5530 Wisconsin Avenue, Suite 700, Chevy Chase, MD 20815
11110 Medical Campus Road, Suite 150, Hagerstown, MD 21742
1201 Seven Locks Rd. Suite 216 Rockville, MD. 20854
1120 19th Street, NW, Suite 200, Washington, D.C. 20036
1115 U Street, NW, Suite 201
Monday - Friday    8 am - 4:30 pm

Office Phone 301.656.5050
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Below is contact information for insurance companies affiliated with CardioCare.

AARP1-888-OUR-AARP
Monday through Friday, 7 a.m. - 12 midnight ET
Aetna1-860-273-0123
Blue Cross Blue Shield Federal Employees1-800-848-9766 (only in plan service area)
Local: 202-484-1650
Maryland: 1-800-638-6756
CareFirst Blue Cross Blue Shield1-866-520-6099
Cigna HMO1-800-CIGNA24 (1-800-244-6224)
Cigna PPO1-800-CIGNA24 (1-800-244-6224)
Coventry First Health PPO630-737-7900
DC Medicaid1-866-407-2005
Monday through Friday, 8 a.m. - 5 p.m. EST
GEHA1-800-821-6136
Mail Handlers1-800-410-7778
MAMSI Life & Health800-342-3289 301-360-8063
MD IPA HMO & Optimum Choice800-331-2102 301-360-8040
MD IPA HMO & Optimum Choice Preferred Medical Plans800-638-8898 301-360-8100
Medicare1-800-MEDICARE (1-800-633-4227)
7 days, 24 hours a day
NCPPO1-800-272-5911 9:00 a.m. to 5:30 p.m.
EST Open business days.
Recorded messages after 5:30 p.m. EST
One Net PPO1-800-342-3289
Private Healthcare Systems1-866-680-7427, for the PHCS Network
1-800-546-3887, for claims and other inquiries
Railroad Medicare1-800-MEDICARE (1-800-633-4227)
7 days, 24 hours a day
United Health CareCall the number on the back of your ID card. If you don't have your ID card, call 1-866-633-2446. 8:00 a.m.- 8:00 p.m. in your local time zone, Monday through Friday