Clinical Team

Mahmood photo cropped
Dr. Mahmood Salim Abdullah Al Subhi
MD, FRCPath (UK), DTM & H (UK)

Dr. Al Subhi heads the clinical team at precision Health Science as Consultant Doctor. Dr. Al Subhi is a Medical Microbiologist at Rustaq Hospital of the Ministry of Health Oman. At Rustaq Hospital Dr. Al Subhi is Head of Infection Control and CSSD, and Leader of the Antimicrobial Stewardship Team. He has also been responsible for its Covid-19 RT-PCR testing programme. Another role he performed at Rustaq Hospital was Chairperson of the Complaint Committee. Prior to Rustaq, Dr. Al Subhi was a Resident at the Oman Medical Speciality Board. He practiced as a General Practitioner for three years. Dr. Al Subhi has extensive knowledge and practical experience of infectious disease epidemiology, pathogenesis and infection control.


Dr. Al Subhi attained his BSc in Basic Health Sciences and then his MD from Sultan Qaboos University. He is a Fellow of the Royal College of Pathologists, U.K. Additionally, he is the holder of a Diploma in Tropical Medicine & Hygiene (DTM & H), UK. He also holds a Clinical
Fellowship in Infection Control, Canada and a Certification in Infection Control, USA..

Rajappa
Rajappa Asirvatham
B.Sc. MLT, M.Sc. MLT, Senior Lab Technologist

Rajappa leads the Haematology and Haemostasis lab.

Rajappa has 36 years of laboratory experience in India, Saudi Arabia and Oman, including 24 years supervising the haematology lab in Khoula Hospital. He has written numerous scientific articles for medical lab journals. Rajappa has specialist knowledge of haemoglobinopathies, thalassemias and haemoglobin variants. He is also an expert in the handling of High Performance Liquid Chromatography, Gel and Capillary Electrophoresis systems.

Shehab-resized
Shehab Taha Osman
B.Sc. MLT (Parasitology), M.Sc. MLT (Microbiology), Senior Lab Technologist

Shehab leads the Microbiology Lab and is responsible for COVID-19 RT-PCR testing.

Shehab has 18 years of laboratory experience in Sudan. He worked 5 years at the Ministry of Health. He specialised for 3 years in an Obstetrics & Gynaecology clinic. He also spent 9 years supervising a private clinic laboratory, responsible for all testing in microbiology & parasitology, haematology, biochemistry and serology. Shehab has thorough experience in systematic bacteriology.

IMG_7737-e1589352061769-768x1024 (1)
Jayasekar George Silas
DMLT, Senior Lab Technologist

Jayasekar leads the Biochemistry and Immunochemistry lab.

Jayasekar has 25 years of laboratory experience in India and Oman. 10 of these years were as Heads of laboratories, leading and managing all functions. He has broad experience of working with a wide range of analysers, including the latest fully automated versions in haematology, immunochemistry, biochemistry and microbiology. He also has experience of working in a blood bank. Jayasekar has participated in a Virology Quality Control Programme run by the Ministry of Health, Oman. He is also trained at the National Training Institute, Oman in Health & Safety.

unnamed
Omer Mustafa Mohamed
MSc MLS (Histopathology), BSc MLS, Lab Technologist

Omer works in the Microbiology lab, assisting with PCR tests.

Omer has 11 years of laboratory experience in Sudan and Oman.  Most recently he was a Lab Technician at the Ministry of Health Al Nahda Hospital in Muscat, working primarily in the Microbiology lab.  Prior to working in Oman, Omer was a Lab Technologist in the Histopathology & Cytology Department of the National Ribat University, Faculty of Medical Laboratory Science, Sudan.  His core skills are in cytology and cytopathology, and also across other lab departments and functions."