I am a physician on H1b. I am planning to do moonlighting. Can I have my friend who is a USA citizen open a new LLC and employ me and do my H1b?

If you are thinking about working for another company, that company would have to sponsor you for another H-1B. That can be done at any time if it is a concurrent H-1B petition. U.S.C.I.S. will look at the company to see whether it believes that it would be an appropriate organization. The bigger the organization, the better. A company with no history, a small number of employees, and little revenue or capitalization would find it difficult to convince U.S.C.I.S. of its being an appropriate vehicle for an H-1B. The fact that the address and work description remain the same does not relieve you from the necessity of obtaining another H-1B to work for a different company. Due to the limitations of the Lawyers.com Forums, Alan Lee, Esq.'s (the "Firm") participation in responding to questions posted herein does not constitute legal advice, nor legal representation of the person or entity posting a question. No Attorney/Client relationship is or shall be construed to be created hereby. The information provided herein by the Firm is general, and requires that the poster obtain specific legal advice from an attorney. The poster shall not rely upon the information provided herein as legal advice nor as the basis for making any decisions of legal consequence.