Skip to main content

Margaret Ngumi, PMHNP

Staff Nurse Practitioner
Languages
English
SPECIALTIES
Anxiety
Bipolar Disorder
Depression
Obsessive-compulsive disorder (OCD)
PTSD/Trauma
Medication Management

Education and training

  • Valdosta State University Psyc. Mental Health Nurse Practitioner

Get to know

Margaret Ngumi, PMHNP

Margaret Ngumi, MSN, APRN, FNP-C, PMHNP-BC, is a dual board-certified Psychiatric Mental Health and Family Nurse Practitioner with over 20 years of experience in healthcare. She began her career as a Family Nurse Practitioner and later pursued a post-master’s certification in psychiatry to address the growing need for accessible mental health services. Margaret has extensive experience in both inpatient and outpatient settings, treating conditions such as depression, anxiety, PTSD, mood disorders, and substance use disorders.

She takes a collaborative, patient-centered approach to care, creating a safe and supportive environment where individuals feel heard and empowered. With a strong emphasis on holistic care, Margaret considers all aspects of a patient’s well-being—including lifestyle, relationships, and overall health. Whether through medication management, therapy, or lifestyle modifications, she is committed to helping patients achieve meaningful and lasting improvements in their mental health.

Margaret begins with a comprehensive psychiatric evaluation to understand each patient’s history, concerns, and goals. She then works closely with them to develop a personalized care plan that may include medication, therapy, and evidence-based lifestyle interventions. She prioritizes open communication, patient education, and ongoing collaboration to ensure treatment remains effective and evolves with each patient’s needs. Through her compassionate and evidence-based approach, Margaret is dedicated to helping individuals find balance and improve their overall quality of life.

Get matched with a clinician like this one

Ready to book your first appointment? Take our 10-minute assessment. We’ll match you with a clinician who meets your needs, has availability, and takes your insurance.

Get started
More Clinicians

Karelis Sierra-Cintron, MD

Staff Psychiatrist

Dr. Sierra-Cintron is board-certified in adult psychiatry by the American Board of Psychiatry and Neurology and has been in practice for 12 years. Dr. Sierra-Cintron focuses her practice on medication management. She also engages in supportive therapy in a comprehensive way, focusing on the patient as a whole and not just the symptoms. Dr. Sierra-Cintron has a broad understanding of vitamin support as an adjunctive treatment to traditional medication. She has broadened her understanding of second-line treatment, having been certified in Electroconvulsive Therapy (ECT), conducting clinics in Clozapine and Long-Acting Antipsychotics (LOA), and even conducting assessments for patients interested in weight loss surgery. Dr. Sierra-Cintron has a comprehensive approach to treatment, and might consider the addition of therapy, either by referral or collaborating with an existing therapist for a more rounded approach and improved outcome. Dr. Sierra-Cintron received her medical degree from the Universidad Central del Caribe located in Bayamon, Puerto Rico. Upon graduation, she relocated to Philadelphia, where she started her residency program at Einstein Medical Center. After completing her training, she worked for 8 years in a community mental health clinic, treating an underserved population in all modalities of psychiatric care. In her 12-year career, Dr. Sierra-Cintron has treated both adult males and females, including seniors. This has led to varied and wide-ranging diagnoses during the length of her career. After leaving the community clinic setting, she started working for an outpatient clinic in a suburb of Philadelphia. Dr. Sierra-Cintron's current areas of focus are adults with Mood Disorders, Anxiety Co-Occurring Substance disorders, as well as patients with varied concomitant medical problems.‍

Tony Tu, MD

Staff Psychiatrist

Dr. Tony Tu is a board certified adult psychiatrist who emphasizes patient education and a psychodynamic approach to outpatient psychiatry. His passion for empowering patients with knowledge stems from his academic experience in psychiatry residency training. Dr. Tu's practice focuses on blending medication management together with psychotherapy. He also prioritizes collaboration with your therapist and encourages working together as a team. Dr. Tu is a graduate of the University of Chicago Pritzker School of Medicine where he completed an MD and PhD combined program which helped develop his "doctors as teachers” style of practice. Dr. Tu completed his psychiatry residency training at Loyola University Medical Center in Illinois. Dr. Tu served as an Associate Program Director of Loyola's Psychiatry residency training program for two years, and now maintains an Affiliate Assistant Professor of Psychiatry role with Loyola. He continues to contribute to residency training, as well as mentorship of medical students and psychology externs. Over the years, Dr. Tu has received several awards that demonstrate his affinity for teaching, including the Educator of the Year Award in 2022 from the Loyola Psychiatry Residency Program. Areas of specialization include psychopharmacology, patient-centered medicine, and combination treatment of psychiatry and psychotherapy. Dr. Tu understands that medications are not the end-all-be-all of treatment, but just the beginning. For trauma and acute stress, he understands that the journey starts at the tip of the iceberg, with much to explore as you feel more ready.

Rania Elkhatib, MD

Staff Psychiatrist

Dr. Rania Elkhatib is a board-certified general psychiatrist with extensive experience in clinical care, teaching, and research. She earned her medical degree from the University of Texas Medical Branch in Galveston and completed her psychiatry residency at UTHealth Science Center in Houston, where she later served as an Assistant Clinical Professor. During that appointment, Dr. Elkhatib was heavily involved in medical education and has developed courses in cultural psychiatry and psychiatry boot camps for medical students.


Dr. Elkhatib specializes in treating a wide range of psychiatric conditions, including Major Depressive Disorder, Anxiety Disorders, Bipolar Disorder, OCD, ADHD, and PTSD. Dr. Elkhatib focuses on evidence-based medication management but will also incorporate supportive therapy and cognitive-behavioral techniques to optimize treatment management and patient’s wellness. She is fluent in Arabic and English and has a strong interest in working with diverse patient populations.


Dr. Elkhatib has a holistic approach with focus on medication management while incorporating supportive therapy and cognitive-behavioral techniques to optimize patient wellness.

Surinderpal Kahlon, MD

Staff Psychiatrist

Dr. Kahlon is an experienced Psychiatrist who spent the last 24 years of his career working in Veterans Affairs, where he was able to treat a wide variety of patients. Dr. Kahlon provides medication management along with supportive therapy. In some cases Dr. Kahlon may refer you to a counselor or therapist for further care and collaboration. He has experience treating a wide range of conditions, including major depressive disorder, panic disorder, generalized anxiety disorder, obsessive-compulsive disorder, and PTSD. Dr. Kahlon utilizes a well-rounded approach to treat the whole person, through medication, active listening, and recommending talk-centered counseling programs. Dr. Kahlon was trained in the VA system associated with Chicago Medical School (Finch University), which is located in North Chicago, Illinois. At the conclusion of his training, he was hired at the VA in Danville, Illinois until 2021. He also had a part-time private practice, which enhanced his experience in adult psychiatry. Dr. Kahlon graduated from a prestigious medical school that has consistently held a high position (4th) among the top 100 medical schools in the world.‍

Marjorie Lavin, MD

Staff Psychiatrist

For the past 20 years, Dr. Lavin has worked at the University of Denver Health and Counseling Center, where she has treated undergraduate and graduate students. She also worked at a training clinic for students pursuing their PsyD degree. She has supervised and taught psychiatry residents. She taught a psychopharmacology and differential diagnosis course to psychology trainees. Dr. Lavin has a strong interest in functional medicine and alternative therapies. Dr. Lavin has been in practice for 35 years. She is board certified in adult psychiatry. Dr. Lavin focuses on a comprehensive medical assessment, medication management, psychoeducation, wellness, and alternative therapies. She enjoys treating young adults. Dr. Lavin did her undergraduate work at the University of Rochester. She earned her MD from Cornell University Medical College in New York City. Her psychiatry residency was at the University of Boston Medical Center. After training, Dr. Lavin held administrative and clinical positions at Kaiser Permanente in Denver, CO and at the Harvard Community Health Plan in Braintree, Massachusetts. She has written clinical triaging guidelines and patient information pamphlets.‍

Carolyn Benson, MD

Staff Psychiatrist

Dr. Carolyn Benson has 21 years of experience in treating adults, adolescents, and children. After graduating medical school at Brody School of Medicine in Greenville, North Carolina, she moved to Rochester, NY to complete her residency and fellowship at University of Rochester School of Medicine. Her focus over the last ten years has been on working with young adults, children/adolescents, and their families. Her expertise covers a wide array of therapeutic modalities and mental health diagnoses. The primary focus of her sessions is to provide medication management with education on treatment options. She will provide therapy models that are appropriate within that 20�30 minute medication session. If longer therapy time frames are indicated, she will discuss the need to add a therapist to your treatment team to achieve optimal care. Her successful treatment outcomes are based on experience, staying current on psychiatric treatments, and having open communication with patients and families of children/adolescents so they can choose the most effective treatments. Prior to medical school, she worked in both marine and biochemical research venues and was coauthor in several research papers. She has an avid interest in the emerging field of neuroscience and frequently gives talks to colleagues and students on current research topics. Her primary objectives in her work are to help patients achieve success in both treatment and life goals and to always take time to truly listen to her patients.

Ready to get matched?

Start our short assessment
Specialties
Anxiety
Bipolar Disorder
Depression
Obsessive-compulsive disorder (OCD)
PTSD/Trauma
Medication Management
States
Washington
Arizona
Oregon
Languages
English
Takes insurance
Virtual visits
years experience