Expert Care You Can Trust
Meet Our Doctors
Our team of experienced doctors is dedicated to providing top-notch medical care. Each doctor brings a wealth of knowledge and skill, ensuring you receive the best treatment tailored to your needs. We prioritize your health and well-being in a compassionate environment.

Dr. Alvin Villanueva
Geratrics/Internal Medicine
Dr. Villanueva completed medical school at the University of the Philippines, pursued residency in Internal Medicine in New York City, followed by a geriatrics fellowship in Milwaukee, and has practiced in the U.S., New Zealand, and Canada since 2006. Drawn to the complexity and critical thinking of Internal Medicine and Geriatrics, they find fulfillment in helping patients regain meaningful function and enjoy working at Peak for its collaborative, multi-specialty environment.
- Phone:403-910-5313

Dr. Fawad Elahi
General Psychiatrist
Dr. Fawad Elahi is a highly respected Psychiatrist with extensive training and clinical experience in both Ireland and Canada. He provides compassionate, patient-centered care to children, adolescents, and adults facing a wide range of mental health concerns.
With a particular interest in supporting young people experiencing challenges such as anxiety, depression, and other emotional or behavioral difficulties, Dr. Elahi is committed to delivering thoughtful assessments and individualized treatment plans tailored to each patient's unique needs. He strives to create a supportive and collaborative environment where patients and families feel heard, understood, and empowered on their path to improved mental well-being
- Phone:587-774-1073

Dr. Eki Wari
Internal Medicine
Dr. Eki Wari is an Internal Medicine Specialist with a passion for providing comprehensive, patient centered care to adults with a wide range of acute and chronic medical conditions. She completed her Internal Medicine residency training at University of Michigan-Sparrow Health system and has experience managing complex medical illnesses in both inpatient and outpatient settings.
Dr. Wari is committed to building strong relationships with her patients through compassionate communication, evidence based medicine, and a collaborative approach to care. Her clinical interests include preventive medicine, chronic disease management, cardiovascular health, diabetes care, and improving overall patient wellness.
Outside of clinical practice, Dr. Wari enjoys medical education, mentorship, and continuous professional development to ensure her patients receive the highest standard of care.
- Phone:403-910-5313

Dr. Muhammad Adnan Saleem
Respirologist
Dr. Muhammad Adnan Saleem is a British‑trained consultant respirologist with 18 years of clinical experience, including 15 years in the UK’s NHS, specializing in the full spectrum of respiratory medicine and advanced procedures such as bronchoscopy and EBUS. He completed his MBBS in Pakistan, postgraduate training in the UK with MRCP and CCT certifications, and most recently served as a consultant respirologist at Shrewsbury and Telford NHS Trust before relocating to Alberta
- Phone:403-910-5314

Dr. Jamshed Alam
Respirologist
Dr. Jamshed Alam is a Consultant in Respiratory and General Internal Medicine at Pinnacle Medical Centre Trinity, with over 20 years of international experience across the UK, Ireland, and Pakistan. He specializes in complex respiratory conditions and is internationally accredited, recognized for his compassionate, patient‑centred, and evidence‑based approach to care.
- Phone:403-910-5314

Dr. Harry Gill
Allergist
Dr. Harinder Pal Gill is a fellowship-trained Allergist and Clinical Immunologist with board certifications in both adult and pediatric care. He takes a thorough, evidence-based approach to treating complex allergic and immunologic conditions like asthma, eczema, and eosinophilic esophagitis, always with compassion and care.
- Phone:403-910-5315

Dr. Jackson Wong
Pediatric Respirologist
Dr. Jackson Wong. MB.BS. FRCP, FRCPCH, FRCP (Edin), DCH, FHKAM, FHKCPaed
Dr. Wong is a pediatric respirologist and clinician with 39 years of clinical experience practiced in the UK, Australia and Canada. Majority of his previous positions were held in national tertiary and international quaternary centers university teaching hospitals. He has extensive experience in treating complex and severe conditions and diagnosing challenging conditions. He treats children with diverse and complex upper airway, pulmonary and sleep respiratory conditions. He is passionate in empowering parents through patient education and delivering high quality individualised family centered care.
Dr. Wong completed his medical degree at the Imperial College, University of London, UK in 1987. He then completed training in General Pediatrics, Pediatric Respiratory Medicine and a Pediatric Respirology Research Fellowship at the University of Leicester, UK. His research involved infant bronchiolitis (a common infant cough and wheezing disease), inhaled steroids aerosol assessment and safety, nocturnal cough and oxygen saturation monitoring during sleep, infant lung function and respiratory cilia. Dr. Wong further completed an additional clinical fellowship in pediatric respiratory medicine at the Royal Children’s Hospital, University of Melbourne as well as lung transplant training at the Alfred Hospital, Monash University, Australia in year 2000. Dr. Wong had gained extensive experience working in multiple tertiary and quaternary centers in three continents including the Hammersmith Hospital and a Senior Fellowship at the Great Ormond Street Hospital in London, UK. In Canada, he had held positions as associate professor at the University of Alberta, founding subspecialty training program director in pediatric respirology and founding medical director in pediatric lung/heart-lung transplantation at the Stollery Children’s Hospital. Dr. Wong was associate professor and founding division chief in pediatric respiratory medicine at the McMaster University until 2016.
Dr. Wong participated in the revision of the 2011 Royal College of Physicians and Surgeons of Canada Pediatric Respirology training curriculum. He was an expert advisor for Health Canada in Cell, Tissue and Organ. He served as the secretary of the International Pediatric Lung Transplant Collaborative for five years until 2014. He chaired the Perfusable Organ for Transplantation Subcommittee at the Canadian Standard Association for 6 years till 2024 and Co-Chair of the Canadian Society of Transplantation Standard Committee for 11 years till 2025. He was a voting member of the Transmittable Disease Technical Committee at the Canadian Standard Association till 2024. He is an invited member of the Canadian Society of Transplantation Ethics Committee. He is a member of the Alberta Health Service, Respiratory Health Strategic Clinical Network Airway Working Group.
Dr. Wong’s publications include clinical innovations, monographs, state of the art papers and Canadian national standards. He has published in asthma, infant bronchiolitis, lung function, airway and exercise challenge, chronic and complicated infective lung diseases, aerosol
medicine, bronchoscopy and lung/heart-lung transplantation. He is the senior author of a recent publication in Pediatric Pulmonology 2023 that studied 45,230 children with intermittent asthma in collaboration with the Texas Children’s Hospital, USA. https://onlinelibrary.wiley.com/doi/10.1002/ppul.26369 He is an active reviewer of multiple medical journals in respiratory medicine, allergy/immunology and transplantation.
- Phone:403-910-5314
- Email:info@peakmedicalgroup.ca

Dr. Jasper Johar
Allergist
Dr. Jasper Johar is a dual-certified allergy, asthma, and immunology specialist who treats both adults and children. He trained across Canada and has a special interest in severe conditions like eczema, asthma, chronic hives, and eosinophilic esophagitis. His approach is thorough, compassionate, and focused on helping patients manage complex atopic diseases.
- Phone:403-910-5315

Dr. Jennifer Mo
Allergist
Dr. Jennifer Mo is a pediatrician with a special interest in allergy, trained in both New York and Chicago. Originally from Toronto, she’s excited to continue her work in pediatric allergy at Peak Medical Group and speaks English, Cantonese, and basic Mandarin.
- Phone:403-910-5315

Dr. John Neilson
Pediatric Neurologist
Dr. John Neilson, originally from Alberta, trained in Calgary and Edmonton before diving into his passion for headache medicine. His dedication earned him the Ehor Gauk Award for research excellence, and when he's not in the clinic, he's busy enjoying life with his wife and three young kids.
- Phone:780-306-9209

Dr. M Nadeem Khan
Psychiatrist
Dr. Khan is a General Adult Psychiatrist who works with patients aged 18 to 65, helping them manage a range of mental health concerns. He accepts referrals for conditions like anxiety, adult ADHD, PTSD, affective disorders, and psychosis, and takes a thoughtful, comprehensive approach to care.
- Phone:587-774-1073

Dr. Michelle McDowell
Internal Medicine
Dr. Michelle McDowell is an internal medicine specialist at Peak Hamptons Clinic in Calgary, offering personalized care for adult patients. Dr. McDowell's main focus is offering comprehensive medical care to adult patients in Calgary. She will be more than happy to serve you, help you assess your medical conditions, and find the best solutions for reaching your optimal health and wellness.
- Phone:403-910-5313

Dr. Mohammad Attar Khan
Psychiatrist
Dr. Mohammad Attar Khan is a certified psychiatrist with over 14 years of experience in Canada, specializing in child and adolescent psychiatry. He sees patients between ages 6 and 18 for conditions like ADHD, anxiety, depression, OCD, and more, with referrals accepted for non-custody-related cases. Fluent in several languages, Dr. Khan also teaches at UBC and brings a thoughtful, collaborative approach to care
- Phone:587-774-1073

Dr. Nwamara Dike
Physiatrist
Dr. Nwamara Dike has been part of the Peak Medical team since 2015 and brings over a decade of experience to her practice. She’s passionate about helping patients recover from injuries and prevent future ones, and outside of work, she enjoys running, sewing, and interior design.
- Phone:403-910-5316

Dr. Risa Namsechi
Pediatric Neurologist
Dr. Risa Namsechi is a pediatric neurologist from Edmonton who trained at the University of Alberta and the Stollery Children’s Hospital. She’s passionate about supporting underserved communities and has a special interest in headache management and functional neurologic disorders, but welcomes all pediatric and young adult neurology concerns.
- Phone:780-306-9209

Dr. Robyn McPherson
Pediatric Neurologist
Dr. Robyn McPherson is a pediatric neurologist who trained in both Edmonton and Calgary, and is happy to be back serving her hometown community. She has a special interest in headache care but enjoys working with kids and families on all types of neurological concerns. Outside of work, she loves spending time with her son, husband, and rescue dog, especially exploring the river valley and enjoying great food.
- Phone:780-306-9209

Dr. Sabrina Apel
Neurologist
Sabrina Apel was born in Ukraine and raised in Edmonton and Calgary. She attended university and medical school in Calgary, following which she moved back to Edmonton to complete a 5 year residency in Neurology. Following residency, Sabrina returned to Calgary to open up a general neurology practice. Her areas of interest within neurology include headache disorders, particularly migraines, movement disorders such as Parkinson’s Disease and tremor, and epilepsy.
- Phone:587-774-6056

Dr. Stuart Wiber
Rheumatologist
Dr. Wiber is a community rheumatologist who’s passionate about helping patients understand their conditions and make informed decisions about their care. He’s received multiple awards for his academic excellence and teaching, and continues to mentor future physicians through the University of Calgary’s Division of Rheumatology.
- Phone:587-774-6413
- Email:Montgomery

Dr. Teresa Pun
Allergist
Dr. Teresa Pun was born in Hong Kong and raised in Toronto, completing her medical training across Canada. She now focuses on treating environmental and food allergies, urticaria, and is passionate about helping patients manage their symptoms with care and expertise.
- Phone:587-797-1937

Dr. Tessa Campbell
Osteoporosis
Dr. Tessa Campbell is an internal medicine and rheumatology specialist at Peak’s Hamptons location, with a focus on osteoporosis care. She offers services like fracture risk assessments, post-menopausal bone health checkups, and medication reviews, and is currently accepting new referrals. Outside the clinic, she enjoys hiking in the mountains with her husband and two kids.
- Phone:587-943-4343

Dr. Tracey Bryan
Respirologist (Pulmonologist)
Dr. Tracey Bryan is a respirologist based in Edmonton who joined Peak in 2014. She trained in Calgary and Edmonton, and brings experience from the Grey Nuns Hospital and Centre for Lung Health, where she was recognized as Teacher of the Year. Dr. Bryan is also an active member of several professional organizations and has published research in respiratory medicine.
- Phone:587-786-3352

Dr. Vijay Sharma
Internal Medicine
Dr. Sharma is an internal medicine specialist with a focus on heart health and managing cardiovascular risk factors like high blood pressure, diabetes, and cholesterol. He also helps patients with complex chronic conditions and offers personalized care plans to optimize treatment and prevent complications.
- Phone:403-910-5313

Dr. Vijender Balain
Psychiatrist
Dr. Vijender Singh Balain is a psychiatrist based in Calgary, Alberta. He received his Doctor of Medicine from Ukraine in 1998. He is a psychiatry fellow with the Royal College of Physicians Canada. Dr. Vijender Balain practices General Adult Psychiatry at Peak Medical Group Montgomery.
- Phone:587-774-1073

Dr. Warren Davidson
Respirologist (Pulmonologist)
Dr. Warren Davidson is a respirologist at Peak Medical Group’s Lincoln Park location in Calgary, specializing in lung and respiratory conditions. He treats everything from asthma and COPD to sleep apnea and lung cancer, helping patients breathe easier with expert, personalized care.
- Phone:403-910-5314

Dr. Wasiu Okunade
Primary Care Dermatologist
Dr. Okunade welcomes patients of all ages and treats a wide range of skin, hair, and nail conditions—from acne and eczema to warts, alopecia, and nail issues. He also offers thorough skin exams using a dermatoscope to check for both benign and potentially serious lesions, making sure your skin health is well looked after.
- Phone:587-864-6623
What Our Patients Say
Why Patients Choose Our Practice
I've been seeing Dr Dike and she is the first person who seemed to actually care and to be honest, the first person who really seemed to know much about the human anatomy or what might or might not be causing me pain. That's saying quite a lot given how many people I've seen for the same issue. I've been going to the clinic for about a year now or close to.

L. Vajda
"The ladies behind the desk we very nice and both greeted us. I was there for lung tests. She was very efficient and friendly you could tell she liked her job and she made you feel very comfortable. When we were called by the doctor he shook my hand and welcomed me to the clinic. He was very efficient and explained everything so we understood everything that was going on. I would definitely recommend the Peak Medical Group."

L. McMillan
"Had a very good experience at peak sleep clinic. They were great and when I had the trial of the machine they answered all my emails promptly when I had any questions or concerns. They told me about all the ways to save money on supplies and also helped to check what my insurance covered."

R. Whiteley


