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Dr. Ron Rakowski, a board-certified Emergency Medicine physician for more than 25 years, was born and raised in Northern New Jersey and received his undergraduate degree in Biology with honors from Harvard College.  He graduated from University of Maryland School of Medicine in Baltimore, MD and completed his Emergency Medicine residency as an active duty USAF officer in the integrated program at Wright Patterson AFB / Wright State University in Dayton, OH.  After achieving the rank of Major and completing his obligation to the USAF at The First Fighter Wing Hospital Langley AFB, he separated from the military and became a staff physician and director of the Emergency Department at Mary Immaculate Hospital in Newport News, VA.  In 2001, following the birth of his third child, he and his family relocated to Maryland, where he became a staff physician at Frederick Memorial Hospital’s Emergency Department, eventually becoming its Vice Chairman and then Medical Director.

Dr. Rakowski left FMH after 13 years and since has held various appointments, including as an internal travel physician with TeamHealth (staff EM physician at St. Joseph’s in Syracuse, NY and staff EM physician and director at St. Joseph’s in Reading, PA), staff EM physician with Holy Cross Hospital (Germantown, MD), staff EM physician with UPMC (Susquehanna / Williamsport, PA), and staff EM physician with WellSpan (Gettysburg, PA and Good Samaritan in Lebanon, PA).  When not in the ED, Dr. Rakowski has organized several medical mission trips to the Amazon basin in Peru and the mountain communities in Costa Rica.  

He continues to reside in Maryland with his wife and two dogs.  Dr. Rakowski looks forward to his involvement with RediCare Mobile Health Service and the impact the organization will have in keeping our communities at home, safe and healthy.

John Watts Haresch, MD is a family medicine physician who joined the practice in 2024. He currently focuses on the care of older adults. He previously served as a Regional Medical Officer with the U.S. Department of State, operated a full-spectrum private practice, and has been medical director of organizations meeting the needs of underserved communities. He completed medical school and family medicine residency in the University of North Carolina system.

Abraham Mbangowah, MSN, FNP, is a compassionate family nurse practitioner with nearly 15 years of experience working with patients of all ages. He’s highly skilled in all areas of primary, urgent, and preventive care.

Abraham earned his associate's degree in general studies at Prince George’s Community College in Largo, Maryland. He received his bachelor’s degree in nursing at Coppin State University in Baltimore, Maryland, where he graduated cum laude and was a member of the Mary Mahoney Honors Society. Abraham received his master’s degree and family nurse practitioner training at Chamberlain University in Irving, Texas. 

He’s a certified family nurse practitioner (FNP). Abraham specializes in general medicine and all areas of primary care, including the treatment of illnesses, diseases, and mental health conditions. He completes continuing education to provide the latest advances in medical care.

Abraham speaks English, French, and Creole. When he’s not working, he enjoys spending time with family and friends.

Abraham is passionate about caring for his patients and warmly welcomes them to Diversity Health Clinic LLC.  

Akukeng W. Mba, MSN, FNP, CFCS, is an experienced family nurse practitioner with 15 years of experience, including almost five experience as a foot care specialist. She’s highly skilled in exceeding the general and podiatry needs of patients aged 12 and older.

Akukeng received her bachelor’s and master’s degrees in nursing and family nurse practitioner credentials from Coppin State University in Baltimore, Maryland. She is a registered nurse and family nurse practitioner (FNP) who maintains her advanced medical credentials with continuing education.

Akukeng has worked in hospital and clinic settings. She has expertise in medication administration, nursing education, critical care medicine, healthcare management, advanced cardiac life support, and foot care. Akukeng specializes in routine foot assessments, diabetic foot exams, callus debridement, and managing conditions that affect the toenails.

Akukeng loves spending time with her friends and family when she’s not caring for patients. She welcomes new and existing patients to Diversity Health Clinic LLC and looks forward to improving their health and quality of life. 

Catherine Holder, PA-C, is a physician assistant with more than 10 years of experience. At Fairfax Colon & Rectal Surgery, PC. Catherine specializes in diagnosing and treating anal pain, hemorrhoids, abscesses, and other colorectal conditions.

Catherine completed her undergraduate and physician assistant training at Marquette University in Milwaukee, Wisconsin, before returning to her home state of Alaska to specialize in colon and rectal surgery. During the early years of her career, Catherine met her husband, an Air Force pilot, and relocated to Washington state, where she continued to specialize in surgery.

After welcoming their third child, Catherine and her husband were stationed in Illinois. Catherine transitioned into being a stay-at-home parent during this time before having her third child and moving to Northern Virginia. She is thrilled to rejoin the workforce and return to her passion of helping others at Fairfax Colon & Rectal Surgery, PC.

With extensive education, training, and a compassionate demeanor, Catherine hopes to help her patients feel empowered to face their medical and surgical concerns.

• PA, Marquette University, 2010
• B.S. Biomedical Sciences, Marquette University, 2009

Alexandra Minutillo, PA-C, is a physician assistant at Fairfax Colon & Rectal Surgery, PC. She earned her Bachelor of Arts in Chemistry with a minor in Creative Writing from Washington & Lee University and her Master of Physician Assistant Studies from Chatham University in Pittsburgh, Pennsylvania.

Alexandra began her career at Fairfax Colon & Rectal Surgery in September 2024, where she specializes in the diagnosis and treatment of hemorrhoids, pilonidal cysts, anal pain, abscesses, pruritus, and other colorectal conditions. She was drawn to colorectal surgery during her PA school training, where she developed a strong interest in both the clinical and procedural aspects of the field.

She values building trust with her patients and takes pride in guiding them through sensitive concerns with compassion and clarity. In her spare time, she enjoys exploring Washington, D.C., and spending time with her family and friends.

• Master of Physician Assistant Studies, Chatham University, 2024
• B.A. Chemistry & Creative Writing, Washington & Lee University, 2022