• 118 La Grange Avenue La Plata,MD 20646 Phone Number: 240-349-2536 Fax Number: 800-517-4345
  • 4302 Saint Barnabas Road, Ste. G Temple Hills, Maryland 20748 Phone Number: 240-619-5620 Fax Number: 800-853-3149
Our staff exhibit unwavering dedication to excellent patient care.

Calista Ogbu, FNP-BC, PMHNP-BC is a certified Family Nurse Practitioner and a certified Psychiatric Mental Health Nurse Practitioner. She has many years of experience in family practice, behavioral health, and addiction treatment. Calista started her academic career at Prince Georges Community College Largo, where she obtained an Associate Degree in General Studies and later transferred to Bowie State University to complete her first degree and obtained a bachelor’s degree in nursing (BSN). Her desire for knowledge and expertise in nursing made her return to school for a master’s degree in nursing as a nurse practitioner in family nursing at Chamberlain University. She continued to improve her skills in nursing and diversify her practice.

Greg Obiwuma, PMHNP-BC is a Psychiatric Nurse Practitioner at the FaithFirst Health Clinic and Urgent Care. He attended the American Sentinel University Colorado where he obtained his Bachelor’s degree in nursing. While working at St. Elizabeth Hospital. He pursued his masters’ degree in Psychiatric Mental Health Nurse Practitioner at Walden University and is certified as a Psychiatric Mental Health Nurse Practitioner with the American Nurses Credentialing Center. Worked as a staff nurse in the Long Term Care, Substance Use and Addiction Center, and Psychiatric Unit.

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