Clinical Experience

Zakel Healthcare, International

06/17 – Present

Managing Director and Owner

I founded this boutique healthcare company in 2016, which specializes in niche markets. We are just the right size for clients who are not willing to pay big money to big companies for big company solutions big money. Me and my team of international experts, specialists and operators are at your service 24/7. We strive to solve problems others can’t.

TUI Cruises, Hamburg, Germany

11/16 – 06/17

Ship Doctor

Serving as Anesthesiologist and Emergency Care Physician in the emergency ward on board of cruise ships. Is Responsible for the basic and emergency medical treatment of the passengers and the crew members. Dealing with a wide range of medical conditions – evaluation and treatment of medical, surgical, gynaecological and paediatric problems; suturing of wounds; incision and drainage of abscesses; evaluation of ophthalmologic emergencies; reduction of simple dislocations, splinting and immobilization procedures; Advanced Cardiac Life Support procedures and treatments (ACLS, ATLS, PALS, PHTLS) including emergency airway management; administration of thrombolytic agents and other life saving interventions.

International SOS, Port Moresby, Papua New Guinea

10/15 – 08/16

Anesthesiologist & Emergency Care Physician

Served as Anesthesiologist and Emergency Care Physician as well as specialist for Transfusion Medicine for ISOS catering to the Australian Federal Police. Provided care for patients and supervised on-site paramedics. Negotiatedand activated emergency repatriation. Treated AFD patients in the ED and ICU.

International SOS, Erbil, Iraq

11/14 – 10/15

Senior Medical Officer

Served as Senior Medical Officer for ISOS catering to the oil industry in Iraq. Provided care for patients and supervised on-site paramedics. Negotiated and activated emergency repatriation.

dr.ive in, Vienna, Austria

05/14 – 09/14


Launched and managed medical practices on gas staions in cooperation with ENI an Italian multinational oil and gas company that provided comprehensive medical care in outpatient setting. Practice offered medical care at a flat-rate price model, which was reported through all media channels across Europe as an innovative concept with great acceptance by health care consumers; Wal-Mart subsequently adopted this model.

360° Medizin, Vienna, Austria

08/05 – 09/14


Opened and managed personal physician service, providing patients with comprehensive cutting-edge medical solutions for various medical conditions.

FIFA U-17 World Cup, Kaduna, Nigeria

07/09 – 09/09

Chief Medical Officer

Organized and managed medical EMSA and security services for World Cup.

Landes-Nervenklinik Wagner-Jauregg, Linz, Austria

03/06 – 03/07

Staff Anesthesiologist

Provided anesthesiology services for surgical patients. Performed preoperative assessments on patients with neurological and neurosurgical diseases to develop and execute appropriate anesthetic plans. Practiced evidence-based medicine and contributed to development of clinical guidelines and protocols to improve quality of patient care. Prepared research programs for publication in reputed scientific journals.

Universitätsklinikum St. Pölten, St. Pölten, Austria

11/04 – 12/05

Staff Anesthesiologist

Administered anesthesia or sedation during medical procedures. Collaborated with members of multidisciplinary team to determine type and method of anesthetic procedures. Educated medical students and other hospital staff on types and method of anesthesia used during procedures. Instructed individuals and groups on disease prevention and healthy lifestyles. Conducted medical research for disease prevention, investigation of new medications, and developed new medical techniques.clinical guidelines and protocols to improve quality of patient care. Prepared research programs for publication in reputed scientific journals.

Medical University of Vienna, Vienna, Austria

01/96 – 09/04

Staff Anesthesiologist (01/99 – 09/04)

Tasked with participating in research programs, teaching students and other health care providers in operation theater, and various administrative duties. Took part in various research programs and published papers.

Resident Anesthesiologist (01/96 – 12/98)

Completed residency program at the top-ranked medical university in Central Europe.

Military Experience

FIFA U-17 World Cup, Kaduna, Nigeria

10/82 – 09/13


Selected international assignments:

  • Chief Medical Officer, KFOR Kosovo, 1999
  • Medical Officer, UNDOF, Syria / Israel, 1995
  • Force Medical Officer, UNIKOM / UNSCOM, Iraq / Kuwait, 1994 – 1995
  • Triage Officer and Head of Emergency Department, UNAFHIR, Iran, 1991
  • Operations Duty Officer, UNFICYP, Cyprus, 1986

Consulting Experience

Vanbreda International, Vienna, Austria

05/09 – 03/11

Medical Consultant

Contracted to expand organization’s expert network throughout Austria.

National Research Center for Maternal and Child Health, Astana, Kazakhstan

05/10 – 11/10

Senior Consultant for Anesthesia and Intensive Care

Selected by President of hospital to build Anesthesia Department for
organization’s new hospital.

Vienna General Hospital, Vienna, Austria

10/03 – 04/04

Project Lead

Led University Project, “Saving 50% Blood” to save red packed blood cells in facility’s university clinic.

International Relations Experience

Freiheitsakademie, Vienna, Austria

05/12 – Present Present


Elected as President of think tank that promotes individual liberty and opposes etatist structures bureaucracy and state violence.

Medtrix, Vienna, Austria

03/07 – 09/12


Founded spezialized lobbying agency that focused on convincing decision makers in politics and the health care sector by communicating scientific arguments and facts. Not an easy task. Successful lobbying efforts led to the election to the Chamber of Doctors as a functionary.

Medvertising, Vienna, Austria

03/07 – 09/12


Established specialized advertising agency to promote medical services in Austria.

French Delegation to the OSCE in Vienna, Austria

09/04 – 10/04

International Relations Internship

Details are confidential

Austrian Government, Vienna, Austria

03/04 – 08/04


Requested by leading government bureaucrats and politicians to provide medical expertise in drafting new legislation.

Research Experience

Duke University Medical Center, Durham, NC

04/01 – 06/01

Fellowship — Diving and Hyperbaric Medicine

Selected by Medical University of Vienna to be trained in hyperbaric oxygen therapy and to set up the new HBO center in Vienna.

Scripps Clinic and VA Medical Center, San Diego, CA



Observed surgical procedures and processes to prepare a cardiothoracic residency program in Austria.

Cornell Medical Center, Department of Cardiothoracic Surgery, New York, NY

01/93 – 02/93


Observed cardiothoracic procedures and processes to prepare a cardiothoracic residency program in Austria.


  • Sadjak, A., R. Wintersteiger, D. Zakel, T. Wenzl, E.P. Lankmayr, E. Gferer, R.
    Likar. “Peripheral Analgesic Effect of Intra-Articularly Applied Clonidine.”
    Schmerz. August 2006.
  • Wenzl, T., E.P. Lankmayr, R. Wintersteiger, A. Sadjak, R. Likar, D. Zakel.
    “Determination and Quantification of Clonidine in Human Blood Serum.”
    Journal of Biochemical and Biophysical Methods. October 2002.
  • Ihra, G., N. Kolev, D. Zakel, A. Kepka, C. Schabernig, A. Aloy.
    “Transesophageal Echocardiographic Assessment of Right Heart
    Hemodynamics During High-Frequency Jet Ventilation.” Journal of Clinical
    Anesthesia. February 1999.