Exhibit 99.3

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

Introduction

Digital Transformation Opportunities Corp., a Delaware corporation (“DTOC”) and American Oncology Network, LLC, a Delaware limited liability company (the “Company” or “AON”) are providing the following unaudited pro forma condensed combined financial information to aid you in your analysis of the financial aspects of the Business Combination, as defined within this Form 8-K. The unaudited pro forma condensed combined financial information has been prepared in accordance with Article 11 of Regulation S-X and should be read in conjunction with the accompanying notes.

The following unaudited pro forma condensed combined balance sheet as of June 30, 2023, combines the unaudited balance sheet of DTOC as of June 30, 2023, with the unaudited consolidated balance sheet of the Company as of June 30, 2023, giving effect to the Business Combination as if it had been consummated on June 30, 2023.

The unaudited pro forma condensed combined statement of operations for the six months ended June 30, 2023, combines the unaudited statement of operations of DTOC for the six months ended June 30, 2023, with the unaudited consolidated statement of operations of the Company for the six months ended June 30, 2023. The unaudited pro forma condensed combined statement of operations for the year ended December 31, 2022, combines the audited statement of operations of DTOC for the year ended December 31, 2022, with the audited consolidated statement of operations of the Company for the year ended December 31, 2022. The unaudited pro forma condensed combined statements of operations give effect to the Business Combination as if it had been consummated on January 1, 2022, the beginning of the earliest period presented.

The unaudited pro forma condensed combined financial information was derived from, and should be read in conjunction with, the following historical financial statements and the accompanying notes:

The foregoing historical financial statements have been prepared in accordance with GAAP. The unaudited pro forma condensed combined financial information has been prepared based on the aforementioned historical financial statements and the assumptions and adjustments as described in the notes to the unaudited pro forma condensed combined financial information. The pro forma adjustments reflect transaction accounting adjustments related to the Business Combination, which is discussed in further detail below. The unaudited pro forma condensed combined financial statements are presented for illustrative purposes only and do not purport to represent DTOC’s consolidated results of operations or consolidated financial position that would actually have occurred had the Business Combination been consummated on the dates assumed or to project DTOC’s consolidated results of operations or consolidated financial position for any future date or period.

The unaudited pro forma condensed combined financial information should also be read together with “AON Management’s Discussion and Analysis of Financial Condition and Results of Operations,” and other financial information included elsewhere in this Form 8-K.

Description of the Business Combination

As previously disclosed, Digital Transformation Opportunities Corp., American Oncology Network, LLC, GEF AON Holdings Corp. (“AON Class C Preferred Investor”), and DTOC Merger Sub, Inc., a direct, wholly owned subsidiary of DTOC (“Merger Sub”) entered into a Business Combination Agreement (the “Business Combination Agreement”), dated as of June 14, 2023 (which further amended and restated the Business Combination Agreement entered into by DTOC and AON as of October 5, 2022, and amended and restated on January 6, 2023, and April 27, 2023), pursuant to which, among other transactions, on September 20, 2023 (the “Closing Date”), DTOC and AON undertook a series of transactions (the “Business Combination”) resulting in the organization of the combined post-business combination company as an umbrella partnership C corporation, in which substantially all of the assets and the business of the combined company are held by AON, and DTOC became a member of AON. In connection with the closing of the Business Combination, DTOC changed its name to “American Oncology Network, Inc.” (sometimes referred to herein as “New AON”).

On September 19, 2023, DTOC held a special meeting of its stockholders (the “Special Meeting”) in connection with the Business Combination. At the Special Meeting, DTOC stockholders voted to approve the Business Combination with AON and related proposals. Prior to the Special Meeting, a total of 1,699,558 shares of common stock, par value $0.0001, of DTOC (“DTOC Common Stock”) were presented for redemption for cash at a price of approximately $10.50 per share in connection with the Special Meeting.

As a result of, and in connection with, the Closing, among other things, (i) AON amended and restated its operating agreement (the “Amended and Restated AON LLC Agreement”) to reclassify its existing Class A units, Class A-1 units and Class B units into a single class of AON common units that were exchanged on a one-to-one basis for shares of New AON Class A common stock (“New AON Class A Common Stock”) and its existing AON Class C units into AON Series A preferred units; (ii) AON converted profit pool units of certain of AON’s subsidiaries into an equal number of AON common units and shares of New AON Class B common stock (“New AON Class B Common Stock”), which together are exchangeable into shares of New AON Class A Common Stock (together with the New AON Class B Common Stock, the “New AON Common Stock”); (iii) New AON amended and restated its charter (the “Charter”) to provide for (a) the conversion of all existing shares of DTOC Class B common stock into shares of New AON Class A Common Stock on a one-to-one basis, (b) amendment of the terms of New AON Class B Common Stock to provide holders voting rights but no economic rights and (c) designation of a new series of New AON preferred stock as Series A convertible preferred stock (the “New AON Series A Preferred Stock”) with such rights and preferences as provided for in the certificate of designation of the New Aon Series A Preferred Stock (the “New AON Series A Certificate of Designation”); and (iv) among other things, (a) AON issued common units to New AON in exchange for a combination of cash and shares of New AON Class B Common Stock and warrants to acquire shares of New AON Class B Common Stock (the “Class B Prefunded Warrants”), (b) New AON was admitted as a member of AON, (c) AON distributed shares of New AON Class B common stock or Class B Prefunded Warrants, as applicable, to AON equityholders, (d) New AON reserved a specified number of additional shares of New AON Class A Common Stock after the Closing for issuance to eligible participants, (e) Merger Sub merged with and into the AON Class C Preferred Investor whereby the separate existence of Merger Sub ceased and New AON issued a number of shares of New AON Series A Preferred Stock equal to the number of AON Series A preferred units held by the AON Class C Preferred Investor to AEA Growth Management LP, the parent of AON Class C Preferred Investor (“AEA Growth”) in exchange for all the shares of common stock held by AEA Growth in the AON Class C Preferred Investor (the “First Step”), (f) promptly after the First Step, the AON Class C Preferred Investor merged with and into New AON whereby the separate existence of the AON Class C Preferred Investor ceased and New AON held all the AON Series A preferred units and (g) from and after the Closing (but subject to lock-up restrictions), the AON common equityholders (other than New AON) will have the right (but not the obligation) to exchange AON common units together with an equal number of shares of New AON Class B Common Stock (whether held directly or indirectly through Class B Prefunded Warrants) for shares of New AON Class A Common Stock.

In addition, in connection with the Closing of the Business Combination, DTOC completed the offer to the holders of AON Class B-1 units to exchange their AON Class B-1 units for such number of newly issued shares of New AON Class A Common Stock equal to the ratio set forth in the Business Combination Agreement (such offer, the “Exchange Offer”). DTOC and AON solicited consents from the holders of AON Class B-1 units to make certain amendments to the terms of the awards and the unit grant agreements pursuant to which the AON Class B-1 units were granted, which provided for the automatic exchange, as of immediately prior to the adoption of the Amended and Restated AON LLC Agreement, of all outstanding AON Class B-1 units into shares of New AON Class A Common Stock (collectively, the “Proposed Amendments”). The requisite number of holders of Class B-1 units provided their consent to the Proposed Amendments, and as a result, in connection with the closing of the Business Combination, all AON Class B-1 units were exchanged for an aggregate of 1,047,343 shares of New AON Class A Common Stock.

Accounting Treatment for the Business Combination

As the Company does not meet any of the characteristics of a VIE under ASC 810, the Transaction was evaluated under ASC 805, Business Combinations. Notwithstanding the legal form of the Business Combination pursuant to the Business Combination Agreement, the Business Combination will be accounted for as a reverse recapitalization in accordance with GAAP. Under this method of accounting, DTOC will

be treated as the acquired company and AON will be treated as the acquirer for financial statement reporting purposes. The Company has been determined to be the accounting acquirer based on, in summary, an evaluation of the following primary facts and circumstances:

Accordingly, for accounting purposes, the financial statements of the post-combination entity will represent a continuation of the financial statements of the Company with the acquisition being treated as the equivalent of the Company issuing stock for the net assets of DTOC, accompanied by a recapitalization. The net assets of DTOC will be stated at historical cost, with no goodwill or other intangible assets recorded.

Accounting for the Earnout Shares

Following the Closing and for five years thereafter, the Sponsor has agreed to subject 35% of the shares of New AON common stock held by it as of the Closing (the “Sponsor Earnout Shares”) to the following vesting and forfeiture provisions:

As the Business Combination will be accounted for as a reverse recapitalization, the issuance of the Sponsor Earnout Shares to the Company’s existing shareholders will be accounted for as an equity transaction. The accounting for the Sponsor Earnout Shares was evaluated under ASC Topic 480, Distinguishing Liabilities from Equity, and ASC Subtopic 815-40, Derivatives and Hedging — Contracts in Entity’s Own Equity, to determine if the Sponsor Earnout Shares should be classified as a liability or within equity. As part of that analysis, it was determined that the Sponsor Earnout Shares are

freestanding from the related shares of common stock, do not meet the criteria within ASC 480 to be classified as a liability, and meet the criteria in ASC 815-40 to be considered indexed to the post-combination

entity’s common stock and classified within equity. Therefore, an adjustment to recognize the Sponsor Earnout Shares would have no net impact on any financial statement line item as it would simultaneously increase and decrease additional paid-in capital. Thus, no adjustment has been applied to the unaudited pro forma combined financial information related to the Sponsor Earnout Shares.

Basis of Pro Forma Presentation

The historical financial information has been adjusted to give pro forma effect to the transaction accounting required for the Business Combination. The unaudited pro forma condensed combined financial information reflects the application of transaction accounting adjustments and are based upon available information and certain assumptions, described in the accompanying notes hereto, that management believes are reasonable under the circumstances.

Upon the consummation of the Business Combination, the shares outstanding as presented in the unaudited pro forma condensed combined financial statements include the following:

Immediately after giving effect to the Business Combination, there were (i) 9,532,354 issued and outstanding shares of New AON Class A Common Stock, which includes common stock held by DTOC stockholders and Digital Transformation Sponsor LLC (the “Sponsor”) (including those shares subject to vesting and forfeiture pursuant to the Sponsor Support Agreement), but does not include shares which may be issued under the Incentive Equity Plan and (ii) 25,109,551 issued and outstanding shares of New AON Class B Common Stock, which excludes the Class B Warrants.

The following percentages exclude the Class B Warrants and include the Earnout Shares in the calculations. As of the Closing Date, (i) AON’s equityholders (not including AEA Growth) beneficially owned approximately 63.3% of the outstanding shares of New AON Common Stock, (ii) the public stockholders of DTOC immediately prior to the Closing beneficially owned approximately 0.4% of the outstanding shares of New AON Common Stock, (iii) the Sponsor and the DTOC officers and directors immediately prior to the Closing Date beneficially owned approximately 20.2% of the outstanding shares of New AON Common Stock, and (iv) AEA Growth beneficially owned approximately 16.1% of the outstanding shares of New AON Common Stock (based upon conversion of the New AON Series A Preferred Stock at an initial conversion price of $10.00 per share).

Assumptions and estimates underlying the unaudited pro forma adjustments set forth in the unaudited pro forma condensed combined financial statements are described in the accompanying notes. The unaudited pro forma condensed combined financial statements have been presented for illustrative purposes only and are not necessarily indicative of the operating results and financial position that would have been achieved had the Business Combination and related transactions occurred on the dates indicated. Further, the unaudited pro forma condensed combined financial statements do not purport to project the future operating results or financial position of DTOC following the completion of the Business Combination and related transactions. The unaudited pro forma adjustments represent management’s estimates based on information available as of the date of these unaudited pro forma condensed combined financial statements and are subject to change as additional information becomes available and analyses are performed. DTOC and the Company have not had any historical relationship prior to the Business Combination. Accordingly, no pro forma adjustments were required to eliminate activities between the companies.

Unaudited Pro Forma Condensed Combined Balance Sheet

As of June 30, 2023

(amounts in thousands, except share amounts)

Unaudited Pro Forma Condensed Combined Statement of Operations

For the six months ended June 30, 2023

(amounts in thousands, except per share amounts)

Unaudited Pro Forma Condensed Combined Statement of Operations

For the year ended December 31, 2022

(amounts in thousands, except per share amounts)

NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

The pro forma adjustments have been prepared as if the Business Combination had been consummated on June 30, 2023, in the case of the unaudited pro forma condensed combined balance sheet, and, in the case of the unaudited pro forma condensed combined statement of operations, as if the Business Combination had been consummated on January 1, 2022, the beginning of the earliest period presented in the unaudited pro forma condensed combined statement of operations.

The unaudited pro forma condensed combined financial information has been prepared assuming the following methods of accounting in accordance with GAAP.

The Business Combination will be accounted for as a reverse recapitalization in accordance with GAAP. Accordingly, for accounting purposes, the financial statements of the post-combination entity will represent a continuation of the financial statements of the Company with the acquisition being treated as the equivalent of the Company issuing stock for the net assets of DTOC, accompanied by a recapitalization.

The net assets of DTOC will be stated at historical cost, with no goodwill or other intangible assets recorded.

The pro forma adjustments represent management’s estimates based on information available as of the date of this Form 8-K and are subject to change as additional information becomes available and additional analyses are performed. Management considers this basis of presentation to be reasonable under the circumstances.

One-time direct and incremental transaction costs anticipated to be incurred prior to, or concurrent with, the Closing are reflected in the unaudited pro forma condensed combined balance sheet as a direct reduction to the post-combination entity’s additional paid-in capital and are assumed to be cash settled.

The adjustments included in the unaudited pro forma condensed combined balance sheet as of June 30, 2023, are as follows:

New AON has preliminarily evaluated the accounting for the New AON Series A Preferred Stock in accordance with the requirements of ASC 480-10-S99. For purposes of the unaudited pro forma condensed combined financial information, the Series A Investment is classified as mezzanine equity. However, the evaluation and finalization of accounting conclusions including, but not limited to, classification of the instrument, impact to earnings per share, analysis of any potential embedded derivatives and the impact to other preferred/equity units are ongoing and subject to change.

Of the total $4.6 million, transaction expenses of $4.5 million are expected to be expensed as incurred, as reflected in adjustment (ee) in the income statement for the year ended December 31, 2022. DTOC transaction expenses of $3.9 million were recorded in accumulated deficit and subsequently presented in APIC, to reflect the elimination of DTOC’s historical accumulated deficit for the expenses incurred and $0.6 million of AON transaction expenses were presented in accumulated earnings, to reflect the expense incurred. The remaining $0.1 million in costs that were direct and incremental to the equity raise were netted against the proceeds of the Business Combination.

The recapitalization of the Company’s Class A, Class A-1, and Class B shares included in accumulated paid in capital is calculated as follows:

New AON is currently evaluating the requirements of ASC 480-10-S99 regarding permanent versus mezzanine equity presentation of the noncontrolling interest. For purposes of the unaudited pro forma condensed combined financial information, noncontrolling interest is classified as permanent equity. However, the evaluation and finalization of accounting conclusions regarding the classification are ongoing and subject to change in accordance with the terms contained within the final agreement.

Temporary differences, resulting from differences including our investment in AON and a valuation allowance, resulted in a pro forma net deferred tax asset of $0.8 million as of June 30, 2023.

In the unaudited pro forma condensed combined statement of operations for the six months ended June 30, 2023, $0.7 million and $1.8 million of historical Digital Transformation Corp. costs have been reclassified from “Formation and operating costs” to “General and administrative expenses” and “Transaction related expenses”, respectively, to align financial statement descriptions.

The adjustments included in the unaudited pro forma condensed combined statement of operations for the six months ended June 30, 2023, are as follows:

In the unaudited pro forma condensed combined statement of operations for the year ended December 31, 2022, $0.3 million and $2.0 million of historical Digital Transformation Corp. costs have been reclassified from “Formation and operating costs” to “General and administrative expenses” and “Transaction related expenses,” respectively, to align financial statement descriptions.

The adjustments included in the unaudited pro forma condensed combined statement of operations for the year ended December 31, 2022, are as follows:

The pro forma weighted average shares calculations have been performed for the six months ended June 30, 2023 and the year ended December 31, 2022 using the historical weighted average shares outstanding, and the issuance of additional shares in connection with the Business Combination, assuming the transaction occurred on January 1, 2022. As the Business Combination is being reflected as if it had occurred at the beginning of the periods presented, the calculation of weighted average share outstanding for both basic and diluted earnings per share assumes that the shares issuable relating to the Business Combination have been outstanding for the entire periods presented.