The presence of NIH and the Federal Government apparatus alone (not to mention Johns Hopkins next door) should disprove your hypothesis.

As do facts and numbers:

http://www.fiercebiotech.com/story/top-15-cities-biotech-ven...

http://www.genengnews.com/insight-and-intelligenceand153/top...

If we are naming cities NYC should be included. With 8 leading medical research institutions, the second highest annual NIH funding, and a wealth of talent/capital in adjacent industries - NYC's foundation for Biotech is extremely strong.

What about RTP?