Not saying this is my feelings, I see black providers.
However, what I have heard as a cause is the AIDS/HIV rates among people of the black community, especially in NOLA and BR (two of the highest rates in the country?) as a reason.
Impact on Racial and Ethnic Minorities
Racial and ethnic minorities have been disproportionately affected by HIV/AIDS since the beginning of the epidemic, and represent the majority of new HIV infections, people living with HIV disease, and deaths among people with HIV.2, 3, 4
Blacks and Latinos account for a disproportionate share of new HIV infections, relative to their size in the U.S. population (Figure 3).4, 5, 15
There are more than 510,000 Blacks living with HIV in the U.S.3 Analysis of national household survey data found that 2% of Blacks in the U.S. were HIV positive, higher than any other group.16
Blacks also have the highest rate of new HIV infections. In 2010, the rate of new HIV infections per 100,000 for Blacks (68.9) was about 8 times that of whites (8.7); Latinos (27.5) had a rate 3 times that of whites.4
Blacks accounted for about half (48%) of deaths among people with an HIV diagnosis in 2010.2
New HIV Infections & U.S. Population, by Race/Ethnicity, 2010
Figure 3: New HIV Infections & U.S. Population, by Race/Ethnicity, 2010
Survival after an AIDS diagnosis is lower for Blacks than for most other racial/ethnic groups, and Blacks have had the highest age-adjusted death rate due to HIV disease throughout most of the epidemic.2, 10, 11
HIV was the 4th leading cause of death for Black men and Black women, ages 25-44, in 2009, ranking higher than their respective counterparts in any other racial/ethnic group.11
http://kff.org/hivaids/fact-sheet/th...united-states/
CDC also says same thing in graphic.
http://www.cdc.gov/hiv/statistics/ba...tribution.html
http://365voice.com/top-25-cities-in-the-usa-with-aids/
Top 25 cities with AIDS based on 2010 Census:
Baton Rouge #2, NOLA #9
Don't shoot the messenger, you asked and I am only telling you what I have heard people tell me.