Thanks, Seth. We are looking forward to seeing many of you in Arlington here in a few weeks. Before we get into our detailed results for Q1, I'd like to highlight a couple of disclosure updates we're making as we integrate NIA and move towards One Evolent. These were previewed on our February call, and now we have numbers to talk about, so let's review those. First, as discussed, we are now reporting our financial results in one reportable segment. as we focus future growth on our specialty value-based care business and integrate the entire organization around the specialty-led strategy. To provide insight into the growth drivers of our business, we are continuing to disclose product membership and PMPM fees for our 3 core product types, which we'll describe going forward as Performance Suite, Specialty Technology and Services Suite and Administrative Services. We are also maintaining the metrics for cases and revenue per case we established last year for the parts of our business where revenue is not PMPM driven. Since our clients can have multiple solutions deployed over the same membership, for example, cardiology, oncology, musculoskeletal, advanced imaging and so on, we are also introducing a metric of estimated unique members to accompany our existing metrics on members by product. Let me give you a real-life example here. The Medicaid plan on the East Coast has approximately 250,000 members and 3 Evolent products deployed administrative services and specialty technology and services for musculoskeletal and advanced imaging. This plan will account for 5,000 specialty and technology services product members and 250,000 administrative services product members for a total of 750,000 product members. Under our new disclosure, this plan would contribute $250,000 to our unique member count. In total, we had an estimated 41.3 million unique members during the first quarter of 2023, with a total of 65.6 million products members for an average of 1.6 products per unique member. Given that we have 6 separate categories of PMPM-based products that we can provide any 1 member, excluding our case rate products, we believe these metrics together provide visibility into a key element of our strategy, our ability to grow within our clients and cross-sell additional solutions further penetrating their specialty spend categories. Finally, to simplify your modeling efforts, we are now providing average monthly membership and corresponding PMPM fees versus period ending membership. Average membership is the primary driver of revenue for the quarter. We have provided a table showing each of these metrics quarterly back through 2022 in the earnings presentation posted to our website. Now let's talk about the first quarter. A key theme is our Performance Suite partnerships, which continue to progress as expected and drove both our top and bottom line results in the quarter. You'll see in our 10-Q a reduction of about $20 million in claims costs related to 2022 and prior, which falls into 3 categories: First, about $9 million of the $20 million is related to reductions in revenue with minimal impact to adjusted EBITDA. This symmetric reduction can happen in Medicaid, in particular, when both Lee and our partners are performing quite well relative to minimum medical expense floors. Without this onetime deduct to revenue from prior periods, our top line for the quarter would have been approximately $437 million. The remaining lower claims expense flowed through to our bottom line in the quarter and was consistent with our expectations for the year. As we discussed on our call in February, we will typically see a pickup in margins in the first 3 to 5 quarters of the performance suite go live when we have the data to switch our accruals from an initial budget to being based on actual claims experience. And we saw a $7 million pickup in the quarter from such dynamics. Finally, during Q1, we also received final performance data driving the release of about $4 million in margin that was originally anticipated for Q2 and Q3. This accelerated recognition of adjusted EBITDA from future quarters in 2023 was the main driver of results, slightly exceeding our first quarter guidance range. Overall, we are pleased with the progress in our performance suite. These sorts of quarter-to-quarter dynamics are factored into how we forecast and guide on the business as our performance suite margins continue to mature at the pace we expect. I also want to highlight continued progress in our cash flow and balance sheet. As you know, we are highly focused on cash generation and delevering. We ended the quarter with net debt of $523.4 million or 3.9x our reported trailing 12-month adjusted EBITDA. Adding to our trailing 12-month adjusted EBITDA, the full year's worth of the acquired adjusted EBITDA from IPG and NIA, an additional $47.9 million, results in a ratio of 2.9x, already lower than our initial target to the end of 2023 and largely driven by cash generation in the quarter after the NIA transaction. In addition, after the quarter closed, our available cash increased by an incremental $20 million from the Passport wind down. We expect to repatriate up to an additional $10 million of cash later in this year, as we complete the shutdown process for that plan. We remain committed to using excess cash to pay down our debt, and we repaid $37.5 million on our revolving facility during Q1 '23. Now let's review the numbers before turning to guidance. Revenue in the quarter was $427.7 million, an increase of 44% versus the same period in the prior year. Excluding the addition of $48.5 million in revenue from NIA in the quarter, growth was about 28%. Let's break down membership and PMPMs for the quarter. We averaged 3.2 million product members on the Performance Suite during Q1 compared to $1.5 million in Q1 of '22, with an average PMPM fee of $24.66 and versus $38.19 a year ago and in line with our average fees in Q4. As a reminder, the year-over-year change in average PMPM is a result of higher growth in Medicaid and commercial lines of business, which were lower than our corporate average. Product membership in our Specialty Technology and Services Suite was 60.5 million members during the first quarter compared to $14.3 million in the same period last year. average PMPM fees were $0.36 for the first quarter of '23 versus $0.32 in the first quarter of '22, with the growth in membership principally driven by the addition of NIA. Product members on administrative services, formerly Evolent Health Services, were $1.9 million compared to $2.1 million in the same period of the prior year, with an average PMPM fee of $14.91 versus $17.34 in the first quarter of '22, Total quarterly cases associated with Advanced Care Planning and Surgical Management totaled $15,433 for the first quarter. And average revenue per case totaled approximately 55 for the first quarter, both in line with expectations. Our adjusted EBITDA result was $50.5 million versus $24.3 million in the first quarter of '22, reflecting organic growth, maturation of our Performance Suite contracts and the addition of IPG and NIA. Adjusted EBITDA margin of 11.8% represented expansion of 360 basis points over the same quarter last year with the same drivers. As a result of the close of the NIA transaction, we made 2 noncash entries related to our tax assets and liabilities, releasing the majority of our remaining valuation allowance against our deferred tax assets and including the remaining liability under the tax receivable agreement we have with our pre-IPO investors for a net benefit in the quarter of about $2 million. With our historical net operating losses and at current course and speed, we do not expect to have meaningful federal cash tax expenses until 2025 at the earliest. Turning to the balance sheet. We finished the quarter with $157.5 million in cash and cash equivalents, including $32 million in cash held in regulated accounts related to the wind down of Passport. Excluding the cash held for Passport, we had $126 million of available cash a decrease of $26 million versus the end of the fourth quarter and slightly ahead of where we'd expect to be with normal working capital seasonality. Cash deployed for capitalized software development in the quarter was $8.1 million. Turning now to our outlook for the year. Based on strong underlying performance, we are reiterating our full year adjusted EBITDA guidance of $180 million to $200 million and modestly raising our revenue guidance for the year to be between $1.935 billion and $1.965 billion, an increase of $10 million at the midpoint. A couple of reminders on what goes into this outlook. On the top line, we expect to see nice quarter-over-quarter expansion across each of the next 2 quarters as we go live with previously announced Performance Suite partnerships with Molina and Humana. Regarding Medicaid redeterminations, we have no meaningful incremental data since the last time we spoke, and we have not changed our assumptions. 3 key reminders on those assumptions. First, most of our Medicaid revenue is derived from states like Illinois that we expect will start redetermination later in the year. Second, we expect the gross impact on our Medicaid membership to be between 8% and 10% by the end of the year, representing a couple of points of net revenue headwind this year given that Medicaid represents about 40% of our revenue. And finally, we have incorporated into our bottom line guidance an assumption that those members who come off of the Medicaid roles are healthier than those who stay on representing a modest negative adjusted EBITDA impact as well. We believe our profitability assumptions are conservative here, given that we typically have contractual rights to adjust up our PMPMs, if we do, in fact, lose healthier members. Given the timing benefit to adjusted EBITDA in Q1 that I referenced earlier, we have revised our expectations for adjusted EBITDA sequencing across the quarters. We now expect Q3 2023 to be the low quarter of adjusted EBITDA, stepping back up in the next quarter to exit 2023 with a strong Q4. Accordingly, for Q2, we are expecting revenues of between $455 million and $470 million and adjusted EBITDA between $45 million and $49 million. And with that, let's go ahead and open it up for Q&A tonight.