Shemicka Asom, CRNP
Family Physician
9950 Oak Lea Ct
Ellicott City, MD 21042
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282 providers
Availability last updated 07/01/2025
Shemicka Asom, CRNP
Family Physician
9950 Oak Lea Ct
Ellicott City, MD 21042
Tavershima Asom, MSN, RN, NP-C
Family Physician
9950 Oak Lea Ct
Ellicott City, MD 21042
Shemicka Asom, CRNP
Family Physician
9420 Ridgeview Drive
Columbia, MD 21046
Tavershima Asom, MSN, RN, NP-C
Family Physician
9420 Ridgeview Drive
Columbia, MD 21046
Dr. Blessing Ayanou, DNP, CRNP, FNP-BC
Family Physician
9001 Cherry Lane
Laurel, MD 20708
Dr. Uzochukwu Unegbu, MD
Family Physician
9001 Cherry Lane
Laurel, MD 20708
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
Mai Nguyen, MD
Dermatologist
939 S. Wakefield St. # 201
Arlington, VA 22204
Shemicka Asom, CRNP
Family Physician
2839 Country Lane
Ellicott City, MD 21042
Tavershima Asom, MSN, RN, NP-C
Family Physician
2839 Country Lane
Ellicott City, MD 21042
Shemicka Asom, CRNP
Family Physician
2913 Greenway Dr
Ellicott City, MD 21042
Tavershima Asom, MSN, RN, NP-C
Family Physician
2913 Greenway Dr
Ellicott City, MD 21042
Euphemia Brumskine
Family Physician
9811 Mallard Dr Ste 118
Laurel, MD 20708
Sohaib Elsayed, MD
Family Physician
3481 N Beauregard St
Alexandria, VA 22302
Catherine Holder, PA-C, is a physician assistant with more than 10 years of experience. At Fairfax Colon & Rectal Surgery, PC. Catherine specializes in diagnosing and treating anal pain, hemorrhoids, abscesses, and other colorectal conditions.
Catherine completed her undergraduate and physician assistant training at Marquette University in Milwaukee, Wisconsin, before returning to her home state of Alaska to specialize in colon and rectal surgery. During the early years of her career, Catherine met her husband, an Air Force pilot, and relocated to Washington state, where she continued to specialize in surgery.
After welcoming their third child, Catherine and her husband were stationed in Illinois. Catherine transitioned into being a stay-at-home parent during this time before having her third child and moving to Northern Virginia. She is thrilled to rejoin the workforce and return to her passion of helping others at Fairfax Colon & Rectal Surgery, PC.
With extensive education, training, and a compassionate demeanor, Catherine hopes to help her patients feel empowered to face their medical and surgical concerns.
Catherine Holder
Physician Assistant
1800 N. Beauregard St
Ste 310
Alexandria, VA 22311
At Fairfax Colon & Rectal Surgery, PC, the board-certified colon and rectal surgeons provide comprehensive colorectal care to adults at six convenient locations in Fairfax, Fair Oaks, Alexandria, Gainesville, Woodbridge, and Lansdowne, Virginia.
Fairfax Colon & Rectal Surgery, PC was founded by Dr. Colvin in 1984 as a one-man endeavor. At that time, colon and rectal surgery was a relatively new concept in Northern Virginia. A lot’s changed in the more than 30 years since, but FCRS has continued to pioneer advances in colon and rectal surgery.
Each practice location features a welcoming, spa-like environment and state-of-the-art diagnostics and surgical equipment. Patients can access same-day treatment for a wide range of anorectal health problems, including hemorrhoids, anal cancer, anal pain, rectal cancer, and fecal incontinence.
Whenever possible, the providers recommend minimally invasive treatments, like laparoscopy or robotic-assisted da Vinci surgery. These procedures allow for smaller incisions, shorter hospital stays, and a reduced risk of infection.
FCRS performs more than 45% of all colorectal procedures in Northern Virginia. The provider’s knowledge and expertise don’t go unnoticed. Many of the surgeons have even been voted “Best Doctors” and “Top Doctors” by Washingtonian and Northern Virginia magazines.
To receive high-quality outpatient surgery at an AAAHC accredited Ambulatory Surgical Center, partner with the fellowship-trained, board-certified colorectal surgeons at Fairfax Colon & Rectal Surgery, PC. Make an appointment by calling the nearest office or clicking the online booking feature today.
Alexandra Minutillo
Physician Assistant
1800 N. Beauregard St
Ste 310
Alexandria, VA 22311