PentaHealth

Healthcare Services

Family Medicine

John Khalifa, MD

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About John

John Khalifa, MD is a third generation physician (his father a surgeon, his grandfather a family practitioner) who brings his patients years of experience and a focus on treating the “whole” person.

Dr. Khalifa completed his residency in 2003 at Crozer-Keystone Family Practice Residency, an affiliate of Temple University School of Medicine. He was also the elected Chief Resident and recipient of the Resident Teacher of the Year Award. Dr. Khalifa is also the President of PentaHealth.

Dr. Khalifa is board certified by the American Board of family practice and has been voted as one of the Top Doctors of the MainLine Today since 2009. He has also been a recipient of Philadelphia Magazine’s Top Doctors since 2017. Dr. Khalifa is also on the Medical Advisory Board for ACAC Health Center. Dr. Khalifa is on staff at MLH Hospitals as well as Chester County Hospital.

Dr. Khalifa provides for the healthcare needs of the entire family. He personalizes your healthcare with an emphasis on wellness, nutrition and current evidence-based medicine. In other words, Dr. Khalifa is committed to providing you and your family with compassionate, comprehensive healthcare. He offers convenient office hours that are designed to fit the schedules of today’s busy families, both for routine appointments and for same-day “sick” visits.

Erin Lender, CRNP

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About Erin

Erin Lender, CRNP joined PentaHealth formerly Gateway Medical Associates in 2018. She grew up in West Chester, PA and received both her Bachelor’s and Master’s degrees in Nursing from Thomas Jefferson University in Philadelphia. Prior to becoming a Family Nurse Practitioner, Erin worked as a bedside nurse at The Children’s Hospital of Philadelphia in the Neonatal Intensive Care Unit and at the Reading Hospital on the Stroke Unit.

Erin enjoys working with patients of all ages and has a passion for health promotion, illness prevention, and physical and mental wellness. In her spare time, Erin likes to unwind with yoga and reading. She has an extensive collection of board games and is known by friends and family as “The Game Master”. She lives in Downingtown with her husband and twin stepsons.

 

Denise Meli, CRNP

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About Denise

Denise started with PentaHealth formally Gateway Medical Associates in August of 2017. Post High School she served in the Navy for six years. She received her Bachelors of Science in Nursing from the University of Maryland, Baltimore. After graduation, she worked as a labor and delivery nurse for 15 years. She returned to school in 2012 and earned her Graduate degree and Family Nurse Practitioner Certification from Widener University.

Prior to joining PentaHealth, Denise worked at Honey Brook Family Practice, Tel Hai, Hickory House, and St Martha’s skilled rehabilitation facilities. When Denise is not busy seeing patients, she enjoys hiking, trail running and spending time with her four kids.

Marianne Nikas, MD

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About Marianne

Dr. Marianne Nikas received her medical degree in 1997 from Pennsylvania State University in Hershey, Pennsylvania, and finished her residency training at Chestnut Hill Hospital in 2000. Some of her best and most valuable experiences during her education occurred when she was volunteering for the Indian Health Service in Lame Deer, Montana, and at the Good Shepherd Hospital in Swaziland (Africa).

Board Certified in Family Medicine, Dr. Nikas has special interest in preventive medicine, LGBTQ+ health, minority health equity, gynecology, and geriatrics as well as special training in dermatologic/orthopedic procedures.

Dr. Nikas grew up locally in Malvern and Hershey and attended Dartmouth College in New Hampshire. She is married with two children and one energetic dog. In her spare time, Dr. Nikas enjoys spending time with family and friends, traveling, teaching Sunday School, and performing music with The Immaculata Symphony and The Chesco Pops. She is very grateful to work with the wonderful and talented coworkers at PentaHealth Colonial Family Practice to serve the people of Coatesville and other local towns since October 2002.

Drew Rowan, MD

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About Drew

Drew Rowan grew up in Newtown Square, PA and graduated from Malvern Prep high school in 2003, after which he attended Franklin and Marshall College in Lancaster. He graduated with a bachelor’s degree in Neuroscience and four years worth of fond memories of varsity swimming.

From Franklin and Marshall, Dr. Rowan moved to Drexel University where he completed his master’s degree in Medical Science. After receiving his degree, Dr. Rowan then attended Jefferson Medical College, from which he graduated in 2013.

Dr. Rowan completed his residency at Chestnut Hill Hospital in 2016, and is Board Certified in Family Practice. He is a strong proponent of preventative care including cancer screening and vaccination. He has a special interest in office procedures and pediatrics, as well as the management of diabetes and depression.

Outside of work Dr. Rowan enjoys reading, drinking tea, and trying to keep up with his children.

Jessica Schleusner, DO

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About Jessica

Dr. Schleusner was born and raised in Delaware County, PA. She attended Messiah College and graduated magna cum laude in 2009, with a BS in Biology and minor in Psychology. After college, she went on to receive her medical degree from Philadelphia College of Osteopathic Medicine where she was a member of the Sigma Zeta Honors Society and recipient of the American College of Osteopathic Family Physician Scholarship. She was also Vice President of Community Service in the Christian Medical Association.

In 2013, Dr. Schleusner joined the Crozer Keystone Family Medicine residency program in Springfield, PA. While there, she was involved in many programs, including the Pediatric Asthma Task Force and the Inpatient Quality Improvement Team. She was Chief Resident in her last year.

Dr. Schleusner joined PentaHealth, formerly Gateway Medical Associates, in 2016. She has special interests in preventive medicine, pediatrics, and women’s health. Her patients are very important to her, and she strives to build relationships with them that facilitate a partnership in their care. She is passionate about family medicine and providing the best care for each patient.

Dr. Schleusner lives Chester County with her family. In her free time, she enjoys spending time with friends and family, traveling to the beach, crocheting and spin classes.