Here is the list of current mail order pharmacies accessible via electronic prescribing per the Allscripts program (which I find much more complete).
Accredo Health Group Inc-Mail
1620 Century Center Parkway
Memphis, TN
Aetna RX Home Delivery
10991 NW Airworld Dr
Kanasa City, MO
Aetna RX Home Delivery
2528 NW 19th Street
Pompano Beach. FL
Aetna Specialty Pharmacy
503 Sunport Lane
Orlando, FL
Benecard Pharmacy
5010 Ritter Road
Mechanicsburg, PA
Carolina Care
4400 Golf Acres Drive
Bldg J, Suite C
Charlotte, NC
Cigna Tel-Drug Of Pennsylvania Inc
203 Welsh Rd
PO Box 1019
Horsham, PA
Costco Mail-Order Was #581
802 134th Street Suite 140
Everett, WA
CVS Caremark Inc (Mail Order)
9501 E Shea BLVD
Scottsdale, AZ
DMC Pharmacy Mail Service
4201 St Antoine, Ste B
Detroit, MI
Drugsource
2020 Lunt Avenue
Elk Grove Village, IL
ESI Mail Order Pharmacy
MO
Focus Exp. Mail Pharmacy
1250 Easton Rd
Horsham, PA
Immediate Pharmaceutical Services
33381 Walker Rd
Avon Lake, OH
Informed Mail
9994 Premiere Pkwy
Miramar, FL
Innoviant Pharmacy
1800 Byberry Rd, Ste 1202
Huntington Valley, PA
Mail Order- Bioscrip Pharmacy, Ohio
2787 Charter Street
Columbus, OH
Mail Order Meds Of Florida, LLC
4500 Biscayne Blvd, Suite 104
Miami, FL
Mail-Meds Clinical Pharmacy
3677 Central Ave, Suite A
Ft. Myers, FL
Maxor Mail Order Pharmacy
216 S. Polk
Amarillo, TX
Maxor USFH/DOD Mail Order Pharmacy
216 S. Polk
Amarillo, TX
Medco Mail Order
255 Phillipi Road
Columbus, OH
National Direct Home Pharmacy, LLC
317 Zimal Crest Drive
Columbia, SC
New England MO Pharmacy
111 Maple Street, Unit 26
Middlebury, VT
Orchard Pharmaceutical Services
7835 Freedom Ave NW
PO Box 3094
North Canton, OH
Pharmacy Home Delivery
110 Keith Street SW
Cleveland, TN
PMSI Pharmacy
175 Kelsey Lane
Tampa, FL
Postal Prescription Services 701249
3500 SE 26th Ave
Portland, OR
Prescription Solutions Mail Order
2858 Loker Ave East Suite #100
Carlsbad, CA
Primemail (Mail Order) Electronic
4580 Paradis Blvd. NW
Albuquerque, NM
Rightsource RX
9843 Windisch Rd
West Chester, OH
RX Crossroads LLC
4500 Progress BLVD
Louisville, KY
United Mail Pharmacy Services LC
800 E Hallandale Beach Blvd Ste 18
Hallandale, FL
Walgreens Mail Service 02445
8337 S. Park Cir.
PO Box 628001
Orlando, FL
Walgreens Mail Service 03397
8350 S. River Pkwy
PO Box 29061
Tempe, AZ
Wellpartner Pharmacy
7216 SW Durham Rd Ste 200
Portland, OR
Wellpoint NextRX Mail Pharmacy
PO Box 961025
PO Box 66773
Fort Worth, TX