Regina Greco is a Nurse Practitioner in Baltimore, Maryland. Ms. Greco has been practicing medicine for over 17 years is highly rated in 1 condition, according to our data. Her top area of expertise is Systemic Sclerosis (SSc).

Nurse practitioner Shannon Langmead specializes in neurofibromatosis and is the clinic coordinator of the Johns Hopkins Comprehensive Neurofibromatosis (NF) Center. She evaluates and manages patients with NF1, NF2 and Schwannomatosis. Her special interests include pain management and developing social support networks for patients who have NF. Shannon earned bachelor’s degrees in Spanish and nursing from Saint Francis University in Pennsylvania and Villa Julie College in Maryland, and completed her master’s degree in nursing at The Johns Hopkins University School of Nursing. She has worked as a bedside nurse in neurology and neurosurgery at The Johns Hopkins Hospital and as a part-time clinical faculty member for The Johns Hopkins University School of Nursing. Ms. Langmead is highly rated in 3 conditions, according to our data. Her top areas of expertise are Neurofibromatosis, RASopathies, Neurofibromatosis Type 1 (NF1), and Legius Syndrome.

Theresa Rugalla Booker is a nurse practitioner in Baltimore, Maryland. She specializes in managing patients diagnosed with heart failure and cardiomyopathy. Ms. Booker is highly rated in 1 condition, according to our data. Her top area of expertise is Heart Failure with Preserved Ejection Fraction (HFpEF).

Valerie Peterson is a Nurse Practitioner in Baltimore, Maryland. Ms. Peterson is highly rated in 1 condition, according to our data. Her top area of expertise is ALK-Positive Non-Small Cell Lung Cancer.

Jheneale Grandison is a Nurse Practitioner in Baltimore, Maryland. Ms. Grandison is highly rated in 1 condition, according to our data. Her top area of expertise is Systemic Sclerosis (SSc).

Cathy Stanfield is a Nurse Practitioner specialist and an Addiction Medicine provider in Dundalk, Maryland. Ms. Stanfield is highly rated in 1 condition, according to our data. Her top areas of expertise are Opioid Use Disorder and Opioid Induced Constipation.

Brian Sharkey is a nurse practitioner who specializes in the care of older adults at the Beacham Center for Geriatric Medicine. He focuses on polypharmacy (patients’ use of multiple prescription drugs), appropriate risk evaluations for surgeries, how patients can live and maintain their independence, and support of family members and caregivers to achieve patients’ goals. Sharkey has extensive experience evaluating and treating older adults. Outside of Johns Hopkins, he has worked in nursing homes, a continuing care retirement community and a private practice setting. At Johns Hopkins Bayview Medical Center, he has worked for an inpatient geriatric consultation service and on a medical behavioral unit. Sharkey also supports instilling principles of geriatric care in nurse practitioner students who are training at Johns Hopkins. His top areas of expertise are Heart Failure with Preserved Ejection Fraction (HFpEF) and Emphysema.

Valerie Owen is a Nurse Practitioner in Baltimore, Maryland. Ms. Owen has been practicing medicine for over 10 years. Her top area of expertise is Neurogenic Bowel.

Michelle Joffe is a Nurse Practitioner in Baltimore, Maryland. Her top areas of expertise are Emphysema, Lung Nodules, and Seasonal Affective Disorder (SAD).

N.P. Fetting is interested in the impact of mental health on chronic disease management, and the complex interplay of psychosocial stressors and chronic illness. She enjoys running, reading and time with her family. Her top area of expertise is Heart Failure with Preserved Ejection Fraction (HFpEF).

Sarah Riley, CRNP is a nurse practitioner in Baltimore, Maryland. She specializes in managing patients diagnosed with heart failure. Her expertise includes managing patients diagnosed with heart failure, cardiac amyloidosis and left ventricular assist device (LVAD). Her research includes managing and improving outcomes for patients diagnosed with heart failure. Research SummarySarah's research consists of managing and improving outcomes for patients diagnosed with heart failure, cardiac amyloidosis and implanted left ventricular assist devices (LVAD). Selected Publications Vaishnav, J., Hubbard, A., Chasler, J., Lepley, D., Cuomo, K., Riley, S., Menzel, K., Fajardo, J., Sharma, K., Judge, D., Russell, S., & Gilotra, N. (2020). Management of Heart Failure in Cardiac Amyloidosis Using An Ambulatory Diuresis Clinic: An Analysis of Safety and Health Care Utilization. Journal of Cardiac Failure, 26 (10): S52. https://doi.org/10.1016/j.cardfail.2020.09.153 Hahn, V. S., Yanek, L. R., Vaishnav, J., Ying, W., Vaidya, D., Lee, Y. Z. J., Riley, S. J., Subramanya, V., Brown, E. E., Hopkins, C. D., Ononogbu, S., Perzel Mandell, K., Halushka, M. K., Steenbergen, C., Rosenberg, A. Z., Tedford, R. J., Judge, D. P., Shah, S. J., Russell, S. D., ... Sharma, K. (2020). Endomyocardial Biopsy Characterization of Heart Failure With Preserved Ejection Fraction and Prevalence of Cardiac Amyloidosis. JACC: Heart Failure, 8(9), 712-724. https://doi.org/10.1016/j.jchf.2020.04.007 Umapathi, P., Cuomo, K., Riley, S., Hubbard, A., Menzel, K., Sauer, E., Gilotra, N. (2020). Transforming Ambulatory Heart Failure Care in the COVID-19 Era: Initial Experience From a Heart Failure Disease Management Clinic. Journal of Cardiac Failure, 26 (7), 637-638. https://dx.doi.org/10.1016%2Fj.cardfail.2020.06.003 Cummings, A., Fajardo, J., Cuomo, K., Riley, S., Chambers, J., Menzel, K., Rhodes, P., Fitts, F., Russell, S., Judge, D., & Gilotra, N. (2020). Efficacy of a Nurse Practitioner Managed Outpatient Intravenous Diuresis Clinic to Relieve Recurrent Congestion in Patients with Cardiac Amyloidosis. Heart and Lung, 49 (2) 213-214. https://doi.org/10.1016/j.hrtlng.2020.02.017 Freed, K., Cuomo, K., Hubbard, A., Riley, S., Menzel, K., Klemans, N., Fioretti, R., Aslam, M., Umapathi, P., Choi, C. W., Kilic, A., Florido, R., Sharma, K., Hsu, S., & Gilotra, N. (2019). Management of Heart Failure in Left Ventricular Assist Device (LVAD) Patients Utilizing an Outpatient Diuresis Clinic. Journal of Cardiac Failure, 25:sup8. https://doi.org/10.1016/j.cardfail.2019.07.146. Ms. Riley is highly rated in 1 condition, according to our data. Her top area of expertise is Heart Failure with Preserved Ejection Fraction (HFpEF).

Dallia Nsoesie is a Nurse Practitioner in Dundalk, Maryland. Her top area of expertise is Muscle Spasms. Ms. Nsoesie is currently accepting new patients.

Jennifer Hoffmann is a Nurse Practitioner in Baltimore, Maryland. Her top area of expertise is Nontuberculous Mycobacterial Lung Disease.

Marion James is a Nurse Practitioner in Baltimore, Maryland. Ms. James has been practicing medicine for over 10 years.

Ramsey Valenti is a Nurse Practitioner in Baltimore, Maryland. Her top areas of expertise are ALK-Positive Non-Small Cell Lung Cancer and Lung Nodules.

Casey Parker is a nurse practitioner specializing in diagnosis and management of gastrointestinal disorders and pancreatic cysts. Parker earned a Bachelor of Science degree in nursing from the College of New Jersey and a Master of Science degree in nursing from Emory University, where she also obtained a Master of Public Health degree. She completed a nurse practitioner fellowship in gastroenterology and hepatology at the Johns Hopkins University School of Medicine. She is a member of the Gastroenterology & Hepatology Advanced Practice Providers association.

Laura MacDonald, C.R.N.P., comes to Johns Hopkins Community Physicians after spending two years as an emergency department nurse during the COVID-19 pandemic. Previously, she spent 10 years in cardiac surgery, medical, surgical and cardiac ICU nursing. N.P. MacDonald graduated from Simmons University in Boston, Massachusetts with a Master’s of Science degree in Nursing. N.P. MacDonald genuinely cares about every patient interaction she has, which she believes comes from her background in nursing. She loves to teach and values making of plan of health that works and is individualized for each of her patients and their respective needs. When not working or staying on top of the latest medical news, N.P. MacDonald loves live music, travel, and spending time with her husband, two boys and her geriatric cat.

Maureen Flood is a Nurse Practitioner in Baltimore, Maryland. Her top area of expertise is Heart Failure with Preserved Ejection Fraction (HFpEF).

Katherine Braid is a Nurse Practitioner in Baltimore, Maryland. Her top area of expertise is Neurogenic Bowel.

Erin Lawrence is a Nurse Practitioner in Baltimore, Maryland. Her top area of expertise is Thrombectomy.

Michael Cooley is a General Surgeon and a Nurse Practitioner in Baltimore, Maryland. His top area of expertise is Gallbladder Disease.

Adi Lazary is a Nurse Practitioner in Baltimore, Maryland. Her top area of expertise is Hormone Replacement Therapy (HRT).

Jennifer R. Castello, MSN, CRNP, joined the Beacham Center for Geriatric Medicine in 2025. She is a highly experienced and accomplished nurse practitioner with a specialized focus in geriatrics, bringing over two decades of clinical and leadership expertise in long-term care, skilled rehabilitation, and continuing care retirement communities. She has led multidisciplinary teams in multiple roles, including Clinical Service Manager at Optum and Nurse Practitioner Team Lead at Gilchrist Elder Medical Care. Her pioneering work includes establishing new NP roles, developing educational programs, and spearheading quality improvement initiatives that have enhanced patient care. She holds a Master of Science in Nursing from the University of Maryland and is a Gerontological Nurse Practitioner. Her commitment to compassionate, patient-centered care, leadership in complex geriatric settings, and focus on disease prevention and health promotion make her a perfect fit for the Beacham Center.

Family nurse practitioner Dian Grandison specializes in the treatment of headaches. She sees pediatric patients and adult patients through the age of 30. She earned a Master of Science in nursing from Wagner College.

Nurse practitioner Andrea Kappler cares for patients who have headache disorders including but not limited to migraine, cluster, occipital neuralgia and trigeminal neuralgia. She performs occipital, temporal, and supraorbital/supratrochlear nerve blocks and botulinum toxin injections for chronic migraine. Kappler earned her undergraduate degree from the University of Michigan and a master’s degree in nursing from Spring Arbor University. She is licensed and able to conduct follow-up telemedicine appointments in Maryland, Washington, D.C., and Virginia.