• M.B.B.S from Calicut Medical College 1987
• MD in Internal medicine from KMC Mangalore 1992
• DM in Neurology from Kottayam Medical college 2000
• Training in interventional Neurology from Sir Ganga Ram Hospital 2007 to 2008
• Professional diploma in clinical research 2013
• FRCP(Glasg)- Fellow of Royal College of Physicians.
• FAAN - Fellow of the American Academy of Neurology.
• FEAN - Fellow of European Academy of Neurology.
• FIMSA- Fellowship in International Medical Sciences Academy.
• FRCP(Edin)- Fellow of Royal College of Physicians.

• Private Practice as internist at Edappal Hospital from 1992 to 1995 and at AL-RAYAN poly clinic, Saudi Arabia from 1995 to 1997.
• Sub specialization in Neurology at Kottayam Medical college – 1997-2000
• Senior lecturer in Neurology at Calicut Medical College- 2001
• Working since 2000 at Baby Memorial Hospital

Principal investigator (PI)

• Parkinson's study (Safinamide)- (3rd Largest recruitment in India) 2006 - 2008 : Screened 31 patients and 19 randomized patients
• Low back pain Study (Ralfinamide) and extension study 2009 : 14 Patients Randomized
• Parkinson study extension 2008 - 2010 : Randomized 15 patients
• Study on Rotigotine patch 2011 - 2012 : Randomized 8 patients
• Study on pediatric migraine 2010 : Screened 5 patients
• Inspire Stroke epidemiological study 2012 - 2014 : 150 patients
• Interact 2 study on intracerebral hemorrhage : 2011 with 14 Patients
• Study on pramipexole-PK study 2014 : Screened 4 patients, randomized 1 patient
• Study on acitrom (CONFIDENCE-REGISTRY 2015) 2015 : 74 patients
• Head Post Trial international study (George institute, Australi 2016 - 2017 : 70 Patients
• IRIS- TNK Registry 2018 : 15 Patient
• Clinical study to assess Efficacy of PMZ-1620 along with standard treatment in patients of Acute Ischemic Stroke --reg, Phase 3 randomised trial 2020.(On Going)

Co-Investigator

• Vitatops - 2016: Randomized 100 patients(Co-I)
• Inter stroke - 2006: 100 patients(Co-I)
• Multiple sclerosis - 2009: Screened 2 patients(Co-I)
• Sits - New study on IV tPA: 30 patients(Co-I)
• Tnk-tpa study: 8 patients(Co-I)

Ongoing studies

• Epilepsy and pregnancy - Teratogenicity and anti epileptic drugs - Since 2014 Vit B12 and pain syndrome - Since 2014
• Samarpanam study (Epidemological study on stroke and other life style diseases and Risk factors - Since 2017
• Epidemiological study of risk factors of stroke( Indian Academy of Neurology Research Grant Pending) - 2020

• Robin George Manappallil, Ummer Karadan, Revathy Anil, Raguram Krishnan, Pradeep P Veetil, Harilal Nambiar, Blessy Josphine - Hypocalcemia Seizure Due to Vitamin D Deficiency - Indian Journal of Critical Care Medicine, October 2020.
• Mohan Leslie Noon, V G Pradeep Kumar, Ummer Karadan, Jaya Krishnan - Mobile app-based strategy improves door-to-needle time in the treatment of acute ischemic stroke - Journal of Stroke and Cerebrovascular Diseases, September 2020.
• Ummer Karadan, Robin George Manappallil, Manoj Bhaskaran, Anoop Chandran - Parainfectious vasculitis due to Pneumococcal meningitis following traumatic CSF rhinorrhea resulting in cerebellar infarction - AJMS, July-August 2020.
• Ummer Karadan, Robin George Manappallil, Ivin Panakkel Zacharia, Thushara Anandh - Nonspecific food-dependent exercise-induced anaphylaxis with Seizure: a case report - Asian Journal Of Medical Sciences, July 2020.
• Ummer Karadan, Robin George Manappallil - Diclofenac induced Kounis Syndrome, a case report - JIMSA, May 2020.
• Ummer Karadan, Robin Manappallil - Hypercalcemia and secondary hypoparathyroidism following over-the-counter Vitamin D intoxication - JIMSA, April-June 2020.
• Bhargavan Pallivalappil, Althaf Ali, NK Thulaseedharan, Ummer Karadan, Jayakrishnan Chellenton, KP Dipu, AS Anoop Kumar, KG Sreejith Kumar, TP Rajagopal, KP Suraj, GR Santosh Kumar, RN Supreeth, Mounika Velisetti, Prathap Reddy Muthalya, KS Aryasree, K.S. Apurva Rao - Dissecting an outbreak: A Clinico-epidemiological study of Nipah virus infection in Kerala, India 2018.
• Bhargavan Pallivalappil, Ummer Karadan, Jayakrishnan Chellenton, Robin George Manappallil - Nipah Virus Infection with cerebellar dysfunction - European Journal of Medical Case Reports, February 2020.
• Deep Das, Ummer Karadan, Jayakrishnan Chellanton, Manoj KS Mahata - Isolated Horner syndrome as a sole manifestation of ischemic stroke - EC Neurology Case Report, April 29, 2019.
• Ummer Karadan, Robin George Manappallil, Revathy Anil - Multiple sclerosis presented as isolated peripheral facial nerve - Indian Journal of Clinical Report.
• Ummer Karadan, Robin George - The IVY sign of Moya Moya disease - Asian Journal of Medical Sciences, May 2019.
• Ummer Karadan, Suprith R. Naga, Jayakrishnan - Bilateral lateral geniculate body lesions causing reversible blindness in a patient with posterior reversible encephalopathy syndrome - R Coll Physicians Edinb, 2019.
• Ummer Karadan, Robin George Manappallil, Anisha Janardhanan, Ramesh Naga Supreeth - Trigeminal Trophic Syndrome following anterior inferior cerebellar artery infarction - BMJ Case Reports, 2018.
• Ummer Karadan, Samarth A. - Neurointervention in Nepalese Neurosciences practice: The need of the hour - 2018.
• Ummer Karadan, Robin George Manappallil, Chellenton Jayakrishnan, Ramesh Naga Supreeth - Pontine haemorrhage disguised as Bell’s palsy - BMJ Case Reports, February 2018.
• Jayameena Peringat, Robin George Manappallil, Ummer Karadan - Rhabdomyolysis: a rare complication of Hashimoto’s thyroiditis precipitated by statin therapy - BMJ Case Reports, February 2018.
• Ummer Karadan, Robin George Manappallil, Ramesh N. Supreeth, Chellenton Jayakrishnan - Twenty-Four Syndrome: An Untold presentation of Pontine Hemorrhage - J Stroke Cerebrovasc Dis, 2018.
• Ummer Karadan, Robin George et al. - Pontine infarct masquerading as Bell’s palsy, a case report - Journal of Case Report, 2017.
• Hari Prasad, Ummer Karadan - A Case of Hybrid Carotid Revascularization - BMH Medical Journal, February 2017.
• Ummer Karadan, George Robin - Hypercalcemia following over-the-counter Vitamin D intoxication in an elderly debilitated patient - European Geriatric Medicine, 2017.
• R.G. Manappallil, Ummer Karadan, P. Kumar, M.C. Sabir, R.N. Supreeth - Acute delirium following administration of Piperacillin-Tazobactam in an elderly patient with chronic liver disease - European Geriatric Medicine, 2017.
• Ummer Karadan, Nagaraj Ashok Desai - Eosinophilic Meningitis in a Middle-Aged Man After Consumption of Camel Meat - BMH Medical Journal, March 2014.
• Dr. Salam KA, Ummer Karadan, Pradeep Kumar VG, Noone ML - Intravenous thrombolysis for acute ischemic stroke in the 3- to 4.5-hour window - the Malabar experience - Int J Stroke, June 2014.
• Ummer Karadan, Salam KA, Noone ML, Pradeep Kumar VG, Mampilly N, Sivakumar S - Leukoencephalopathy with intracranial calcifications and cysts in an adult: Case report and review of literature - Annals of Indian Academy of Neurology, 2010.
• Noone ML, Kumar VG, Ummer Karadan, Achambat L, Salam KA - Cirrhosis presenting as Parkinsonism - Ann Indian Academy Neurology, July 2008.
• Salam KA, Ummer Karadan, Kumar VG, Noone ML, Laila A, Ragini J - Intravenous thrombolysis for acute ischemic stroke: the Malabar experience 2003 to 2008 - J Clin Neuroscience, October 2009.
• Madhusudanan M, Menon MK, Ummer Karadan, Radhakrishnanan K - Clinical and etiological profile of tropical ataxic neuropathy in Kerala, South India - Acta Scandenevia Eur. Neurol., 2008.
• Praveen K, Ummer Karadan - Isolated hypoglossal paralysis following Orofacial herpes simplex infection - Journal of Association of Physicians of India, 1995.