PGSQL 9.3.2 COPY command issues

Hi there. My first post to this list. Hopefully, as time goes by, I will
be able to answer more questions than I ask.

I'm trying to import a very large CSV file of npi data into psql 9.3.2
using the COPY command. The data in the CSV file is surrounded by
quotes. Although there is a header, the data looks like this:
"1679576722","1","","","","WIEBE", etc.

Here is my psql command:
COPY data FROM '/Developer/data_20140608.csv' DELIMITER ',' CSV HEADER;

and here is the error I get:
ERROR: invalid input syntax for type numeric: ""
CONTEXT: COPY npi_data, line 2, column replacement_npi: ""

psql seems to be choking on the empty fields that are quoted. Any
suggestions as to how I get around this? I've tried including the QUOTES
statement but it made no difference.

Thanks,

Kevin