LOCAL HEALTHCARE PROVIDERS
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269 providers
Availability last updated 07/01/2025
Stephen Ong, MD
Family Physician
6357 Oxon Hill Road,
Oxon Hill, MD 20745
PRIMARY & ALTERNATIVE MEDICAL CENTER
Is Truly Patient Centered.
You are the reason we are here. Our goal is to help you feel better mentally, physically and spiritually. Our primary tools are listening to you sensitively, examining you carefully and then discussing with you thoroughly, our opinions and your options. We see health care as both a science and an art. There is rarely one right answer, and one size almost never fits all. When it comes to your health we will incorporate highly accurate diagnostic laboratories and advance imaging studies with our medical expertise. We will derive diagnoses and treat appropriately as well as make a referral to our affiliated specialist. We will be attentive to your specific needs, concerns and fears. We see you each as special individuals and not merely as people with high blood pressure, diabetes, depression, obesity or high cholesterol. We see ourselves as your primary care providers, health care advisers, educators, and teammates. Patients that take an active role in their health care generally do better.
Dr. Jean Welsh, MD
Family Physician
12162 Tech Rd
Silver Spring, MD 20904
Dr. Blessing Ayanou, DNP, CRNP, FNP-BC
Family Physician
2501 Musgrove Road
Silver Spring, MD 20904
Dr. Uzochukwu Unegbu, MD
Family Physician
2501 Musgrove Road
Silver Spring, MD 20904
Tavershima Asom, MSN, RN, NP-C
Family Physician
1801 Briggs Chaney Rd
Silver Spring, MD 20905
Xinna Yi is a board-certified Family Nurse Practitioner with a Master of Science in Nursing from Wilkes University, which she completed in 2023. She brings a wealth of experience from her work in a family medical clinic and her previous role as a Registered Nurse specializing in cardiology medicine. Before transitioning to nursing, she graduated from medical school in China and gained one and a half years of experience as a gastrointestinal physician at an academic hospital in China.
Xinna is committed to patient-centered care, employing a collaborative, team-based approach to healthcare. She has a passion for continuous learning and teaching. In her personal life, she enjoys spending time with her family, reading, watching movies, and traveling.
Xinna Yi, FNP
Nurse Practitioner
6502 Kenilworth Ave
Suite 100
Riverdale, MD 20737
Colleen Abell is a board-certified Family Nurse Practitioner. She graduated with a Master of Science in Nursing from Georgetown University in 2006. She has practiced as a nurse practitioner for the past sixteen years. Ms. Abell's experience includes working in a family medical clinic, but she spent most of her career providing care for patients recovering from Bariatric and GI surgical/oncology procedures. Prior to becoming a nurse practitioner, Ms. Abell worked as a Registered Nurse in cardiology and emergency medicine.
Colleen joined the Gastro Center of Maryland in 2021 after relocating from the NY/NJ area. She is dedicated to being a great provider and advocate for her patients. Outside of work, Ms. Abell enjoys spending time with her husband and three boys.
Colleen Abell, CRNP
Nurse Practitioner
6502 Kenilworth Ave
Suite 100
Riverdale, MD 20737
Selamawit Abegaz, MS, CRNP, WHNP-BC, joined Frederick's Capital Women's Care team in 2024. Her healthcare career began after graduating from Montgomery College in 2017 with an Associate Degree in Nursing. While working as a Registered Nurse (RN) in a high-risk perinatal center at Holy Cross Hospital, Selamawit continued her education and earned a Bachelor of Science in Nursing from the University of Maryland in 2020. Her deep compassion for improving women's health and commitment to promoting equity and inclusivity within the healthcare system motivated her to pursue a Master's degree in the Women's Health Nurse Practitioner (WHNP) Program at Georgetown University, which she completed in 2024. With extensive experience caring for high-risk obstetric patients, Selamawit has honed the ability to build therapeutic relationships with patients from diverse communities. The rigorous WHNP program at Georgetown University further equipped her to deliver high-quality, evidence-based healthcare.
Selamawit is a dedicated advocate for equal access to exceptional care. Her mission is to ensure everyone receives the highest standard of evidence-based care regardless of their background or circumstances. This commitment reflects her core belief that high-quality healthcare is a fundamental right for all, inspiring hope for a more equitable future.
Dr. Selanawit speaks Amharic fluently
When not working, Selamawit enjoys spending time with her family, practicing yoga, and traveling.
Selamawit Abegaz
Nurse Practitioner
3430 Worthington Boulevard
Suite 202
Frederick, MD 21704
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Sandra Wittholz is a native of Mt. Pearl, Newfoundland, Canada. She received her Bachelors of Science in Nursing, with honors from the University of Kentucky and her Masters of Science in Nursing with a major in Women's Health from the University of Cincinnati. In 2002 she was awarded her Women's Health Nurse Practitioner Certificate from NCC; she was then licensed as a Certified Registered Nurse Practitioner- OB/GYN through the Maryland Board of Nursing in 2003 when site relocated to the state.
With over twenty years nursing experience, she has focused on Women's Health since 1997. Her previous work experience includes a position at Howard County General Hospital where she was a labor and delivery nurse. She is a member of the National Association of Nurse Practitioners in Women's Health.
Sandra is an avid runner enjoying everything from 5k’s to full and half marathons. She and her husband, Mark, are the proud and busy parents of two children.
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Ms. Sandra Wittholz, CRNP OBGYN
Nurse Practitioner
3430 Worthington Boulevard
Suite 202
Frederick, MD 21704
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Alyssa Larimore, CRNP is a certified registered Nurse Practitioner specializing in women's health. She received a Bachelor of Science and a Master of Science degree from the University of Maryland School of Nursing in 2001. She is a certified Nurse Practitioner in Women's Health through the University of Maryland School of Nursing and the National Certification Corporation for Obstetric, Gynecologic and Neonatal Nursing. Alyssa is a busy mother of three young children. She loves spending time with her family and still manages to exercise regularly. As a native of Maryland, Alyssa is a Ravens and Terps fan and enjoys attending their games.
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Ms. Alyssa Larimore, MS, CRNP, RN
Nurse Practitioner
3430 Worthington Boulevard
Suite 202
Frederick, MD 21704
Leah is a family nurse practitioner with clinical experience in women’s health and pediatrics. Most recently Leah worked at an outpatient pediatric facility in Loudoun County VA. Leah received a Masters of Science in the Family Nurse Practitioner program at Shenandoah University in 2013. Leah received a Bachelors of Science in Nursing from Shepherd University in 2006. Leah was a labor and delivery nurse at Fredrick Memorial Hospital from 2006-2013. In her spare time, Leah enjoys recreational running and spending time with her family.
Ms. Leah Oxendine
Nurse Practitioner
3430 Worthington Boulevard
Suite 202
Frederick, MD 21704
Dr. Blessing Ayanou, DNP, CRNP, FNP-BC
Family Physician
14200 Laurel Park Drive
Laurel, MD 20707
Dr. Uzochukwu Unegbu, MD
Family Physician
14200 Laurel Park Drive
Laurel, MD 20707
Dr. Uzochukwu Unegbu, MD
Family Physician
7350 Van Dusen Road
Suite 390
Laurel, MD 20707
Dr. Blessing Ayanou, DNP, CRNP, FNP-BC
Family Physician
7350 Van Dusen Road
Suite 390
Laurel, MD 20707
