Thanks, Phil and thank you all for joining us this afternoon. We entered 2016 with strong momentum following the transformative second half of 2015. The first quarter has been highly productive. During today’s call, I will provide an overview of our progress in therapeutics, diagnostics, biologics and certain partnered programs. Before turning the call over to Adam Logal, our CFO for a detailed discussion of our financial performance. Let me begin with an update on RAYALDEE. We announced some exciting news this morning about our new collaboration with Vifor Fresenius for the development and commercialization of RAYALDEE in Europe, Canada and certain other international markets for the treatment of secondary hyperparathyroidism in patients with stage 3 and 4 chronic kidney disease and vitamin D insufficiency. Vifor Fresenius is a leader in chronic kidney disease therapy and we believe they are the ideal partner to bring RAYALDEE to patients across Europe and elsewhere. Under the terms of the agreement, we will also collaborate to develop and commercialize a different dosage form of RAYALDEE for the treatment of secondary hyperparathyroidism in dialysis patients from end stage or stage 5 renal disease and we have granted to Vifor Fresenius an option to acquire rights to the U.S. market for this indication. The financial terms of the deal provide that Vifor Fresenius will make an upfront payment of $50 million plus upto an addition of $232 million of regulatory and sales based milestones as well tiered double-digit royalties or net sale. If Vifor Fresenius exercises the option for the U.S. dialysis market, they will pay OPKO upto an additional $555 million in commercial milestones as well as double-digit royalties or net sales. Turning to the regulatory status of RAYALDEE. As you know in 2015 we submitted the NDA for RAYALDEE to the FDA. On March 29, our PDUFA date, the FDA indicated in a complete response letter that because of deficiencies at our third party contract manufacturer our drug could not yet be approved. It is important to note that the observations were not specific to RAYALDEE manufacturing, and the letter from FDA did not cite any safety, efficacy or labelling issues with regard to RAYALDEE, nor did it request any additional studies to be conducted prior to FDA approval. The third party manufacturer submitted its action plan to remedy the deficiencies as planned on April 15. We subsequently resubmitted our NDA to the FDA and the FDA accepted the resubmission as complete on April 22 and signed a new PDUFA date of October 22, 2016. As our commercial plans for RAYALDEE have always called for a launch in the second half of 2016, we do not believe this and that will delay those plans. In the meantime we are advancing our free launch activities. We are delighted to appoint Jim DeMarco, as Senior Vice President of Pharmaceutical Sales to support the launch of RAYALDEE. Under his supervision, we continue meeting with payers and are developing pricing and reimbursement strategies. We are continuing to build out our senior commercial leadership team and you can expect to hear of other key hirers in the very near future. We have a strong body of clinical evidence showing that RAYALDEE can safely and reliably serum total 25-hydroxyvitamin D in stage 3 and 4 chronic kidney disease patients. Indeed our phase 3 clinical data with RAYALDEE indicated that the level of 25 hydroxyvitamin D required these patients to substantially hire for stage 3 and 4 chronic kidney disease. These data are consistent with recent public presentations and publications that point in the same conclusion. And note that no currently available products that can reliably raise 25 hydroxyvitamin D levels in patients with stage 3 or 4 chronic kidney disease to the levels required for superior control of secondary hyperparathyroidism. The U.S. market opportunity for RAYALDEE exceeds $12 billion and there is also a significant global market opportunity. Consequently, we are very pleased with this co-development and commercialization agreement with Vifor Fresenius. Turning now to our diagnostic segment. Our strong performance in the first quarter continues to validate the rationale for last year’s acquisition of Bio-Reference Labs. Let me begin by highlighting our new President of Bio-Reference Lab, Dr. Greg Henderson. Dr. Henderson joined us on March 15 and brings to us the ideal combination of technical expertise, entrepreneurial and management expertise. We are confident his leadership will accelerate growth of our core traditional and genetic testing services as well as our important new products such as our 4Kscore test for prostate cancer. As you know 4Kscore is the only blood test that actually identifies an individual patients risk for aggressive prostate cancer. We make great strides in several key areas important to the successful marketing of our 4Kscore test. In addition to being included in the recommendations from the U.S. national comprehensive cancer network guidelines for prostate cancer further detection last fall in March the European Association of Urology prostate cancer guidelines panel included 4Kscore in their 2016 EAU guidelines for prostate cancer. The panel concluded that the 4Kscore as a blood test with greater specificity over the PSA test, it’s indicated for use prior to its first prostate biopsy or after a negative biopsy to assist patients and physicians to further define a probability of high grade cancer. Last November, the American Medical Association created a CPT 1 code for 4Kscore which will be published this August to be effective January 1, 2017. In the meantime, we’ve had a number of positive payer meetings and we continue to work with insurers to obtain broad coverage. To support both adoption and reimbursement, the results of a clinical utility study demonstrating the ability of 4Kscore to reduce the number of prostate biopsies performed while increasing the probability of detecting aggressive prostate cancer in men with abnormal PSA levels of digital rectal exam results was published in the January 2016 edition of the peer-reviewed journal reviews in neurology. This study included 611 patients seen by 35 academic and community neurologists across the U.S. and indicated that consideration of results from the 4Kscore test led to almost 65% fewer prostate biopsies being performed among participating patients. This combination of clinical and reimbursement progress continues to support our efforts as we rollout a 4Kscore test with approximately 200 Bio-Reference Labs, sales reps to both urologists and primary care physicians. The results have been dramatic. As we see in approximately double-digit percentage volume growth every month from the time we expanded in the region of 10% sales force to 200% Bio-Reference Labs team. In April alone, we performed over 4,600 4Kscore test. We also made significant progress with GeneDx, our higher margin genetic testing business. Our GeneDx unit had a very strong showing at the recent American College of Medical Genetics and Genomics annual meeting with 11 papers presented covering a range of topics from inherited [ph] cancers to whole Exome sequencing. Over the last several years, GeneDx has also been striving to better understand the genetic causes of autism and intellectual disability through research and its robust Whole Exome Sequencing program. Based on this increased understanding and knowledge, GeneDx was excited to launch Autism/Intellectual Disability Xpanded Panel. This is a dynamic testing panel analyzing approximately 2,000 genes that have been associated with autism, intellectual disability or developmental delay. Regarding our Claros1 point of care system, we continue to progress our plans to commercialise its novel diagnostic system to provide rapid, high performance blood test results at a point of care. With a single drop of blood, Claros1 can run test in a physician’s office or hospital nurses station, avoiding the use of a centralized reference laboratory for these tests. We expect to initiate and complete clinical trials for both PSA and testosterone utilizing the Claros1 system later this year. Upon FDA clearance, we expect to fully leverage Bio-Reference Labs in marketing, sales and distribution resources for the launch of Claros diagnostic test in the U.S. We are also developing test for TSH in vitamin D, but there are many more applications for the technology including infectious disease, cardiology, women's health and companion diagnostics. During the first quarter, we made meaningful progress advancing the development programs for certain of our biologics products, specifically our long-acting forms of Factor VIIa, human growth hormone and Oxyntomodulin. Let me start with our long acting version of coagulation Factor VIIa. In February, we initiated a phase 2a dose escalation study to determine safety and explore efficacy endpoints in patients with a long acting Factor VII CTP in the treatment of bleeding episodes of haemophilia A or B patients with inhibitors that Factor VIII or Factor IX. This study is intended to enrol 24 patients in the United States. Depending upon enrolment rates, we expect to have interim data by year end from this trial. We already have FDA and European orphan drug designations for Factor VIIa-CTP for these indications. Current treatment options with Factor VII require multiple IV infusions to treat bleeding episodes because of short half-life. Also, frequent IV infusions are onerous when used as prophylactic therapy especially for children. MOD-6031 is our long acting subcutaneous oxyntomodulin which is a natural appetite suppressor for the treatment of obesity and Type 2 diabetes. In March, we are pleased to dose the first subject in a phase 1 single dose escalation study evaluating the safety and pharmokinectics of MOD-6031 healthy, overweight or obese subjects. The study is intended to enrol 40 subjects and depending on enrolment rates we expect to have topline data by year end. Pre-clinical animal data showed that our compound reduced food consumption and body weight and led to improvements in glycemic control and lipid profile. Pharmecokinetic study showed extended kinetic profile in comparison to native Oxyntomodulin. We believe, Oxyntomodulin has the potential to be a safe, long-term therapy for obesity and type 2 diabetics, each of which represents a significant market opportunities. More than 380 million people are living with diabetes worldwide of whom approximately 90% of Type 2 diabetes. According to the World's Health Organization, there are more than 500 million severely overweight or obese people in the world. As a final topic of discussion let turn to our partnered products beginning with VARUBI. Our partner Tesaro commercially launched VARUBI in the U.S. last November for the treatment of chemotherapy educed nausea and vomiting. And we understand that the launch has progressed well. In accordance with our agreement, we are eligible to receive milestone payments of up to $30 million upon achievement of certain regulatory and commercial sales milestone, of which $20 million has been received to-date. An additional commercial milestone payments of up to $85 million specified levels of annual net sales are achieve. In addition, there are tier double-digit royalties on net sales in the United States and the European Union. Tesaro remains committed to expanding access to VARUBI for cancer patient suffering CIMV. They submitted in NDA with the FDA for intravenous version of VARUBI in March. Also in March they submitted an application from marketing authorization in Europe for oral VARUBI. During the first quarter we made excellent progress advancing the development program for long-acting human growth hormone products hGH-CPT which is part of worldwide with Pfizer. Enrolment in a global Phase 3 clinical trial in adults was completed in late June. Top line data readout is expected for the end of 2016. These forthcoming data are expected to support registration in the EU and United States. Last month we've reported 18 to 24 months clinical data from our ongoing open label extension study of a Phase 2 pediatric study for hGH-CPT in a podium presentation at the Endocrine Society annual meeting. That study is a continuation of our Phase 2 one year dose finding study which 53 naïve growth hormone deficient children received one of three dose that hGH-CPT once weekly or daily nutropin as impaired Published 12-month data from the Phase 2 study confirm comparable responses to once weekly hGH-CPT and daily nutropin as reflected by the safety efficacy pharmacodynamic profile. Based on a promising Phase 2 pediatric clinical we planned to initiate a global pivotal Phase 3 study in pre [ph]pivotal growth hormone deficient children later in this year. Our agreement with Pfizer its worth of total of $570 million in milestone payments plus royalties which we have so far received $295 million. In conclusion, this year has gotten off to a strong start. We are continuing with our pre-launch plans for RAYALDEE. We have a terrific new default for seniors to expand the commercialization of RAYALDEE beyond the U.S markets and beyond the initial therapeutic indication of Stage 3 and 4 chronic kidney, throughout 2016, we expect to achieve a number of value creating milestones as we continue to increase revenue from Bio-Reference Labs and enhance the commercialization of 4Kscore with over 200 sales people. Advancing the clinical program for Claros, making progress with the multiple clinical programs are underway including reporting data from our Phase 3 trial of our along-acting human growth hormone, and initiating the global Phase 3 pediatric study Before turning the call over to Adam for review of our financial performance, I'd like to note that we will be holding an Analyst Day even in New York City on June 15 again at 4.30 PM. We expect to have key option leaders in molecular diagnostics and chronic kidney disease, as well as our entire management team for review our progress and plans moving forward. We look forward to hosting interesting and informative event. We're going to limit in person attendance to analysts and institutional investors, but the entire event will be webcast both live and archive to encourage everyone else to listen in via the internet. Adam.