our patients, where they can speak with us with confidence. When visiting your nurse practitioner, you can consult with him or her regarding the latest treatments, questions regarding care, or any concerns you may have.


View the nurse practitioner profiles below to learn more about our dedicated team, leave a review or make an appointment.


Call us to schedule a visit at 212.326.5705 or make an appointment online.

Andrea Frantz
Washington Heights

Andrea Frantz, DNP, FNP-C, is a family nurse practitioner with a focus on adult primary care at Columbia University School of nursing, where she is also an assistant professor. She received her Master of Science in Nursing (MSN) from Yale University and her Doctorate of Nursing Practice (DNP) from Vanderbilt University. Dr. Frantz also carries a Master of Arts (MA) in Anthropology and is a graduate of the Veterans Affairs Center of Excellence in Primary Care Education Interprofessional Residency Program.

Headshot of Brittany Ray Gannon
Brittany “Ray” Gannon
Washington Heights

Brittany "Ray" Gannon, PhD, RN, AGPBNP-BC, is an assistant professor of nursing at Columbia University School of Nursing and a nurse researcher affiliated with NewYork-Presbyterian Hospital. Dr. Gannon is board-certified as adult-geriatric primary care nurse practitioner. Using a comprehensive health approach, her clinical focus includes: adult/geriatric and LGBTQ+ care, wellness, prevention, mindfulness, and complex chronic disease management.

Janejira Chaiyasit nurse practitioner
Janejira Chaiyasit
Washington Heights

Janejira Chaiyasit, DNP, RN, A-GNP-C is an adult-gerontology nurse practitioner and a teacher of nursing at Columbia University School of Nursing, her alma mater of three degrees: BS, MS, and DNP. She is also a member of the American Association of Nurse Practitioners. Chaiyasit focuses on adult health care with emphasis on health promotion, disease prevention and management, wellness, and episodic (e.g., bronchitis, pneumonia, conjunctivitis) care.

marie carmel garcon columbia nurse practitioner
Marie Carmel Garcon
Washington Heights

Marie Carmel Garcon, DNP, OCN, CCS, FNP-C is a family nurse practitioner with over two decades of experience in acute and chronic care. She cares primarily for adults, having earned a Bachelor of Science in Nursing (BSN) from Dominican College; a Master in Gerontological Nursing (65 and older) from Lehman College; a Master of Science in Nursing (MSN) from Dominican College, and a Doctor of Nursing Practice (DNP) from Pace University. Marie’s specialty is caring for the geriatric population in their homes.

Headshot of Rachel Drolet.
Rachel Drolet
Washington Heights

Rachel Drolet, MSN, RN, AGNP-BC is an instructor of nursing at Columbia University School of Nursing. Rachel’s clinical focus is on autoimmune/inflammatory diseases, and often includes nutrition, mental health, and physical therapy in patient care plans. She is bilingual in English and Spanish and is committed to personalized and compassionate patient care.

Rakiyah Jones
Washington Heights

Rakiyah Jones, DNP, MBA, MPH, FNP-BC is a family nurse practitioner and assistant professor of nursing at Columbia University School of Nursing. He has over ten years of nursing experience including serving on active duty in the United States Army as a Nurse Corps Officer. He received his Master of Science in Family Nurse Practitioner (MS) and Doctor of Nursing Practice (DNP) from Columbia University School of Nursing.

Sandra Alvarado columbia nurse practitioner group
Sandra Alvarado
Washington Heights

Sandra Alvarado, MS, RN, NPP, PMHCNS-BC is a teacher of nursing at Columbia University School of Nursing, her alma mater where she earned her Master’s Degree. Carrying over 37 years of high-level clinical practice, Alvarado is a Psychiatric Mental Health Clinical Nurse Specialist, Nurse Practitioner, and certified psychotherapist. She specializes in psychotherapy and medication management for adults.

“When I went to see my nurse practitioner again, she remembered my name and everything we talked about. That’s what you want your care provider to do. She really takes time with me”
– Patient