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McNeal Brockington, III, M.D.
Karen Trent-Mims, M.D.

Ramona Robinson, M.D.
Joy Ahanonu, CRNP

Ruchira Thakor, M.D., MPH
Carol Thelen, CRNP- Family Medicine

Carol Reynolds-Freeman, M.D.

Gloria Fuentes, M.D.
Joyce Ghiorzi, M.D.

Carol Reynolds-Freeman, M.D.Carol Reynolds-Freeman, M.D.
Specialty Pediatrics

Dr. Reynolds-Freeman, Board Certified in Pediatrics, completed her residency in Pediatrics at the University of Maryland Hospital. Her goal is to make each patient and family feel her personal and professional desire to provide the best medical care available.

Ramona Robinson, M.D. Ramona Robinson, M.D.
Specialty Internal Medicine

Dr. Robinson, Board Certified in Internal Medicine, graduated from the University of Maryland School of Medicine, and completed her residency and internship at Franklin Square Hospital. Dr. Robinson has been in practice with Potomac Physicians since 1985. In order to provide the best possible patient care, she combines knowledge, experience, and compassion.

Karen Trent-Mims, M.D. Carol Thelen, CRNP
Family Medicine

Ms. Thelen is a Family Nurse Practitioner (NP), Board Certified to provide family centered health care to patients of all ages. Ms. Thelen diagnoses and treats common health care problems such as diabetes, high blood pressure, infections, and injuries, and coaches individuals and families about disease prevention and positive health and lifestyle choices.  Ms. Thelen is a graduate of the Family NP program at The Catholic University of America, and also earned a Bachelor of Science degrees from The Johns Hopkins University and the U.S. Air Force Academy.  Ms. Thelen's goal is to treat each person with compassion and respect and support patients to reach their goals through well-informed decisions about lifestyle and treatment options.

Karen Trent-Mims, M.D. Karen Trent-Mims, M.D.
Specialty Internal Medicine

Dr. Trent-Mims graduated from the University of Maryland Medical School after earning an undergraduate degree in biochemistry from the University of Pittsburgh. She completed her residency at Maryland General Hospital. Dr. Trent-Mims has been with Potomac Physicians since 1987. She believes that it is important to consider more than physical symptoms when treating an illness.

Ruchira Thakor, M.D., MPH Ruchira Thakor, M.D., MPH
Specialty Family Practice

Dr. Thakor, Board Certified in Family Practice, completed her residency in Family Practice at the University of Maryland. She takes the approach of treating the "whole" person and places special emphasis on taking the time to listen.



Gloria Fuentes, M.D.
Specialty Pediatrics

Dr. Fuentes, Board Certified in Pediatrics, completed her Pediatrics residency at the University of Maryland Hospital, and began practicing in 1986. A Fellow of the American Academy of Pediatrics, Dr. Fuentes focuses on more than just treating a condition-encouraging prevention and education as well. She is also fluent in Spanish.

McNeal Brockington, III, M.D.
Specialty Internal Medicine

Board Certified Internal Medicine, joined Potomac Physicians in 2004. He completed his residency at the Hurley Medical Center in Flint Michigan. Dr. Brockington enjoys participating in the community and encourages healthy life styles and preventive care.

Joyce Ghiorzi, M.D.
Speciality Pediatrics

Dr. Joyce Ghiorzi is a Board Certified pediatrician. She received her medical education at the University of Kansas School of Medicine, and completed her Pediatrics residency at the University of Maryland Medical Center. A cancer survivor herself, she understand how it feels to be medically vulnerable. She believes that providing good medical care not only includes taking care of physical body, but also the emotion of patients. She emphasizes preventive care and promotes healthy diet and life style to maintain health.


Potomac Physicians has been recognized by the National Committee for Quality Assurance for meeting the highest standards and performance benchmarks in the care of patients with Diabetes, High Blood Pressure and/or Heart Disease to enhance patient care.

Security Health Center
4 West Rolling Cross Roads
Suite 100
Catonsville, Maryland 21228

W-F             8:00am - 5:30pm
M-T-Th         8:00am - 7:30pm
Sat              9:00am - 1:00pm

Potomac Physicians participate in a number of insurance plans. Call to see if yours is included.