I did not find Dr. Chetachi Okereke helpful at all. She is more like a small irrelevant cog, in a large wheel of the institution she works for, rather than being an attentive specialist for her patients.
As a rheumatologist, she was unable to provide answers to my questions about my health issues. She did absolutely nothing to help me with my illness.
If you have her as your specialist do not expect much of her, instead seek another rheumatologist.