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Ofundem Akoh-Arrey Nokuri


President, Medical Director of Pediatric Medicine

Dr. Nokuri finished her undergraduate degree at Bowie State University in Maryland. She went on to earn her medical degree from the Pennsylvania State University College of Medicine in Hershey, Pennsylvania. After completing her pediatric residency at Georgetown University Hospital in Washington, DC, Dr. Nokuri went through additional training to become board certified through the American Board of Pediatrics. 
Since Dr. Nokuri previously served as an emergency room pediatrician at Sinai Hospital in Baltimore, she has an extensive background in urgent care diagnoses and treatments. Patients of Dr. Nokuri commend her caring and compassionate bedside manner, especially when caring for infants and young children. Dr. Nokuri strives to build lasting, lifelong relationships with each of her patients.

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Samuel Nokuri


CEO/Founder , Medical Director of  Adult Medicine

During his undergraduate program at Virginia Commonwealth University, Dr. Nokuri studied chemistry. After earning his bachelor’s degree, Dr. Nokuri completed his medical degree from Ross University School of Medicine in the Caribbean island of Dominica.
He then went through his residency training in internal medicine at St. Agnes Hospital in Baltimore.
To ensure he keeps offering the latest treatments and solutions for his patients, Dr. Nokuri takes continuing education courses. He went on to earn a Master of Business Administration degree (MBA) from Johns Hopkins University Carey Business School in Baltimore.
Dr. Nokuri is currently board-certified through the American Board of Internal Medicine. He also serves as a flight surgeon for the United States Air Force and Air National Guard out of Andrews Air Force Base in Maryland.  


Sharon Londeree

FNP-C, Family Nurse Practitioner

Columbia Clinical Director/Chief of Veteran Affairs

Sharon is a well-seasoned practitioner with 29 years of clinical and medical research experience. She is a member of Sigma Theta Tau International Honor Society and a graduate from Simmons College in Boston with her FNP-C. She is vastly experienced in emergent and critical care (ER and NICU) having clinical experience at Good Samaritan, Mercy Medical Center, Union Memorial Hospital, Sinai Hospital of Baltimore, Franklin Square, and even as a private family nurse practitioner for an endoscopic microsurgical practice in Towson, Maryland. In addition to her passion for nursing and serving the community, she expanded her scope by performing several research studies as a co-investigator and research associate in clinical trials for gastrointestinal diseases such as Crohn’s and Ulcerative Colitis. She also is able and certified to perform medical examinations for the Department of Transportation (DOT) and Buprenorphine/Opioid Addiction Recovery Program. Sharon enjoys building strong, healthy relationships with her patients and will forever go above and beyond the call of duty for anyone in need. 

Haley Schweizer

PA-C, Physician Assistant

Chief of Community Engagement

Haley Schweizer is a certified Physician Assistant. She was born in Newark, DE and attended undergraduate at The Johns Hopkins University, where she played Division I lacrosse and was both a captain and an All-American. She continued her lacrosse career professionally for the WPLL Fire. She graduated from Arcadia University’s Physician Assistant program. Prior to physician assistant schooling, Haley served as a physical therapy technician and did research in orthopedic surgery. She is energetic and passionate about serving other people. In her spare time, she enjoys working out, coaching lacrosse, reading, and eating pizza. 

Jo-ann Middleton

FNP-BC, MSN, FNE-A/P SANE-A, Family Nurse Practitioner
Oxon Hill Clinical Director/Chief Medical Officer

Jo-Ann is a clinical nurse practitioner with 28 years of experience in the areas of emergent/urgent care/trauma/PACU/GI and forensic nursing for the adult, adolescent, and pediatric populations in many Baltimore/Washington metro area facilities including University of Maryland Shock Trauma Center, Johns Hopkins Bayview Medical Center, Johns Hopkins Howard County General Hospital (HCGH), Sinai Hospital, Union Memorial Hospital, Good Samaritan Hospital, Washington Hospital Center, and many others.  Cur, works at HCGH where she developed the Intimate Partner Violence (IPV) Assessment program for HCGH.  She graduated from Simmons College in Boston and is a member of American Association of Nurse Practitioners, Maryland Nurses Association, International Association of Forensic Nurses, and Sigma Theta Tau International Nursing Honor Society.   

Courtney Phillip


Chief of Operations

Courtney Phillip is a Board-Certified Family Nurse Practitioner. She originally attended Georgetown University School of Nursing and Health Studies, in Washington, DC where she received a Bachelor of Science Degree in Nursing in 2000. While working as an emergency department nurse for the last 19 years, she recently completed her Master of Science in Nursing, receiving a degree as a Family Nurse Practitioner.  She has worked primarily in emergency department settings, beginning her emergency department nursing career at George Washington University Hospital. While working full-time as an emergency department nurse for the tenure of her care, Courtney has also served as an emergency department nurse manager, hospital administrator and expert witness for several law firms.
Courtney is an active member of several professional organizations including the American College of Nurse Practitioners; Sigma Theta Tau, the International Honor Society of Nursing; Emergency Nursing Association; American Nursing Association and Maryland Nursing Association, Maryland Association of Nurse Practitioners, District of Columbia Association of Nurse Practitioners, AmericanAssociation of Nurse Practitioners and Maryland Notary Association.

Ruby L. Asaram

Practice Manager

Ruby L. Asaram started her professional journey as an Industrial Engineering and a Healthcare Professional in Clinical Operations.  She has about 20years of experience in a leadership role with her credentials in Computer Science, Industrial Engineering, and Operations Management.
Ruby is from NYC. She started her professional journey from New York City to Upstate New York, to New Jersey to Philadelphia, PA, and now in Maryland.  She is a former IBM lead Engineer who was leading 650 techs and operators in 39 departments. Also, experienced as Database, System, Technology Logistics Analyst, and Auditor.  
As a medical professional, she has been Managing Physician's practices, Hospital Trauma/ER In-patient/Out-patient, admitting scheduling, bed capacity, financial counselors, Registration, Trauma/ER/Medical offices/Hospital Billing, and health insurance claims.
Ruby worked with veterans at QTC management, a Leidos company, as a Clinical Operations Supervisor. Ruby's experience with QTC will make things better and flawless for our veterans from both ends. Also, it will make Premier health Express Urgent Care and QTC partnership better for our veterans. 

Angela McCullough


Angie McCullough is a Board-certified family nurse practitioner with 10 years of RN experience. She initially obtained her ADN from Carroll Community College, while there she served as the secretary for the Maryland Association of Nursing Students and National Association of Nursing Students. She completed her BSN with University of Maryland, Baltimore School of Nursing and most recently her MSN at Walden University where she was a member of the National Society of Leadership and Success, as well as Sigma Theta Tau International Honor Society of Nursing.
She started her nursing career in the emergency department at Northwest Hospital in Randallstown, MD and after two years she moved to the University of Maryland Medical Center in downtown Baltimore where she worked bedside as an RN and served as a charge nurse, new graduate nurse and student nurse preceptor in the adult emergency department, surgical intensive care unit, and peri/post-operative services. Angie is also a certified barre instructor with Athletics and Fitness Association of America. She currently lives in Sykesville, MD with her husband Ben of 7 years, their 4 ½ year old son, 12-year-old Pitbull Gibbs and 4 chickens. Angie is passionate about women’s health, community outreach, mental health, fitness, wine, and pizza. 

Shant Doukmajian

Oxon Hill Site lead

Shant is a native Marylander who obtained his degree as an X-Ray Technician/Medical Assistant, from Brightwood College, California.  Proficient as a medical assistant in adults and pediatrics.  Truly passionate about making patients feel comfortable during x-ray procedures and provides compassionate care.  In his spare time, Shant enjoys cooking, swimming and traveling. 

Dr. Tanshanicka Helem

Nurse Practicioner

Dr. Tanshanicka Helem earned her BSN from Howard University, Washington DC and was a critical care nurse for 22 years. Dr.Helem then went on to obtain her Masters of Science Nursing in education because of her love for teaching and precepting new graduate nurses. She earned her Doctor of Nursing practice as Family Nurse Practitioner from George Mason University.   
Dr. Helem has a passion for Women’s Health and is excited about serving the Prince George’s County community. She is also a mentor for women of color in underserved communities who desire to pursue an education in Nursing .  
Dr. Helem is excited about being appointed co-director of Southern District of Maryland and hopes to increase the presence of Nurse Practitioners in Charles, St. Mary’s, and Calvert counties. 

Amber Mullins

Veteran Affairs Coordinator

Amber is a Medical Scribe and Quality Assurance Representative for Premier Health Express Urgent Care QTC program. Amber has a sincere passion for our Veterans and ensuring they receive quality and the upmost care. Amber served in the United States Army prior to obtaining her bachelor’s degree in Criminal Justice with a minor in Human Services. She also attended Montgomery College for American Sign Language. She has an extensive background in logistics and Quality Assurance which she has obtained while managing Inventory Control for the surgical departments during her time at Holy Cross Health and the Washington, D.C. VA Medical Center. In her spare time, she enjoys making custom furniture and ready. 

Mara Monroe

Clinical Care Coordinator

Mara is a dog mom to 10-year-old Pixie and a fiancée to Jason; she enjoys loud music, reading, and spending time with friends and family. Mara is a graduate of Howard Community College's Licensed Practical Nursing program; with a strong background in hospice, home health, oncology, and intimate experience in caring for holocaust survivors.  Mara strongly believes in a holistic approach to providing patient care. Having grown up in a military family, Mara truly understands the one mission, one team mentality that is at the heart of Premier Health Express. 

Gladys Ngatchou Happi

FNP-BC, CRNP, CNN. Nurse Practitioner

Gladys completed her undergraduate degree at the University of Maryland, school of nursing in December 1999. For the past 21 years, Gladys worked in several specialty ICUs, trauma, PACU, transplant, dialysis, wound care and research mainly at Johns Hopkins Hospital in Baltimore and University of Maryland Medical Center as staff member as well as other hospitals in the Baltimore area as an agency staff. Gladys earned a MSN in leadership and Management from Walden University in 2014 then took on several leadership roles as a government contractor with CMS and CDC and with University of Maryland Medical Systems.  In December 2020, she completed her post Master FNP degree at Bradley University.  Gladys is the current President of the American Nephrology Nurses Association (chapter 101) and also the President of the Cameroonian American Nurses Association ( She has been volunteering with several non-profit groups since 2005 to serve the less fortunate groups in health care in the US as well as abroad. Gladys belongs to several professional organizations including AONL, ANA, CAMNA-USA, AANP and ANNA.  Gladys served as a mentor/preceptor to many  registered nurses and still teaches clinical part time to nursing students at Stevenson University. Gladys enjoys traveling the world, dancing and spending time with family and friends.