Welcome To Our Clinic
Diamond Lake Clinic provides outpatient services specializing in Psychiatry, Mental Health and Behavioral Health needs including therapy, medication management, and office based opioid treatment.
We now have 2 locations:
- 5939 Portland Ave. S, Minneapolis, MN. (Get Directions)
- 1497 White Bear Ave N, St. Paul, MN (Get Directions)
Our practitioners are board certified, knowledgeable, and compassionate. We use world class practices to ensure you receive the best service available.
Distinguished by the skill and compassion of our care providers and staff, we provide services of the highest quality to our community, and superior levels of patient satisfaction. Our outstanding and dedicated team is earnestly committed to serving all patients 6 years and older.
PSYCHIATRY, MEDICATION MANAGEMENT
Chukwuemeka Alexander Anyake, MD, MPH
Dr. Emeka Anyake is the Medical Director of Diamond Lake Clinic in Minneapolis, MN. He is board certified by the American Board of Psychiatry and Neurology (ABPN). In addition, he is a Fellow of the American Psychiatric Association (APA), and member of the Minnesota Psychiatric Society.
Dr. Anyake earned a Master’s degree in Public Health, with concentration in Health Care Organization and Policy (HCOP), from the University of Alabama at Birmingham (UAB). He is a graduate of the University of Nigeria Medical School, and completed his Residency Training in Psychiatry at Hennepin County Medical Center (HCMC) in Minneapolis, MN.
Dr. Anyake worked as an Emergency Room and Inpatient Psychiatrist at Twin Cities Hospitals and was an Adjunct Assistant Professor of Psychiatry at the University of Minnesota.
He was the Medical Director of Acute Psychiatric Service at Hennepin County Medical Center from 2012 to 2015.
Dr. Anyake enjoys educating medical students and resident physicians, and specializes in the diagnosis and management of adult mental health and substance use disorders.
PSYCHIATRY, MEDICATION MANAGEMENT
Noussaiba Ayour, MPAS, PA-C
Noussaiba Ayour, MPAS, PA-C, is a board-certified physician associate at Diamond Lake Clinic. She has worked in various health care settings including family medicine and urgent care with patients’ of all age groups.
Noussaiba graduated from the University of Minnesota-Twin Cities with a Bachelor of Arts in Biology, Society, and Environment and a minor in Public Health in May 2017. After graduating, she spent 2-3 years gaining direct patient care experience working as an ER medical scribe, direct care professional, as well as clinical research. Noussaiba then earned her Master of Science in Physician Assistant Studies from Carroll University in May 2022.
Noussaiba is passionate about connecting with her patients and using a holistic approach to provide care for multiple mental health conditions. She focuses on creating personalized treatment plans using evidence-based medicine to help improve patient outcomes. Noussaiba focuses primarily in the treatment of generalized anxiety disorder, major depressive disorder, attention-deficit disorder (ADHD/ADD), bipolar disorder, and cognitive disorders. Noussaiba serves patients 10 years old+ and enjoys working with youth.
Outside of medicine, Noussaiba enjoys spending time with her two cats and watching suspenseful TV shows/movies. Noussaiba is a strong advocate and believer that improving physical, spiritual, and environmental wellness is a driving force to improving mental health.
PSYCHIATRY, MEDICATION MANAGEMENT
Jeremy Lee Gwilt, PA-C
Jeremy Gwilt, PA-C is a board-certified Physician Assistant specializing in outpatient psychiatry and medication management at Diamond Lake Clinic. He earned his Master’s in Physician Assistant Studies from Northwestern College in Orange City, Iowa, in 2022 and holds a Bachelor’s degree in Social Work from Winona State University.
Jeremy brings extensive experience in mental health and chemical dependency, having served in roles such as resident advocate, residential treatment mental health professional, and inpatient mental health social worker. He specializes in diagnosing and managing adult mental health conditions, including anxiety, ADHD, bipolar disorder, and depression. He is committed to providing evidence-based care tailored to each patient’s unique needs, ensuring a personalized and compassionate approach that fosters trust, promotes well-being, and supports optimal mental health outcomes.
Outside of work, Jeremy enjoys spending time with his daughters, gardening, cooking, exploring the outdoors, physical fitness, and hands-on projects like carpentry and automotive work.
PSYCHIATRY, MEDICATION MANAGEMENT
Ebere Ejike-Ilechukwu, MSN, APRN, PMHNP-BC
Ebere Ejike-Ilechukwu is a board-certified psychiatric mental health nurse practitioner (PMHNP) at Diamond Lake Clinic. She has over 12 years of experience working in various health care settings.
She started her educational pursuits at North Hennepin Community College and earned her Bachelor of Science in Nursing from Winona State University in May 2013. She then earned her Master of Science in Nursing with PMHNP certification from Walden State University in November 2019.
Ebere offers holistic, compassionate care for a range of mental health conditions, including bipolar disorder, major depressive disorder, generalized anxiety disorder, attention-deficit hyperactivity disorder (ADHD), post-traumatic stress disorder (PTSD), drug-induced mental illness, and much more. She conducts thorough psychiatric assessments and orchestrates personalized, evidence-based treatment plans based on each patient’s individual needs. Her mission is to ensure that you receive the care you need to enhance your physical and mental health, improving your overall function and sense of well-being.
PSYCHIATRY, MEDICATION MANAGEMENT
Rachel Sumo AGNP, PMHNP
Rachel Sumo is a board-certified Adult and Gerontology and Nurse Practitioner (AGNP) and Psychiatric Mental Health Nurse Practitioner (PMHNP). She obtained her AGNP from St. Catherine University and PMHNP from Walden University.
Rachel has over 20 years of healthcare experience in various roles. She has extensive training in managing primary care and mental illness across the lifespan. She advocates for her patients, educates them about their illnesses, and supports them in achieving their best health through evidence-based and patient-centered care.
Rachel volunteers in her community by providing health education and directing people to resources to maximize their health.
Rachel enjoys spending time with her family, traveling, volunteering at her local church and community, and providing mentorship for students and new providers.
PSYCHIATRY, MEDICATION MANAGEMENT
Mirabel Mambo MSN, APRN, PMHNP-BC
Mirabel Mambo is a board certified psychiatric nurse practitioner (PHNP) with the American Nurse Credentialing Center (ANNC) and a member with the Minnesota Board of Nurses (MNA).
Mirabel earned a Master of Science in Nursing with Psychiatric Mental Nurse Practitioner (PHNP) Certification from Walden University in February 2022. She earned a Bachelor of Science in Nursing from St Paul Metropolitan State University in May 2018. She started her nursing education at the Training School for Health Personnel Cycle B-1 and graduated with her Registered Nurse Diploma in June 2003.
Mirabel has worked as Psychiatric Mental Health Nurse Practitioner (PHNP) at Eir Med in Hibbing Minnesota. She is working as a Registered Nurse in an acute inpatient psychiatric mental health unit in Centracare Montello (2017-2024). She has worked in the past as a Registered Nurse at North Ridge Health and Rehab (2015-2019), Senior Providence Place (2013-2018), Cerenity Senior Care (2013-2018), Santa District Hospital (2003-2008).
Mirabel is caring, empathetic, and compassionate while caring for her patients. She is specialized in performing comprehensive psychiatric assessment. diagnosing. and providing treatment to individuals suffering from mental health disorders such as major depressive disorders, anxiety disorders, attention deficit hyperactivity disorder, psychosis, and drug induced disorders.
Mirabel enjoys travelling with her beloved husband and lovely kids. She also enjoys music, cooking, and shopping for the family.
PSYCHIATRY, MEDICATION MANAGEMENT
Esther Njingu, PMHNP
Esther Njingu, is a board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP). Her background of more than 15 years of experience in medicine offers her a wealth of first-hand experiences, giving her an unmatched skillset in both understanding medical systems and providing mental health care. Professionally, she has a history of diverse roles in numerous care settings, from working as a Registered Nurse in memory care facilities in the twin cities to eventually working as a registered nurse in a county hospital for more than 10 years. Throughout these years of experience, she faced numerous situations where understanding and recognizing a patient’s mental health was essential. In these care situations, she developed an indomitable passion for mental health, ultimately leading her to pursue a Master’s Degree in Nursing at Walden University where she earned her Psychiatric Mental Health Nurse Practitioner in 2023.
In addition to her practical experience, Esther has a unique ability to connect with individuals, a capacity to understand them, and the empathy to meet them where they are. She has the pleasure of working alongside many skilled and experienced clinicians and is happy to collaborate and coordinate care with them when appropriate to the client’s needs.
Esther offers holistic, compassionate care for a range of mental health conditions, including bipolar disorder, major depressive disorder, generalized anxiety disorder, attention-deficit hyperactivity disorder (ADHD), post-traumatic stress disorder (PTSD), drug-induced mental illness, and much more. She conducts thorough psychiatric assessments and orchestrates personalized, evidence-based treatment plans based on each patient’s individual needs. Her mission is to ensure that you receive the care you need to enhance your physical and mental health, improving your overall function and sense of well-being.
While mental health has always been an essential piece of health care, Esther doesn’t believe it has always been treated as such; she hopes to drive that change. She dedicates herself to helping others optimize their abilities to function and enjoy their life. Accordingly, she is a proponent of continuing education and frequently attends conferences, peer gatherings, and other educational opportunities to help her grow as a provider.
PSYCHIATRY, MEDICATION MANAGEMENT
Abena Prempeh, PMHNP
Abena Prempeh is a board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP). She has gained much experience working in various healthcare settings for over 13 years. Abena Prempeh earned her Bachelor of Science in Nursing from Western Governors University. Eager to specialize in her studies, she pursued advanced education and earned a Psychiatric Mental Health Nurse Practitioner degree from Walden University. Abena is committed to providing quality care to patients for better outcomes.
Abena Prempeh is a dedicated and compassionate Psychiatric Mental Health Nurse Practitioner who is deeply committed to supporting, advocating, and improving the lives of individuals struggling with mental illness. Beyond clinical practice, Abena Prempeh is committed to professional development and upholding the highest standards of care.
Andrea Janney, MS
Education: Gustavus Adolphus College – BS, Rocky Mountain College -MS
Clinical Interests: All types of psychiatric care for adults. Particular areas of interest include depression, anxiety, substance use disorders, and insomnia.
Clinical Approach: I believe establishing a strong partnership with patients improves their outcomes and allows for greater control over one’s circumstances. I like to think about medicine in terms of getting healthier instead of getting rid of sickness. Medication and psychiatric management is best supported by treating from a “whole body” perspective, including patients’ diets, sleep habits, hobbies and restorative practices (such as meditation and spirituality).
Hobbies: Enjoy reading, spending time with friends and family, and participating in outdoor activities including snowboarding, biking, and backpacking.
THERAPY, EDUCATION, COUNSELING
Jennifer Brummer, LICSW
Jennifer Brummer (Jenny) is a Licensed Independent Clinical Social Worker who has worked as a Social Worker in Minnesota since 1994. Jenny has a passion for working with individuals to reduce the impact of social pressures and whose lives have been negatively impacted by poor mental health and/or chemical health issues. Jenny completed her undergraduate degree at the The College of St. Benedict in 1993, receiving a bachelor’s degree in social work. She later went on to receive her Clinical Masters in Social Work from St. Catherine University in 2014.
Jenny started her career working with individuals with developmental disabilities and special needs, owning and operating a small social service agency serving both adults and children through home and community-based services. Jenny’s passion for social justice inspired her to return to school to fight for the rights and lives of those struggling with these and other social challenges. During graduate school, Jenny was selected to intern at the VAMC (Veteran’s Affair’s Medical Center) in the outpatient mental health clinic. This experience led to working at 3 major metro hospitals and trauma centers, providing an extremely comprehensive level of training and expertise.
Jenny specializes in the treatment of childhood abuse and trauma, anxiety disorders, depression, substance abuse and dependency, psychotic disorders, as well as working with clients living with cognitive disorders or intellectual disabilities.
In her free time, Jenny enjoys traveling, listening to live music, spending time outdoors, being with her family and binge-watching true crime documentaries. Jenny believes strongly in the mind-body connection that supports both physical and mental wellness, as well as the power of Mindfulness practices.
