Primary Care - Port Orange

Halifax Health – Primary Care has two locations in Port Orange, Florida. 

Halifax Health – Primary Care, Dunlawton
1165 Dunlawton Ave., Suite 105
Port Orange, FL
386.425.4787 | Fax:  386.425.4788

Halifax Health – Primary Care, Williamson
5440 S. Williamson Blvd., Suite 103
Port Orange, FL
386.425.8737 | Fax:  386.425.7577

Our team of specialized physicians can treat a wide variety of common conditions and illnesses, as well as provide routine vaccinations.

Providers at Halifax Health – Primary Care, Dunlawton

Joshua Grube, MD

About Joshua Grube, MD


Joshua Grube, MD, is a board-certified family medicine physician, who graduated magna cum laude from Oklahoma City University, with a bachelor’s degree in biochemistry. He then obtained his medical degree from the University of Oklahoma College of Medicine and completed his residency at Halifax Health Medical Center in Daytona Beach, Florida in 2018.

Dr. Grube enjoys all facets of wellness with an emphasis in caring for patients with chronic pain, musculoskeletal problems as well as women’s health.


About Naomi Flock, MD


Naomi Flock, MD, MPH, is a sunshine state native originally from Miami, FL. She earned her bachelor’s degree in biology from Florida State University and continued her studies at Florida State University College of Medicine. Dr. Flock earned her master’s degree in Public Health from the University of West Florida with a focus on adolescent health and prevention. In 2017, Dr. Flock completed her Family Medicine residency as chief resident at New Hanover Regional Medical Center in Wilmington, North Carolina, and is a board-certified family physician.

Dr. Flock loves building relationships with families and taking care of her community in all stages of life. She has a passion for maternal and child care, and provides all age pediatric care. Dr. Flock also provides prenatal care, in addition to obstetric deliveries and new born care at Halifax Health Medical Center of Daytona Beach. She has additional experience in adolescent medicine, risk reduction and prevention, reproductive health and LGBTQ+ care.

Dr. Flock returned to Florida in 2020 and lives with her husband Jens, who is also a physician. She enjoys cooking, stand-up paddle boarding, the beach, painting, making jewelry and spending time with her husband and their cat Wilmy.


About Natalie Negròn, DO


Natalie Negròn, DO, is a board-certified Family Medicine physician who earned her Doctor of Osteopathic Medicine at Nova Southeastern University in Fort Lauderdale, Florida. In 2019, she completed her residency at HCA Healthcare/University of South Florida Morsani College of Medicine GME at Oak Hill Hospital in Brooksville, Florida where she served as Chief Resident.

During her residency, Dr. Negròn completed an Area of Concentration track in Children & Adolescent Medicine.  She currently serves as a Clinical Instructor and Founding Faculty Member for the Orlando College of Osteopathic Medicine.  As a physician, she enjoys all facets of wellness with an emphasis on women’s health, all-age pediatric care, mental health and preventative care.

In her spare time, she enjoys gardening, traveling and exploring new cities, learning new recipes, and spending quality time with her husband, Joshua.


Providers at Halifax Health – Primary Care, Williamson

About Candice Marois, APRN

About Candice Marois, APRN

Candice (Candi) Marois, APRN, is a board-certified Family Nurse Practitioner who earned her master’s degree in nursing from Chamberlain University. She joined Halifax Health in 2008.

She has a strong background in emergency medicine and has clinical training in women’s health, pediatrics and family medicine.


About Priscilla Selig, APRN

Priscilla Selig, APRN is a board-certified Family Nurse Practitioner, who earned her bachelor’s degree in nursing at Hawaii Pacific University, and her master’s degree from Purdue Global University. 

Priscilla first joined Halifax Health in 2016 as an RN in the Emergency Department. Priscilla’s clinical training is in family healthcare across the life span, including children and women’s care.  She focuses on preventive care and building a healthy lifestyle.

Originally from New York, Priscilla’s love of the beach brought her to Florida. She loves spending time with her husband and daughter. In her spare time she enjoys surfing, running and doing water activates. Although she is a transplant, she loves Florida and all it has to offer.

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