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- Eli Lilly and Company
About Eli Lilly and Company
Eli Lilly and Company is a global pharmaceutical company headquartered in Indianapolis, Indiana. Founded in 1876 by Colonel Eli Lilly, the company develops, manufactures, and markets prescription medicines across major therapeutic areas including diabetes, obesity, oncology, immunology, neuroscience, cardiovascular disease, bone health, migraine, and other serious health conditions.
Lilly is one of the world’s largest research-based pharmaceutical companies and continues to invest heavily in medicine development, manufacturing capacity, clinical trials, and biotechnology. Its current pipeline is focused particularly on cardiometabolic health, immunology, neuroscience, and cancer, while approximately one-quarter of its workforce is engaged in research and development activities.
Eli Lilly and Company is publicly traded on the New York Stock Exchange under ticker LLY. At the end of 2025, the company employed approximately 50,000 people worldwide, including about 12,000 employees engaged in research and development. Lilly’s principal executive office remains at the Lilly Corporate Center in Indianapolis.
Quick Information
Corporate Phone Number
317-276-2000
This is the official telephone number associated with Lilly’s principal executive offices.
Customer Service Number
For patients, caregivers, medicine questions, product complaints, or adverse-event reporting:
1-800-LillyRx
1-800-545-5979
Lilly directs U.S. patients and caregivers to Lilly Support Services through this number.
Corporate Office Address
Eli Lilly and Company
Lilly Corporate Center
Indianapolis, IN 46285
United States
Headquarters Address
Eli Lilly and Company
Lilly Corporate Center
Indianapolis, IN 46285
United States
This remains the company’s official principal executive office.
Lilly does not publish one universal unsecured Customer Service email for all patient and medicine inquiries.Patients and caregivers can submit questions through the official Lilly Contact Us form.
Investor Relations: Current named contact is Michael Czapar at czapar_michael_c@lilly.com.
Industry
Pharmaceuticals, Biotechnology, Drug Development, Medical Research, Manufacturing and Patient Support Services
Founded
1876
Eli Lilly and Company was founded in Indianapolis by Colonel Eli Lilly.
Number of Employees
Approximately 50,000 employees worldwide
At the end of 2025, Lilly reported approximately 50,000 employees, including about 27,000 located outside the United States.
Research and Development Employees
Approximately 12,000 employees
Lilly reported that roughly 12,000 employees were engaged in research and development activities at the end of 2025.
Corporate Office Hours
Lilly does not prominently publish standard public walk-in hours for the Indianapolis Corporate Center.Visitors, vendors, patients, and business contacts should use the appropriate department before visiting.
Website
Investor Relations
Lilly trades on the New York Stock Exchange under:
LLY
Careers Page
Lilly hires across research, manufacturing, engineering, finance, information technology, medical affairs, legal, HR, sales, marketing, quality, and other professional areas.
Eli Lilly Products & Services
Eli Lilly develops and supplies prescription medicines across diabetes, obesity, oncology, immunology, neuroscience, cardiovascular disease, bone health, dermatology, migraine, and other therapeutic areas. Its U.S. portfolio currently includes dozens of approved medicines, while LillyDirect and Lilly Support Services provide additional patient-access, pharmacy, savings, and support options.
Mounjaro
Mounjaro (tirzepatide) is one of Lilly’s major cardiometabolic medicines. It is available in multiple dose strengths and is included among the current medicines offered through LillyDirect.
Zepbound
Zepbound (tirzepatide) is another major Lilly medicine in the company’s obesity and cardiometabolic portfolio. LillyDirect currently supports access to multiple Zepbound dose strengths.
Trulicity
Trulicity (dulaglutide) is part of Lilly’s diabetes portfolio. Patients can access product information, support resources, and certain pharmacy services through Lilly and LillyDirect.
Humalog
The Humalog family of insulins includes several insulin lispro formulations used within Lilly’s long-standing diabetes business. LillyDirect currently lists multiple Humalog products and presentations.
Humulin
The Humulin family of insulins includes several human insulin formulations and concentrations. These products remain part of Lilly’s diabetes and insulin portfolio.
Lyumjev
Lyumjev (insulin lispro-aabc) is a Lilly insulin product offered in multiple strengths. It forms part of the company’s broader diabetes and insulin treatment portfolio.
Basaglar
Basaglar (insulin glargine) is another Lilly diabetes medicine. Lilly’s current U.S. product directory lists it among the company’s approved diabetes products.
Kisunla
Kisunla (donanemab-azbt) is part of Lilly’s neuroscience and Alzheimer’s disease portfolio. Lilly maintains dedicated patient, healthcare professional, and media resources for the medicine.
Emgality
Emgality is part of Lilly’s neuroscience and migraine portfolio. Lilly provides patient support and savings resources for eligible patients through its support programs.
Ebglyss
Ebglyss (lebrikizumab-lbkz) is part of Lilly’s dermatology and immunology portfolio. The company provides insurance, savings, and patient-support resources through Lilly Support Services.
Taltz
Taltz (ixekizumab) is part of Lilly’s immunology portfolio. Support programs include insurance-access assistance, savings resources, and specialty-pharmacy coordination for eligible patients.
Omvoh
Omvoh (mirikizumab-mrkz) is one of Lilly’s immunology medicines. Lilly Support Services provides eligible patients with savings, authorization, reimbursement, and specialty-pharmacy support.
Olumiant
Olumiant (baricitinib) is another product in Lilly’s immunology portfolio. Patients can use Lilly Support Services for savings, insurance-navigation, and specialty-pharmacy assistance.
Verzenio
Verzenio (abemaciclib) is one of Lilly’s oncology medicines. Lilly provides patient-support and savings resources designed to help eligible patients navigate access and treatment logistics.
Jaypirca
Jaypirca (pirtobrutinib) is part of Lilly’s oncology portfolio. Support programs include prescription-access guidance, specialty-pharmacy resources, savings assistance, and dose-related support where applicable.
Cyramza
Cyramza (ramucirumab) is a Lilly oncology medicine. Lilly Support Services for Oncology provides benefits verification, prior-authorization assistance, specialty-pharmacy coordination, and financial-support information.
Alimta
Alimta (pemetrexed) remains listed in Lilly’s current U.S. oncology product directory. Product information and approved prescribing resources are available through Lilly’s healthcare professional website.
LillyDirect
LillyDirect is Lilly’s direct pharmacy experience for selected Lilly medicines. It helps patients navigate prescription fulfillment, insurance, savings options, checkout, delivery, and retail pickup through participating dispensing pharmacies.
Lilly Support Services
Lilly Support Services assists patients with medicine-related questions, insurance navigation, financial-support resources, prior authorization, and other product-specific support. The main U.S. number is 1-800-545-5979.
Lilly Cares Foundation
The Lilly Cares Foundation is a separate nonprofit organization that provides donated Lilly medicines at no cost to certain qualifying patients who meet applicable eligibility requirements. Lilly directs potentially eligible uninsured or limited-income patients to this program.
Clinical Research and Drug Development
Lilly operates a major global research and development organization focused on cardiometabolic health, cancer, neuroscience, and immunology. Its clinical pipeline includes new molecular entities, new indications for existing medicines, and late-stage investigational therapies.
Eli Lilly Corporate Phone Numbers
Lilly uses separate contacts for corporate, patient, medical, pharmacy, oncology, Investor Relations, and product-support inquiries.
Corporate Phone Number
317-276-2000
This is the official Indianapolis headquarters number.
Corporate Headquarters Number
317-276-2000
Headquarters Number
317-276-2000
Corporate Office Number
317-276-2000
Customer Service Number
For patients and caregivers:
1-800-545-5979
Lilly Support Services Number
1-800-LillyRx
1-800-545-5979
This number is used for medicine questions, patient support, product complaints, and adverse-event reporting.
Lilly Answers Center Number
1-800-545-5979
Healthcare professionals and patients can use this number for medical or product-related questions.
Adverse Event Reporting Number
1-800-545-5979
Lilly instructs customers to report adverse experiences or product issues involving its medicines or devices through this number.
Product Complaint Number
1-800-545-5979
This number is also used for product-quality or suspected-product complaints.
Oncology Support Number
1-800-545-5979
Lilly Support Services for Oncology provides access, prior-authorization, reimbursement, and specialty-pharmacy support.
LillyDirect Customer Care Number
1-844-559-3471
Also written as:
1-844-LLYDIR1
This number assists with LillyDirect orders, prescription status, shipping, savings, insurance changes, and prescription-management questions.
LillyDirect Prescription Number for Providers
1-855-723-4672
Healthcare providers can use this number when submitting prescriptions to LillyDirect Pharmacy by phone.
Toll-Free Number
Primary patient support:
1-800-545-5979
LillyDirect:
1-844-559-3471
Sales Number
Lilly does not publish one universal consumer Sales Department telephone number.
Healthcare professionals can request contact from a Lilly sales representative through the company’s online HCP tools.
Billing Number
Lilly does not publish one universal public Billing Department phone number.
Billing, savings, pharmacy, and reimbursement questions should be directed through the appropriate Lilly Support Services or LillyDirect channel.
Regional Office Number
Lilly operates facilities worldwide, but there is no single universal regional-office number.
Branch Office Number
Individual Lilly research, manufacturing, and commercial sites may maintain separate contacts, but these are not consumer retail branches.
Local Office Number
Indianapolis Corporate Center:
317-276-2000
International Number
Lilly operates country-specific websites and support teams worldwide.Customers outside the United States should use their local Lilly country website for local medical and Customer Service contacts.
Emergency / After-Hours Number
Lilly does not publish one universal corporate after-hours emergency number.For urgent medical emergencies, patients should contact local emergency services or their healthcare provider.
Investor Relations Number
Current 2026 investor contact:
317-617-0983
Michael Czapar
Media / Press Number
Current 2026 media contact:
317-416-4363
Ashley Hennessey
Media Asset Email
Lilly publishes this email for certain media asset requests.
Human Resources Number
Lilly does not publish one universal applicant HR telephone number.
Careers:
Reservations / Booking Number
Not applicable.Eli Lilly and Company is a pharmaceutical and biotechnology company.
How to Reach a Real Person at Eli Lilly
Patients and caregivers who need assistance with a Lilly medicine should call 1-800-545-5979. Lilly uses this line for medicine questions, patient support, adverse-event reporting, and product-quality complaints. Customers should have the medicine name, product information, prescription details, pharmacy information, and any relevant lot or packaging information available when calling.
For LillyDirect orders, customers should call 1-844-559-3471. The LillyDirect team can assist with prescription status, insurance changes, savings options, shipping, pharmacy coordination, and other order-related concerns. Corporate matters can be directed to 317-276-2000, while healthcare professionals can also use Lilly’s HCP support channels for medical and scientific questions.
Eli Lilly Headquarters & Corporate Office Address
Eli Lilly and Company’s current principal executive office is:
Eli Lilly and Company
Lilly Corporate Center
Indianapolis, IN 46285
United States
Corporate Phone: 317-276-2000
Current corporate and SEC materials continue to identify the Lilly Corporate Center in Indianapolis as the company’s principal executive headquarters.
Indianapolis Corporate Headquarters
Eli Lilly and Company
Lilly Corporate Center
Indianapolis, IN 46285
United States
This location supports executive leadership, finance, legal, corporate strategy, research oversight, communications, commercial functions, human resources, and other global operations.
Current CEO
David A. Ricks
David A. Ricks serves as Chairman and Chief Executive Officer of Eli Lilly and Company.
Current Employee Scale
At the end of 2025, Lilly employed approximately:
50,000 people worldwide
including approximately:
27,000 employees outside the United States.
Research and Development Workforce
Approximately:
12,000 Lilly employees
were engaged in research and development activities at the end of 2025.
Global Research Focus
Lilly’s current research strategy concentrates heavily on:
Cardiometabolic Health
Immunology
Neuroscience
Cancer
The company’s active development pipeline includes approved products seeking new indications as well as new investigational medicines.
LillyDirect Pharmacy Address
Current LillyDirect provider instructions identify:
LillyDirect Pharmacy
1555 S Harding St
Suite 171-B68
Indianapolis, IN 46221
This is a pharmacy-operation address, not Lilly’s corporate headquarters.
Stock Listing
Eli Lilly and Company trades on:
New York Stock Exchange
Ticker:
LLY.
How to File a Complaint Against Eli Lilly and Company
Customers who have a complaint involving a Lilly medicine, product quality, packaging, side effects, patient-support program, LillyDirect order, savings program, pharmacy coordination, or another Lilly service should collect all relevant information before contacting the company. Keep the product name, prescription information, lot number where available, pharmacy details, receipt or order information, dates, photographs, and previous case numbers. Medical emergencies should be handled through a healthcare professional or emergency service rather than through a routine corporate complaint process.
Step 1: Contact Lilly Support Services
Begin by calling 1-800-545-5979 and explain the issue clearly. Provide the medicine or device name, relevant product information, date of the problem, pharmacy or healthcare-provider details, and any packaging or lot information available. Lilly specifically instructs customers to report adverse experiences and issues involving its medicines or devices promptly. Ask for a case or reference number where available. Keep notes of the representative’s name and any follow-up instructions provided.
Step 2: Use the Appropriate Product or Pharmacy Support Channel
If the complaint involves LillyDirect, call 1-844-559-3471 and provide the prescription, order, shipment, or checkout details. Oncology patients and healthcare professionals can use Lilly Support Services for Oncology through 1-800-545-5979, while other medicines can have additional specialized support programs. Explain any previous contact with Lilly and provide the existing case information. Keep copies of order messages, pharmacy communications, receipts, and support records.
Step 3: Report Product Quality or Safety Concerns
If the complaint concerns a damaged, suspected counterfeit, defective, mislabeled, or otherwise questionable Lilly medicine, report it directly to Lilly Support Services at 1-800-545-5979. Keep the product and packaging unless a healthcare professional or safety authority advises otherwise, and record the lot number, expiration date, pharmacy source, and purchase information. Lilly also encourages reporting suspected counterfeit medicines to appropriate local authorities and state pharmacy regulators.
Step 4: Send a Formal Corporate Complaint
For a serious unresolved corporate issue, written correspondence can be sent to Eli Lilly and Company, Lilly Corporate Center, Indianapolis, IN 46285. Include your full contact information, relevant Lilly product or service, case numbers, important dates, and a clear chronological explanation of the issue. Attach copies rather than originals of receipts, pharmacy records, photographs, or previous correspondence. Avoid sending unnecessary medical or financial information unless it is specifically required for the complaint. Keep proof of mailing or delivery.
Step 5: Use the Appropriate External Complaint Process if Necessary
If a serious medicine or product-safety complaint remains unresolved, the appropriate external process depends on the issue. Medication safety and quality matters may involve the U.S. Food and Drug Administration, pharmacy-related concerns may involve a state Board of Pharmacy, and consumer or billing issues may fall under other state or federal agencies. Suspected counterfeit products can also be reported to law enforcement or pharmacy regulators. Keep product packaging, lot information, medical records where relevant, complaint case numbers, and Lilly responses before escalating externally.
