Our Team

Stephen Laiken, MD



Dr. Laiken received his degree of Doctor of Medicine at the University of Brussels in Belgium.  He completed his residency in Internal Medicine at Greater Baltimore Medical Center in Towson, Maryland.  He is board eligible in Internal Medicine.  He continued his career with a private practice in Towson, as well as Acute Care Medicine.  During this time he furthered his training in sports medicine with an emphasis on nutrition, biomechanics and exercise physiology.  He was an event physician and medical director of equestrian and Tae Kwon Do (Martial Arts) competitions.  Dr. Laiken has been certified in Advanced Life Support and maintains current basic life support certification.  He received a certification in Acute Trauma Life Support at the University of Maryland Shock Trauma.  He then practiced full time at the emergency department as Carroll Hospital Center where he has also worked as a hospitalist.  Dr. Laiken's career continues to be active in industrial medicine with screening and monitoring workers exposure, as well as caring for acute and chronically injured workers.  Dr. Laiken started his practice in outpatient primary care medicine in 1988 in Hampstead, Maryland, Carroll County.  

Dr. Laiken's formal hospital affiliation includes: Greater Baltimore Medical Center, with informal referral base throughout the Baltimore area, Carroll County and Southern Pennsylvania.  Dr. Laiken is a member of Med Chi (The Maryland State Medical Association), The American Medical Association, and The American College of Physicians.

Amy Yankolonis, CRNP

amy yankolonis crnp


Amy is native of Hampstead, Maryland.  She is excited to be bringing her experience and education back to make a difference in her hometown. 

Masters in Nursing from University of Maryland

Bachelors degree from Villa Julie College (currently Stevenson University)

Completes yearly continuing education requirements and is always interested in keeping up with the current medical practice.

Member of the medical staff of St. Joseph Medical Center.

Experience as a clinical professor in the nursing program of Towson University

Nurse Practitioner in the Emergency department at St. Joseph Medical Center

Experience on the medical admissions team at Sheppard Enoch Pratt Hospital

Current DEA and CDS licenses for the prescription of medicine.

Completed training in Botox, Dysport, Xeomin and Dermal Filler injections from Advanced Medical Educators Training.

Mrs. Yankolonis holds membership in the following organizations:  The Academy of Nurse Practitoners, Sigma Theta Tau-The National Honor Society of Nursing, Villa Julie College - Union Memorial Hospital Alumni Association, Sparks-Hereford Alumni Association.  She also holds current Advanced Cardiac Life Support certification, as well as current American Heart Association Healthcare Providers CPR certification.

Mrs. Yankolonis prides herself on providing compassionate and competent care to people of all ages.  She has a special interest in the prevention of disease through healthy living, weight loss, and routine screening.

Susan Harris, CRNP

susan harris crnp

 Susan joined our office as a Family Practice Nurse Practitoner.  A rural Harford County native, Susan is a North Harford High graduate. She went on to complete her Bachelors of Science in Nursing from Villa Julie College (Stevenson University). From there she started work as a nurse at one of the nation’s highest acuity intensive care units, the Surgical ICU at University of Maryland Medical Center.

Susan decided that there was more she could do to save her patients; by intervening in the primary care setting before they reached the intensive care unit. While completing her graduate studies at University of Maryland as a Family Nurse Practitioner she continued working at UMMC as a supplemental staff ICU nurse. She started each day in a new unit and adapted to the needs of the patients and staff she was assigned to her care. Her experience and knowledge expanded with rotations in the Trauma Recitation Unit, Neuro Trauma ICU, Trauma PACU, UMMC PACU, Cardiac Surgery ICU and stepdown, Cardiac ICU, Medical ICU, Neuro ICU and UMMC Emergency Room.  As she neared the end of her graduate studies she worked with the inpatient Pain Management Service.

Susan also has a deep passion for education. She completed a Post Masters Teaching Certificate in Nursing and Health Professions to enable her to mentor the next generation of nurses. She has taught clinical rotations at Towson University as well as didactic and simulation lab at Harford Community College. 

She holds affiliations with The Academy of Nurse Practitioners, Sigma Theta Tau-The National Honor Society of Nursing, Villa Julie College - Union Memorial Hospital Alumni Association.  She holds current Advanced Cardiac Life Support certification, as well as current American Heart Association Healthcare Providers CPR certification.  She is registered as a National Certified Medical Examiner for DOT examinations. 

Susan joins us after years of patient care at another rural family practice. She is excited to balance her family and professional life here in Hampstead.  She and her husband have two young children and she enjoys caring for patients in the community in which she lives.  Susan has a personal connection with diabetes and enjoys helping her diabetic patients conquer obstacles and educate themselves on healthier lifestyles.  She also has a passion for the next generation, hoping to use the advances in medical science and information technology as well as the hard work of previous generations to make her youngest patients healthy and happy in ways never known to those before them.   

Amber Johnson, CRNP

amber johnson crnp

 Amber was born and raised in Hampstead.  She is looking forward to bringing her medical knowledge back to the community in which she and her family live.  Amber graduated with her bachelors degree in nursing from York College in Pennsylvania.  She then went on to complete a masters degree in nursing from University of Maryland.  She is certified in Family practice.  She keeps up to date on current medical practice by completing all required continuing education.  Amber also enjoys teaching.

She enjoys treating people of all ages.  She has special interest in helping with weight loss and helping people to stay healthy through routine screening and healthy living.

Amber is well versed in treating patients with many acute and chronic conditions including hypertension, diabetes, and high cholesterol and more.  She can’t wait to start helping her community to live healthier. 

Toni Daniels, Office Manager


Dana H., Certified Medical Assistant


Bethaney Ayres, Medical Assistant/Front Office


Jessica Beatty, Medical Assistant/Front Office


The Team


The Team


The Team


Manchester Valley Business Expo


The office participated in the Manchester Valley Business Expo on 3-16-19