The accompanying Consolidated Financial Statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information set forth in the Accounting Standards Codification (“ASC”), as published by the Financial Accounting Standards Board (“FASB”), and with the Securities and Exchange Commission (“SEC”) instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair statement of results for the interim period have been included. Operating results for the three months ended March 31, 2019 are not necessarily indicative of the results that may be expected for the year ending December 31, 2019. The accompanying Consolidated Financial Statements and related notes should be read in conjunction with the audited Consolidated Financial Statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2018, filed with the SEC on February 8, 2019. Certain prior period amounts have been reclassified to conform to the current period presentation.

The accompanying Consolidated Financial Statements include our accounts and the accounts of our wholly owned subsidiaries and the joint venture entities over which we exercise control. All intercompany transactions and balances have been eliminated in consolidation, and our net earnings are reduced by the portion of net earnings attributable to noncontrolling interests.

GAAP requires us to identify entities for which control is achieved through means other than voting rights and to determine which business enterprise is the primary beneficiary of variable interest entities (“VIEs”). A VIE is broadly defined as an entity with one or more of the following characteristics: (a) the total equity investment at risk is insufficient to finance the

entity’s activities without additional subordinated financial support; (b) as a group, the holders of the equity investment at risk lack (i) the ability to make decisions about the entity’s activities through voting or similar rights, (ii) the obligation to absorb the expected losses of the entity, or (iii) the right to receive the expected residual returns of the entity; and (c) the equity investors have voting rights that are not proportional to their economic interests, and substantially all of the entity’s activities either involve, or are conducted on behalf of, an investor that has disproportionately few voting rights. We consolidate our investment in a VIE when we determine that we are its primary beneficiary. We may change our original assessment of a VIE upon subsequent events such as the modification of contractual arrangements that affects the characteristics or adequacy of the entity’s equity investments at risk and the disposition of all or a portion of an interest held by the primary beneficiary.

We identify the primary beneficiary of a VIE as the enterprise that has both: (i) the power to direct the activities of the VIE that most significantly impact the entity’s economic performance; and (ii) the obligation to absorb losses or the right to receive benefits of the VIE that could be significant to the entity. We perform this analysis on an ongoing basis.

As it relates to investments in joint ventures, GAAP may preclude consolidation by the sole general partner in certain circumstances based on the type of rights held by the limited partner or partners. We assess limited partners’ rights and their impact on our consolidation conclusions, and we reassess if there is a change to the terms or in the exercisability of the rights of the limited partners, the sole general partner increases or decreases its ownership of limited partnership (“LP”) interests or there is an increase or decrease in the number of outstanding LP interests. We also apply this guidance to managing member interests in limited liability companies (“LLCs”).

We have separately identified certain special purpose entities that were established to allow investments in research and innovation projects by tax credit investors (“TCIs”). We have determined that these special purpose entities are VIEs, we are a holder of variable interests and that we are the primary beneficiary of the VIEs, and therefore we consolidate these special purpose entities. Our primary beneficiary determination is based upon several factors, including but not limited to the rights we have in directing the activities which most significantly impact the VIEs’ economic performance as well as certain guarantees which protect the TCIs from losses should a tax credit recapture event occur.

In general, the assets of consolidated VIEs are available only for the settlement of the obligations of the respective entities. Unless otherwise required by the LP or LLC agreement, any mortgage loans of the consolidated VIEs are non-recourse to us. The table below summarizes the total assets and liabilities of our consolidated VIEs as reported on our Consolidated Balance Sheets.

We own a majority interest in NHP/PMB L.P. (“NHP/PMB”), a limited partnership formed in 2008 to acquire properties from entities affiliated with Pacific Medical Buildings LLC (“PMB”). Given our wholly owned subsidiary is the general partner and the primary beneficiary of NHP/PMB, we consolidate it as a VIE. As of March 31, 2019, third party investors owned 3.3 million Class A limited partnership units in NHP/PMB (“OP Units”), which represented 31% of the total units then outstanding, and we owned 7.3 million Class B limited partnership units in NHP/PMB, representing the remaining 69%. At any time following the first anniversary of the date of their issuance, the OP Units may be redeemed at the election of the holder for cash or, at our option, 0.9051 shares of our common stock per OP Unit, subject to further adjustment in certain circumstances. We are party by assumption to a registration rights agreement with the holders of the OP Units that requires us, subject to the terms and conditions and certain exceptions set forth therein, to file and maintain a registration statement relating to the issuance of shares of our common stock upon redemption of OP Units.

As redemption rights are outside of our control, the redeemable OP Units are classified outside of permanent equity on our Consolidated Balance Sheets. We reflect the redeemable OP Units at the greater of cost or redemption value. As of March 31, 2019 and December 31, 2018, the fair value of the redeemable OP Units was $191.3 million and $174.6 million, respectively. We recognize changes in fair value through capital in excess of par value, net of cash distributions paid and purchases by us of any OP Units. Our diluted earnings per share includes the effect of any potential shares outstanding from redemption of the OP Units.

Certain noncontrolling interests of other consolidated joint ventures were also classified as redeemable at March 31, 2019 and December 31, 2018. Accordingly, we record the carrying amount of these noncontrolling interests at the greater of their initial carrying amount (increased or decreased for the noncontrolling interests’ share of net income or loss and distributions) or the redemption value. Our joint venture partners have certain redemption rights with respect to their noncontrolling interests in these joint ventures that are outside of our control, and the redeemable noncontrolling interests are classified outside of permanent equity on our Consolidated Balance Sheets. We recognize changes in the carrying value of redeemable noncontrolling interests through capital in excess of par value.

For certain of our research and innovation centers, we are party to contractual arrangements with TCIs that were established to enable the TCIs to receive benefits of historic tax credits (“HTCs”) and/or new markets tax credits (“NMTCs”). As of March 31, 2019, we owned nine properties that had syndicated HTCs or NMTCs, or both, to TCIs.

HTCs are delivered to the TCIs upon substantial completion of the project. NMTCs are allowed for up to 39% of a qualified investment and are delivered to the TCIs after the investment has been funded and spent on a qualified business. HTCs are subject to 20% recapture per year beginning one year after the completion of the historic rehabilitation of the subject property. NMTCs are subject to 100% recapture until the end of the seventh year following the qualifying investment. We have provided the TCIs with certain guarantees which protect the TCIs from losses should a tax credit recapture event occur. The contractual arrangements with the TCIs include a put/call provision whereby we may be obligated or entitled to repurchase the interest of the TCIs in the special purpose entities at the end of the tax credit recapture period. We anticipate that either the TCIs will exercise their put rights or we will exercise our call rights prior to the applicable tax credit recapture periods.

The portion of the TCI’s investment that is attributed to the put is recorded at fair value at inception in accounts payable and other liabilities on our Consolidated Balance Sheets, and is accreted to the expected put price as interest expense in our Consolidated Statements of Income over the recapture period. The remaining balance of the TCI’s investment is initially recorded in accounts payable and other liabilities on our Consolidated Balance Sheets and will be relieved upon delivery of the tax credit to the TCI, as a reduction in the carrying value of the subject property, net of allocated expenses. Direct and incremental costs incurred in structuring the transaction are deferred and will be recognized as an increase in the cost basis of the subject property upon the recognition of the related tax credit as discussed above.

We periodically evaluate our long-lived assets, primarily consisting of investments in real estate, for impairment indicators. If indicators of impairment are present, we evaluate the carrying value of the related real estate investments in relation to the future undiscounted cash flows of the underlying operations. In performing this evaluation, we consider market conditions and our current intentions with respect to holding or disposing of the asset. We adjust the net book value of leased properties and other long-lived assets to fair value if the sum of the expected future undiscounted cash flows, including sales proceeds, is less than book value. We recognize an impairment loss at the time we make any such determination.

On January 1, 2018, we adopted the provisions of ASC 610-20, Gains and Losses from the Derecognition of Nonfinancial Assets (“ASC 610-20”). In accordance with ASC 610-20, we recognize any gains when we transfer control of a property and when it is probable that we will collect substantially all of the related consideration. We adopted ASC 610-20 using the modified retrospective method and recognized a cumulative effect adjustment to retained earnings of $31.2 million relating to deferred gains on sales of real estate assets in 2015.

Fair value is a market-based measurement, not an entity-specific measurement, and we determine fair value based on the assumptions that we expect market participants would use in pricing the asset or liability. As a basis for considering market participant assumptions in fair value measurements, GAAP establishes a fair value hierarchy that distinguishes between market participant assumptions based on market data obtained from sources independent of the reporting entity (observable inputs that are classified within levels one and two of the hierarchy) and the reporting entity’s own assumptions about market participant assumptions (unobservable inputs classified within level three of the hierarchy).

Level one inputs utilize unadjusted quoted prices for identical assets or liabilities in active markets that we have the ability to access. Level two inputs are inputs other than quoted prices included in level one that are directly or indirectly observable for the asset or liability. Level two inputs may include quoted prices for similar assets and liabilities in active markets and other inputs for the asset or liability that are observable at commonly quoted intervals, such as interest rates, foreign exchange rates and yield curves. Level three inputs are unobservable inputs for the asset or liability, which typically are based on our own assumptions, because there is little, if any, related market activity. If the determination of the fair value measurement is based on inputs from different levels of the hierarchy, the level within which the entire fair value measurement falls is the lowest level input that is significant to the fair value measurement in its entirety. If the volume and level of market activity for an asset or liability has decreased significantly relative to the normal market activity for such asset or liability (or similar assets or liabilities), then transactions or quoted prices may not accurately reflect fair value. In addition, if there is evidence that a transaction for an asset or liability is not orderly, little, if any, weight is placed on that transaction price as an indicator of fair value. Our assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or liability.

Certain of our triple-net leases and most of our MOB and research and innovation center (collectively, “office operations”) leases provide for periodic and determinable increases in base rent. We recognize base rental revenues under these leases on a straight-line basis over the applicable lease term when collectability of substantially all rents is probable. Recognizing rental income on a straight-line basis generally results in recognized revenues during the first half of a lease term exceeding the cash amounts contractually due from our tenants, creating a straight-line rent receivable that is included in other assets on our Consolidated Balance Sheets. At March 31, 2019 and December 31, 2018, this cumulative excess totaled $258.1 million and $250.0 million (net of allowances of $44.6 million, recorded under prior accounting guidance), respectively (excluding properties classified as held for sale).

Certain of our leases provide for periodic increases in base rent only if certain revenue parameters or other substantive contingencies are met. We recognize the increased rental revenue under these leases as the related parameters or contingencies are met, rather than on a straight-line basis over the applicable lease term.

We assess the probability of collecting substantially all rents under our leases based on several factors, including, among other things, payment history, the financial strength of the tenant and any guarantors, the historical operations and operating trends of the property, the historical payment pattern of the tenant, the type of property, the value of the underlying collateral, if any, expected future performance of the property and current economic conditions. If our evaluation of these factors indicates it is probable that we will be unable to collect substantially all rents, we recognize a charge to rental income for the amount we deemed uncollectible. If we change our conclusions regarding the probability of collecting rent payments required by a lease, we may recognize adjustments to rental income in the period we make such change in our conclusions.

We recognize interest income from loans and investments, including discounts and premiums, using the effective interest method when collectability is reasonably assured. We apply the effective interest method on a loan-by-loan basis and recognize discounts and premiums as yield adjustments over the related loan term. We recognize interest income on an impaired loan to the extent our estimate of the fair value of the collateral is sufficient to support the balance of the loan, other receivables and all related accrued interest. When the balance of the loan, other receivables and all related accrued interest is equal to or less than our estimate of the fair value of the collateral, we recognize interest income on a cash basis. We provide a

ASC 842 allows for several practical expedients which permit the following: no reassessment of lease classification or initial direct costs; use of the standard’s effective date as the date of initial application; and no separation of non-lease components from the related lease components and, instead, to account for those components as a single lease component if certain criteria are met. We elected these practical expedients using the effective date as our date of initial application. Therefore, financial information and disclosures under ASC 842 are not provided for periods prior to January 1, 2019.

Upon adoption, we recognized both right of use assets and lease liabilities for leases in which we lease land, real property or other equipment. We now also report revenues and expenses within our triple-net leased properties reportable business segment for real estate taxes and insurance that are escrowed and obligations of the tenants in accordance with their respective leases with us. This reporting will have no impact on our net income. Resident leases within our senior living operations reportable business segment and office leases also contain service elements. We elected the practical expedient to account for our resident and office leases as a single lease component. Also, we now expense certain leasing costs, other than leasing commissions, as they are incurred. Prior to the adoption of ASC 842, GAAP provided for the deferral and amortization of such costs over the applicable lease term. We are continuing to amortize any unamortized deferred lease costs as of December 31, 2018 over their respective lease terms.

As of January 1, 2019, we recognized operating lease assets of $361.7 million on our Consolidated Balance Sheets which includes the present value of minimum lease payments as well as certain existing above and/or below market lease intangible values associated with such leases. Also upon adoption, we recognized operating lease liabilities of $216.9 million on our Consolidated Balance Sheets. The present value of minimum lease payments was calculated on each lease using a discount rate that approximates our incremental borrowing rate primarily adjusted for the length of the individual lease terms. As of the January 1, 2019 adoption date, we utilized discount rates ranging from 6.15% to 7.60% for our ground leases.