Exhibit 99.1

PRESS RELEASE

WELLPOINT REPORTS THIRD QUARTER 2013 RESULTS

Indianapolis, Ind. – October 23, 2013 – WellPoint, Inc. (NYSE: WLP) today announced that third quarter 2013 net income was $656.2 million, or $2.16 per share. These results included net income of $0.06 per share, reflecting a favorable tax election and net investment gains, which were partially offset by expenses related to the early retirement of debt. Net income in the third quarter of 2012 was $691.2 million, or $2.15 per share, and included net income of $0.06 per share, reflecting net investment gains partially offset by acquisition-related costs.

Excluding the items noted in each period, adjusted net income was $2.10 per share in the third quarter of 2013, an increase of 0.5 percent compared with adjusted net income of $2.09 per share in the prior year quarter (refer to page 14 for a reconciliation to the most directly comparable measure calculated in accordance with U.S. generally accepted accounting principles, or “GAAP”).

“I am pleased to report another solid quarter for WellPoint, and a continuation of the positive business momentum we’ve developed across the organization. I am encouraged by the results in both our Commercial and Government segments in this dynamic marketplace. Today we are raising our 2013 membership and EPS guidance, reflecting our strong performance, our continued preparation and the outlook for coming market changes under the Affordable Care Act,” said Joseph Swedish, chief executive officer.

“Our third quarter results were driven primarily by lower than anticipated medical cost experience as well as favorable membership and revenue. Our results were also supported by strong operating cash flow generation,” said Wayne DeVeydt, executive vice president and chief financial officer. “Year-to-date through September 30, 2013, we have repurchased five percent of the shares outstanding at year-end 2012 for $1.2 billion. The Board of Directors increased our share repurchase authorization by $3.5 billion during the third quarter, signaling their confidence in our ability to continue deploying capital appropriately while pursuing growth opportunities across our business segments.”

CONSOLIDATED HIGHLIGHTS

Membership: Medical enrollment totaled 35.5 million members at September 30, 2013, an increase of 2.0 million members, or 6.0 percent, from 33.5 million at September 30, 2012. Medicaid membership increased by more than 2.4 million members due to the acquisition of Amerigroup in the fourth quarter of 2012. The increase in Medicaid enrollment was partially offset by declines of 365,000 and 61,000 members in the Commercial and Medicare businesses, respectively.

Medical enrollment decreased sequentially by 158,000 members, or 0.4 percent, during the third quarter of 2013, primarily in the Medicaid business. This was due to the transition of the Healthy Families program to Medi-Cal in California and the expiration of the Company’s Medicaid contract in Ohio.

Operating Revenue: Operating revenue totaled $17.7 billion in the third quarter of 2013, an increase of $2.6 billion, or 17.2 percent, compared with approximately $15.1 billion in the prior year quarter. The increase was driven by the inclusion of Amerigroup business in the third quarter of 2013. The increase from Amerigroup was partially offset by lower Medicare revenue due to the decline in membership. Operating revenue in the Commercial segment increased slightly compared with the prior year quarter.

Benefit Expense Ratio: The benefit expense ratio was 84.9 percent in the third quarter of 2013, a decrease of 50 basis points from 85.4 percent in the prior year quarter, primarily due to improvements in the Medicare business. The Company also experienced modest declines in the ratios for its Commercial business and its California Medicaid operations. These improvements were partially offset by the inclusion of Amerigroup business in the current year quarter, as this business carries a higher average benefit expense ratio than the consolidated Company average, and increased benefit expense in the cost-plus Federal Employee Program (“FEP”).

Medical claims reserves established at December 31, 2012, developed in-line with the Company’s expectation during the first nine months of 2013.

Medical Cost Trend: The Company now expects that underlying Local Group medical cost trend will be in the range of 6.0 percent, plus or minus 50 basis points, for the full year 2013. Unit cost increases and utilization have been lower than anticipated through the first nine months of 2013.

Days in Claims Payable: Days in Claims Payable (“DCP”) was 40.0 days as of September 30, 2013, a decrease of 0.5 days from 40.5 days as of June 30, 2013. The decline was due primarily to changes in the timing of claims payments between periods.

SG&A Expense Ratio: The SG&A expense ratio was 14.5 percent in the third quarter of 2013, an increase of 80 basis points from 13.7 percent in the third quarter of 2012. The increase reflected higher investment spending during the current year quarter in preparation for coming growth opportunities, and increased incentive compensation expense. These impacts were partially offset by the inclusion of Amerigroup business in the current period, as this business carries a lower average SG&A expense ratio than the consolidated Company average.

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Operating Cash Flow: Operating cash flow totaled approximately $1.4 billion, or 2.1 times net income in the third quarter of 2013, and approximately $2.8 billion, or 1.2 times net income, for the first nine months of 2013.

Share Repurchase Program: During the third quarter of 2013, the Company repurchased nearly 6.5 million shares of its common stock for $554.9 million. Through the first nine months of 2013, the Company repurchased 15.6 million shares of stock, or 5.1 percent of the shares outstanding as of December 31, 2012, for approximately $1.2 billion, or a weighted-average price of $74.86. As of September 30, 2013, the Company had approximately $4.2 billion of Board-approved share repurchase authorization remaining.

Cash Dividend: During the third quarter of 2013, the Company paid a quarterly dividend of $0.375 per share, representing a distribution of cash totaling $111.4 million. On October 22, 2013, the Board of Directors declared a quarterly dividend to shareholders for the fourth quarter of 2013 of $0.375 per share. The fourth quarter dividend is payable on December 23, 2013, to shareholders of record at the close of business on December 9, 2013.

Investment Portfolio & Capital Position: During the third quarter of 2013, the Company recorded net investment gains of $69.2 million pre-tax, consisting of net realized gains from the sale of securities totaling $95.4 million, partially offset by other-than-temporary impairments totaling $26.2 million. During the third quarter of 2012, the Company recorded net investment gains of $50.8 million pre-tax, consisting of net realized gains from the sale of securities totaling $54.6 million, partially offset by other-than-temporary impairments totaling $3.8 million.

As of September 30, 2013, the Company’s net unrealized gain position in the investment portfolio was $726.3 million, consisting of net unrealized gains on equity and fixed maturity securities totaling $464.7 million and $261.6 million, respectively. As of September 30, 2013, cash and investments at the parent company totaled approximately $1.7 billion.

Loss on extinguishment of debt: During the third quarter of 2013, the Company repurchased $1.1 billion aggregate principal amount of outstanding notes. The early retirement of this debt resulted in a pre-tax expense of $145.3 million during the quarter, but is expected to generate interest savings for the Company in the future.

Effective income tax rate: On a GAAP basis, the Company’s effective income tax rate was 25.7 percent in the third quarter of 2013, a decrease of 690 basis points from 32.6 percent in the third quarter of 2012. The decline was driven primarily by a favorable tax election made subsequent to the Amerigroup acquisition, which resulted in a $65 million tax benefit in the third quarter of 2013.

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REPORTABLE SEGMENTS

WellPoint, Inc. has three reportable segments: Commercial & Specialty Business (comprised of the Local Group, National Accounts, Individual and Specialty businesses); Government Business (comprised of the Medicaid and Medicare businesses, National Government Services, and FEP); and Other (comprised of unallocated corporate expenses and certain other businesses that do not meet the quantitative thresholds for separate reportable segment disclosure).

WellPoint, Inc.

Reportable Segment Highlights

(Unaudited)

Commercial & Specialty Business: Operating gain in the Commercial & Specialty Business segment totaled $688.2 million in the third quarter of 2013, a decrease of $164.1 million, or 19.3 percent, from $852.3 million in the third quarter of 2012. This was driven primarily by higher SG&A expense in the current year quarter, reflecting investment spending in preparation for health insurance exchanges and increased compensation expense due to favorable year-to-date operating performance. The increases in SG&A expense were partially offset by a modest decline in the Commercial segment benefit expense ratio.

Government Business: Operating gain in the Government segment was $326.5 million in the third quarter of 2013, an increase of $157.5 million, or 93.2 percent, from $169.0 million in the third quarter of 2012. The increase reflected the inclusion of Amerigroup business in the current year quarter and operating improvements in the Medicare business, including favorable reserve development.

Other: The Company reported an operating loss of $5.3 million in the Other segment for the third quarter of 2013, compared with an operating loss of $17.5 million in the prior year quarter. The change reflected lower unallocated corporate expenses in the current period.

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OUTLOOK

Full Year 2013:

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Basis of Presentation

Conference Call and Webcast

Management will host a conference call and webcast today at 8:30 a.m. Eastern Daylight Time (“EDT”) to discuss the company’s third quarter results and updated outlook. The conference call should be accessed at least 15 minutes prior to the start of the call with the following numbers:

An access code is not required for today’s conference call. The access code for the replay is 272705. The replay will be available from 11 a.m. EDT today until the end of the day on November 6, 2013. The call will also be available through a live webcast at www.wellpoint.com. A webcast replay will be available following the call.

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About WellPoint, Inc.

WellPoint is one of the nation’s leading health benefits companies. We believe that our health connects us all. So we focus on being a valued health partner and delivering quality products and services that give members access to the care they need. With more than 67 million people served by our affiliated companies including approximately 36 million enrolled in our family of health plans, we can make a real difference to meet the needs of our diverse customers. We’re an independent licensee of the Blue Cross and Blue Shield Association. We serve members as the Blue Cross licensee for California; and as the Blue Cross and Blue Shield licensee for Colorado, Connecticut, Georgia, Indiana, Kentucky, Maine, Missouri (excluding 30 counties in the Kansas City area), Nevada, New Hampshire, New York (as the Blue Cross Blue Shield licensee in 10 New York City metropolitan and surrounding counties and as the Blue Cross or Blue Cross Blue Shield licensee in selected upstate counties only), Ohio, Virginia (excluding the Northern Virginia suburbs of Washington, D.C.), and Wisconsin. In most of these service areas, our plans do business as Anthem Blue Cross, Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Georgia and Empire Blue Cross Blue Shield, or Empire Blue Cross (in the New York service areas). We also serve customers in other states through our Amerigroup, CareMore and 1-800 CONTACTS, Inc. subsidiaries. To find out more about us, go to wellpoint.com.

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WellPoint, Inc.

Membership Summary

(Unaudited and in Thousands)

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WellPoint, Inc.

Consolidated Statements of Income

(Unaudited)

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WellPoint, Inc.

Consolidated Statements of Income

(Unaudited)

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WellPoint, Inc.

Consolidated Balance Sheets

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WellPoint, Inc.

Consolidated Statements of Cash Flows

(Unaudited)

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WellPoint, Inc.

Reconciliation of Medical Claims Payable

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WellPoint, Inc.

GAAP Reconciliation

(Unaudited)

WellPoint, Inc. has referenced “Adjusted Net Income” and “Adjusted Net Income Per Share,” non-GAAP measures, in this document. These non-GAAP measures are not intended to be alternatives to any measure calculated in accordance with GAAP. Rather, these non-GAAP measures are intended to aid investors when comparing WellPoint, Inc.’s financial results among periods. A reconciliation of these measures to the most directly comparable measures calculated in accordance with GAAP is presented below.

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SAFE HARBOR STATEMENT UNDER THE PRIVATE SECURITIES

LITIGATION REFORM ACT OF 1995

WellPoint and its representatives may from time to time make written and oral forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 (PSLRA), including statements in this press release, in presentations, filings with the Securities and Exchange Commission, or SEC, reports to shareholders and in meetings with analysts and investors. The projections referenced in this press release are forward-looking and they are intended to be covered by the safe harbor for “forward-looking statements” provided by PSLRA. Words such as “expect(s)”, “feel(s)”, “believe(s)”, “will”, “may”, “anticipate(s)”, “intend”, “estimate”, “project” and similar expressions are intended to identify forward-looking statements, which generally are not historical in nature. These statements include, but are not limited to, financial projections and estimates and their underlying assumptions; statements regarding plans, objectives and expectations with respect to future operations, products and services; and statements regarding future performance. Such statements are subject to certain risks and uncertainties, many of which are difficult to predict and generally beyond our control, that could cause actual results to differ materially from those expressed in, or implied or projected by, the forward-looking information and statements. These risks and uncertainties include: those discussed and identified in our public filings with the SEC; increased government participation in, or regulation or taxation of, health benefits and managed care operations, including, but not limited to, the impact of the Patient Protection and Affordable Care Act and the Health Care and Education Reconciliation Act of 2010; trends in health care costs and utilization rates; our ability to secure sufficient premium rates including regulatory approval for and implementation of such rates; our ability to contract with providers consistent with past practice; our ability to integrate and achieve expected synergies and operating efficiencies in the AMERIGROUP Corporation acquisition within the expected timeframe or at all, as such integration may be more difficult, time consuming or costly than expected, revenues following the transaction may be lower than expected, and operating costs, customer loss and business disruption, including, without limitation, difficulties in maintaining relationships with employees, customers, clients and suppliers, may be greater than expected following the transaction; competitor pricing below market trends of increasing costs; reduced enrollment, as well as a negative change in our health care product mix; risks and uncertainties regarding Medicare and Medicaid programs, including those related to non-compliance with the complex regulations imposed thereon and funding risks with respect to revenue received from participation therein; a downgrade in our financial strength ratings; litigation and investigations targeted at our industry and our ability to resolve litigation and investigations within estimates; medical malpractice or professional liability claims or other risks related to health care services provided by our subsidiaries; risks inherent in selling healthcare products in the consumer retail market; our ability to repurchase shares of our common stock and pay dividends on our common stock due to the adequacy of our cash flow and earnings and other considerations; non-compliance by any party with the Express Scripts, Inc. pharmacy benefit management services agreement, which could result in financial penalties, our inability to meet customer demands, and sanctions imposed by governmental entities, including the Centers for Medicare and Medicaid Services; events that result in negative publicity for us or the health benefits industry; failure to effectively maintain and modernize our information systems and e-business organization and to maintain good relationships with party vendors for information system resources; events that may negatively affect our licenses with the Blue Cross and Blue Shield Association; possible impairment of the value of our intangible assets if future results do not adequately support goodwill and other intangible assets; intense competition to attract and retain employees; unauthorized disclosure of member sensitive or confidential information; changes in the economic and market conditions, as well as regulations that may negatively affect our investment

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portfolios and liquidity; possible restrictions in the payment of dividends by our subsidiaries and increases in required minimum levels of capital and the potential negative effect from our substantial amount of outstanding indebtedness; general risks associated with mergers and acquisitions; various laws and provisions in our governing documents that may prevent or discourage takeovers and business combinations; future public health epidemics and catastrophes; and general economic downturns. Readers are cautioned not to place undue reliance on these forward-looking statements that speak only as of the date hereof. Except to the extent otherwise required by federal securities law, we do not undertake any obligation to republish revised forward-looking statements to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events. Readers are also urged to carefully review and consider the various disclosures in our SEC reports.

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