Thanks Roger and good morning and thank you for joining our call. As Roger mentioned, this quarter was in line with our expectation, so I'm going to focus on a few items within our results, our updated views for the remainder of the year, our transformational and restructuring activities and our thoughts about how those will progress as we move into 2020. Finally I'll give more details on balance sheet and our sources and uses of cash. First as part of our third quarter results, we recorded a $1.4 billion adjustment to Goodwill as we discussed in our earnings release this morning. This is a non-cash accounting adjustments and I'll highlight just a couple points here that you'll also find in our 10-Q. Number one, this charge related almost completely to our anesthesia group where operational and financial performance has been challenged for some time and the topic of discussion on a number of earnings calls. And two, this adjustment reflects the changes in our organizational structure that we detailed in August, where our three core medical groups are now their own individual units within our overall physician services segment. And under the rules are required to be tested separately. To be clear, this charge was purely an ordinary course accounting treatment of goodwill and the entire amount of the charge was not cash. Now in terms of our operating results for the quarter, we reported adjusted EBITDA of $133 million and adjusted EPS of $0.91 in line with our guidance ranges and right on top of expectations. On a year-over-year basis, adjusted EBITDA was up about $3 million compared to Q3 of 2018. For those of you maintaining models on the company, keep in mind that our EBITDA for the third quarter of last year was burdened by roughly $10 million in salary expense related to physicians at our North Carolina anesthesiology practice that remain employed through 2018 after our contract expired. As job then this year ago expense our adjusted EBITDA is declined somewhat about $7 million or 5% on a year-over-year basis, but we continue to narrow that gap during the quarter compared to the first, second quarters of this year. As Roger mentioned, our top-line performance exceeded our expectations driven by stronger end market demand. In total, our same unit revenue growth of 4.2% was above our guided range of 1% to 3%% with most of the upside driven by patient volumes in anesthesia, in neonatology and other pediatric services and radiology. First that the hospitals where we managed increase by just over 1.5% in the quarter. But the remainder of our reported growth and days relating to a modest year-over-year increase in average length of stay. We did benefit from an additional weekday during the third quarter which impacted our overall same unit revenue growth favorably by about 60 basis points, but even that is that the results were ahead of our expectations. On the cost side, our labor expenses were largely in line with our expectations for the quarter, both of the practice level and within G&A. Based solely on those cost trends, we would have anticipated a better pull through of EBITDA based on revenue strengths we saw in the quarter. As we noted in our release this morning, we did see higher than expected cost related to Med Mal legal and other insurance during the quarter. I'm not going to go into specific details on these costs, but I do want to give a couple comments here. Overall, we've seen a generally tougher legal environment throughout this year in terms of litigation activity med mal settlement amounts and hardening insurance markets. And I'll add that a lot of this isn't unique to us. That said these cost items offset some of the favorable top-line trends we saw in Q3 to the tune of roughly $5 million or $6 million more in the quarters than we had included in our guide. And we expect that they will persist at these higher levels in Q4 and likely carry into the next year. From P&L perspective, we record our expenses for these items in two areas, both in practice salaries and benefits and in G&A. So both of those line items are affected by changes in the cost. Moving on to our transformational and restructuring expenses, these totaled roughly $20 million in the third quarter and we're predominantly related to our consulting spends and severance related costs. As you also see in our guidance for the fourth quarter, we expect our investment pace to continue. With that in mind, I'd like to give you a fuller sense of how we're scoping these investments. As I discussed for some time in the past few quarters, we've quickly ramped up our transformational activity in partnership with best-in-class third party resources to identify and pursue operational improvements, technical process change and efficiencies across the organization. I would broadly classify the work streams we stood up in four major categories. Practice operation, revenue cycle management, information technology and human resources. Within each of these buckets we have multiple work streams, most of which involve some degree to a high degree of IT enablement. We also have a large number of interdependencies such that a lot of our work today is on those enabling IT investments which will set the stage for process improvements, greater effectiveness of our infrastructure and ultimately cost takeouts. This activity is all within the scope of the transformational initiatives we've discussed in the past. And we continue to expect that our timeline will run through 2020 and taper off over the course of 2021. I'll add it from a timing standpoint; we're still in the early innings of this activity with much of our efforts over the past quarter focused on supporting our existing activities to ensure that we minimize implementation risk. On top of this work, we're now standing up incremental investments focused on core integration activities. I'll define these as consolidating multiple systems for greater consistency, efficiency and data management. This core integration activity includes replacing the multiple IT systems we utilize today with walled wall implementation of Oracle and the cloud, moving to consolidate and standardize RCM platforms and systems and enhancing our IT support for our HR systems and talent management. Based on this activity, our outlook for the third party related transformational investments for the fourth quarter of this year is roughly $25 million and is an appropriate way to think of our run great investments for the next few quarters as we move into 2020. As core new systems get implemented there should be a tapering off of that spent. Last comment I'll make on our transformational investments is that we are intensely focused on time to value. For many companies you would normally contemplate a meaningfully longer timeline for this level of activity, but for Mednax we plan to compress that timeline significantly. And as a result, we expect to be intensely focused on our transformational activity over the coming 12 -18 months. With that said I think it's useful to discuss our cash flow, which is very strong both in Q3 and for the year-to-date. On a reported basis, operating cash flow from continuing operations in the third quarter was $156 million, compared $135 million in the third quarter of 2018. Taking into account the cash component of our transformational and restructuring expenses in the quarter, a better way to look at our true operating cash flow for the quarter is more in the range of roughly $170 million. In terms of our primary uses of that cash during the quarter we repaid $142 million in borrowings under our revolver and spent an additional $24 million for the acquisitions that Roger mentioned. Plus contingent payments on prior acquisitions. Finally, our CapEx in Q3 for continuing operations was only about $8 million, which you should think of is an appropriate quarterly run rate going forward. This is our prospective CapEx at something like $30 million a year, down from about $50 million per year now that we've completed the sale of MedData. I'll also reiterate some of Roger's comments on our sources needs of cash this year. Including the cash proceeds of the MedData sale, we have now generated nearly $0.5 billion in capital thus far in 2019 for almost an entire churn of adjusted EBITDA. With that capital we funded our transformational investment, acquisitions, share repurchases and capital expenditures. But at the same time repaying all of the borrowings on our line of credit. And as of last night, we additionally had nearly a $100 million of free cash sitting on our balance sheet. On a pro forma basis for the MedData sale, our total debt consists solely of our two note issuances and our leverage is roughly 3.4x. Turning to our guidance for the fourth quarter and this year, we provided in our press release this morning, we expect Q4 adjusted EBITDA of $125 million to $135 million. This outlook is consistent with our expectation which I discussed last quarter that adjusted EBITDA in the second half of the year should be fairly ratable between the third and fourth quarters. Based on our results for the first three quarters of 2019 in this outlook, we expect full-year adjusted EBITDA to be in the range of $500 million. And in terms of margins, we expect our adjusted EBITDA margin for the whole of the year to be in the range of roughly 14% to 14.5%. I'd like to conclude with a couple thoughts about the overall complexion of our EBITDA and our margin trends. First based on roughly $0.5 billion a year outlook for adjusted EBITDA, I want to give a sense of how it spreads across our three, four medical groups. Our pediatrics and obstetrics groups generate a little more than half our revenue but at somewhat higher percent of our EBITDA. Our anesthesia group generates roughly a third of our revenue of roughly 20% of our EBITDA. And while radiology represents only about 15% of our revenue, its EBITDA is catching up quickly with anesthesia. Second related to margins. From a modeling perspective, our expected adjusted EBITDA margin for this year reflects something in the range of 1 to 1.5 percentage point headwind, compared to -- since 2018. We get a lot of questions about how to think of our margin trends beyond 2019. So I'll make a couple broader comments about our transformational activities and some high-level expectations for how these activities should impact results over the 2020 and 2021 period. First, common focus of all our efforts is addressing this margin gap over the course of our transformation. And today, we are fully resourced to move forward across the whole scope of our initiatives. Second, as I noted earlier, we anticipate that 2020 will be a year of significant transformation focus for us as I detailed before. As a result, we do anticipate narrowing the quantum of margin pressure we face as we progress through the coming 18-months, but I also want to emphasize that while the yield we expect to generate from our transformational investments will likely build over time through 2020 and 2021, the timing and magnitude of that progress depend on a multitude of factors and remains difficult to forecast. As we move through the coming quarters, we will continue to refine our views while at the same time being as transparent as possible about what activity we're undertaking and how it's impacting our core business trends. With that let me turn it back to Roger.