Privacy Policy, KVKK, Cookie Policy and Terms of Use

Last updated: 4 September 2026

This document has been prepared to inform visitors of drilkerzan.com about the protection of personal data, the use of cookies, website terms of use, and the use of medical information provided on this website.

1. Data Controller

Within the scope of the Turkish Personal Data Protection Law No. 6698 (“KVKK”), the data controller is:

Dr. İlker Zan
Cardiovascular Surgeon – Phlebologist
Address: Şirinyalı Mah. İsmet Gökşen Cad. Savaş Apt. No:65/4, Muratpaşa / Antalya, Türkiye
Phone: +90 546 530 40 50
Email: bilgi@drilkerzan.com
Website: drilkerzan.com

2. Personal Data That May Be Processed

Depending on how you use the website and contact the clinic, the following types of personal data may be processed:

  • Name and surname
  • Telephone number
  • Email address
  • Information provided in appointment or contact requests
  • IP address and connection information
  • Browser, device, and session information
  • Website usage and traffic information
  • Language and user preferences
  • Information voluntarily provided by email, contact forms, or WhatsApp
  • Health-related information voluntarily provided by the user

Health data is considered sensitive personal data. Users are advised to provide health information only when necessary.

3. Purposes of Processing Personal Data

Personal data may be processed for purposes such as:

  • Responding to contact requests
  • Evaluating appointment requests
  • Communicating with patients
  • Planning healthcare services
  • Ensuring website security
  • Detecting technical problems
  • Improving website performance and user experience
  • Fulfilling legal obligations
  • Responding to lawful requests from authorized public institutions
  • Managing information security processes

Personal data is processed in a manner that is relevant, limited, and proportionate to the purpose for which it is collected.

4. Legal Grounds for Processing

Personal data is processed in accordance with KVKK and other applicable legislation.

Depending on the relevant processing activity, the legal basis may include:

  • Processing expressly permitted by law
  • Compliance with a legal obligation
  • Processing necessary for the establishment or performance of a contract
  • Establishment, exercise, or protection of a legal right
  • Legitimate interests of the data controller, provided that fundamental rights and freedoms are not adversely affected
  • Explicit consent where legally required

Explicit consent is not used as a mandatory condition where another lawful legal basis applies.

5. Health Data

Health information is classified as sensitive personal data.

Health data may be processed where permitted by applicable legislation for purposes such as medical examination, diagnosis, treatment, healthcare planning, and follow-up by healthcare professionals who are subject to confidentiality obligations.

Contact forms, email, and WhatsApp should not be used for emergencies.

Users are advised not to send detailed medical reports or unnecessary sensitive health information during the initial contact stage unless required.

6. Sharing of Personal Data

Personal data may be shared, where legally permitted and necessary, with:

  • Authorized public institutions
  • Legally authorized authorities
  • Hosting and technical infrastructure providers
  • Email and communication service providers
  • Information technology and security service providers
  • Legal, financial, or technical advisers

Any transfer is carried out in accordance with the principles of confidentiality, data minimization, and applicable legislation.

7. International Data Transfers

Some technologies and third-party services used on this website may process or store data on servers located outside Türkiye.

Where international data transfers occur, they are carried out in accordance with the applicable provisions of KVKK regarding cross-border transfers and the required legal safeguards.

Third-party services such as Google may also be subject to their own privacy policies and data processing terms.

8. Data Retention

Personal data is retained:

  • For the period required by applicable legislation, or
  • For as long as necessary for the purpose for which the data was processed

When the legal retention period expires or the processing purpose no longer exists, personal data is deleted, destroyed, or anonymized in accordance with applicable law.

9. Data Security

Appropriate technical and administrative measures are taken to help prevent:

  • Unlawful processing
  • Unauthorized access
  • Loss of personal data
  • Unauthorized modification
  • Unauthorized disclosure

However, no method of data transmission over the internet can be guaranteed to be completely secure.

10. Your Rights Under KVKK

To the extent applicable, data subjects may have the right to:

  • Learn whether their personal data is being processed
  • Request information if their personal data has been processed
  • Learn the purpose of processing and whether the data is used in accordance with that purpose
  • Learn the third parties to whom personal data has been transferred
  • Request correction of incomplete or inaccurate data
  • Request deletion or destruction where the legal conditions are met
  • Request notification of correction, deletion, or destruction to third parties where applicable
  • Exercise other rights provided under applicable legislation

Requests may be submitted to bilgi@drilkerzan.com or in writing to the clinic address stated above.

Requests will be evaluated in accordance with the procedures and time limits specified in applicable legislation.

Cookie Policy

11. What Are Cookies?

Cookies are small data files that may be stored on your browser or device when you visit a website.

They may be used to:

  • Enable core website functions
  • Remember preferences
  • Improve security
  • Measure site performance
  • Analyze website usage
  • Support advertising or marketing functions where consent has been provided

12. Types of Cookies That May Be Used

Strictly Necessary Cookies

These cookies are required for the essential operation and security of the website.

They may be used without consent where permitted by law.

Functional Cookies

These cookies may remember user preferences such as language, display settings, or selected functions.

Where a cookie is strictly necessary to provide a function specifically requested by the user, separate consent may not be required.

Analytics and Performance Cookies

These cookies may help us understand how visitors use the website, such as which pages are viewed and how the website performs.

Analytics cookies that require consent will not be activated before consent is obtained.

Advertising and Marketing Cookies

These cookies may be used to measure advertising performance, analyze user behavior, or provide personalized advertising.

Where required by law, these cookies will only be activated after the user has provided prior consent.

13. Third-Party Services

Depending on the website configuration, third-party services may include:

  • Google services
  • Google Analytics
  • Google Maps
  • YouTube
  • WhatsApp
  • Social media platforms
  • Hosting and security providers

Some third-party providers may use their own cookies or similar technologies.

Their data processing practices may be subject to their own privacy policies.

14. Managing Cookie Preferences

Where consent is required for non-essential cookies, users should be able to:

  • Accept all cookies
  • Reject non-essential cookies
  • Manage cookie categories individually
  • Change or withdraw previous consent

Cookies may also be controlled or deleted through browser settings.

Rejecting non-essential cookies does not prevent access to the basic informational content of the website.

Website Terms of Use

15. Medical Information and Disclaimer

The health information provided on drilkerzan.com is for general informational purposes only.

Website content does not replace:

  • A medical examination
  • Individual diagnosis
  • Color Doppler ultrasound assessment
  • Professional medical advice
  • An individualized treatment plan

No information on this website should be used alone to make a diagnosis or treatment decision.

The description of a treatment method on this website does not mean that the method is suitable for every patient.

Treatment decisions must be made individually after appropriate clinical assessment.

16. Emergencies

This website, contact form, email address, and WhatsApp service are not emergency medical services.

In the event of sudden shortness of breath, chest pain, marked unilateral leg swelling, severe bleeding, or another urgent health problem, users should seek appropriate emergency medical care rather than waiting for a response through the website.

17. Online Communication Does Not Establish a Doctor-Patient Relationship

Visiting the website, sending an email, contacting the clinic through WhatsApp, or asking a general health question does not by itself establish a formal doctor-patient relationship or treatment agreement.

Medical assessment can only be provided when the necessary clinical requirements are met.

18. No Guarantee of Treatment Results

Every patient has different anatomy, disease severity, general health status, and response to treatment.

Therefore, no guarantee is made regarding:

  • A specific treatment result
  • Recovery time
  • Cosmetic outcome
  • Permanent symptom relief
  • Non-recurrence of varicose veins

The suitability and expected outcome of treatment must be assessed individually.

19. Accuracy and Updates

We aim to keep the medical and other information on this website accurate and current.

However, scientific evidence, clinical guidelines, medical products, and treatment methods may change over time.

Website content may therefore be updated without prior notice.

20. External Links

This website may contain links to third-party websites or platforms.

These links are provided for convenience.

Dr. İlker Zan does not control and is not responsible for the content, security, privacy policies, or data processing practices of third-party websites.

21. Intellectual Property Rights

Unless otherwise stated, the content of drilkerzan.com, including:

  • Written content
  • Original medical information
  • Photographs
  • Graphics
  • Videos
  • Logos
  • Design elements

is protected by applicable intellectual property laws and rights.

Content may not be reproduced, commercially used, republished, or modified and distributed on other platforms without permission, except where permitted by law.

22. User Responsibility

Users are responsible for ensuring that the information they submit through the website is accurate and belongs to them.

Personal or health information relating to another person should not be submitted unless the user has the necessary legal authority or permission.

23. Changes to This Policy

This Privacy Policy, KVKK Notice, Cookie Policy and Terms of Use may be updated due to changes in legislation, technical infrastructure, or website services.

The most recent version becomes effective when published on the website.

24. Contact

For questions regarding this policy or the processing of your personal data:

Dr. İlker Zan
Cardiovascular Surgeon – Phlebologist
Şirinyalı Mah. İsmet Gökşen Cad. Savaş Apt. No:65/4
Muratpaşa / Antalya, Türkiye
Phone: +90 546 530 40 50
Email: bilgi@drilkerzan.com