Listed below are the health plans our practice currently participates in. Where available, a web link is provided. In some cases, you may select Dr. Horowitz as you Primary Care provider on-line. We have given our provider ID number, where appropriate, to make this process easy. Administrative Concepts Aetna/US Healthcare Aetna ID: 42058546 USHC Office:  7465 Anthem Health Beach Street Health Plan Blue Choice ID: 42F211 Blue Cross/Blue Shield CIGNA Corporate Health Administrations Empire Blue Cross/Blue Shield Empire Plan New York State Employees First Health GHI ID: 60015216 non-network provider effective 12/1/00 Guardian Guardian PHCS Guardian PHS Healthease Healthsource HIP of NY ID: 159483 Magnacare Medicare Members Choice Multiplan New York Hospital Health Plans Oxford Health Plans ID: NP239 PHCS Private Healthcare Systems PHS Physicians' Health System ID: 911200 Prudential SAG Screen Actors Guild Unicare United Health Care   ECommercePartners New York Web site design company