Internal Medicine

Cardiology & Pulmonology

1707 W Charleston Blvd Photo

Our Internal Medicine physicians are trained to prevent, diagnose and treat illnesses and diseases that affect adults, age 18 and older. UNLV Medicine features three different internal medicine locations. This location specializes in Pulmonology (respiratory system), and Cardiology (heart).

Diabetes & Endocrinology

Our endocrinologists can diagnose and manage disorders of the endocrine system. Backed by training and compassion, our team provides a patient-focused environment. With access to state-of-the-art equipment and techniques, we provide high-quality and cost-effective care.

Gastroenterology & Rheumatology

Our gastroenterologist is a leader in the field, using the latest treatments and technology to ensure that your needs are addressed.

Our rheumatologist offers the latest treatment for arthritis, osteoporosis, and autoimmune disorders. He is a leader in promoting programs of excellence in teaching and research. He specializes in rheumatoid arthritis, lupus, myositis, scleroderma, osteoporosis and joint pain.

Clinic

Neurology

The UNLV Medicine Neurology clinic includes neurologists highly trained to recognize, diagnose, and address the early symptoms of nerve dysfunction in patients. Because of our clinical experience treating a variety of neurological problems we are able to work with patients to establish the cause of symptoms and prescribe effective courses of treatment.

Doctor Diabetes & Endocrinology

Amber Champion, MD
Internal Medicine, Endocrinology

Dr. Amber Champion is originally from Washington state, but has practiced in Baltimore and Nebraska prior to joining the UNLV School of Medicine. She graduated from The Flinders University School of Medicine of South Australia in 2005. She completed Internal Medicine Residency in Spokane, WA, and Endocrinology fellowship at the University of Arizona in Tucson.

Doctor Residents & Fellows

Laura Culley, MD, MPH
Internal Medicine

Photo: Dr. Laura Culley

Dr. Laura Culley, the UNLV School of Medicine Associate Dean of Community Engagement, has more than 25 years of experience as a board-certified physician in internal medicine, serving in leadership positions with two medical practices in New York City and Las Vegas.

She previously served as medical director of Volunteers in Medicine of Southern Nevada. For nearly 30 years, Dr. Culley operated a private practice in New York City and then Las Vegas.

Doctor Cardiology & Pulmonology

Jimmy Diep, MD
Interventional Cardiology

Photo: Jimmy Diep, MD

Dr. Jimmy Diep, an assistant professor in the UNLV School of Medicine Department of Internal Medicine, graduated from the University of Nevada Reno School of Medicine. 

Following his residency in internal medicine at the University of Nevada Reno School of Medicine, Dr. Diep completed a general and interventional cardiology fellowship at the University of California Irvine School of Medicine. 

Doctor Cardiology & Pulmonology

Rajany V. Dy, MD
Internal Medicine

Photo: Rajany Dy, MD

Rajany V. Dy, MD graduated from the De La Salle Health Sciences Institute, Manila, The Philippines in 2007. She trained in Internal Medicine at the Yale New Haven Hospital and Pulmonary / Critical Care Medicine at University at Buffalo. She specializes in pulmonary diseases and the care of critically ill patients. Her interests include interstitial lung diseases, COPD, ARDS and fluid management in the ICU. Dr.

Doctor Gastroenterology & Rheumatology

Mitchel Forman, DO
Internal Medicine, Arthritis and Rheumatology

Photo: Dr. Forman

Mitchell D. Forman, D.O., is an Osteopathic physician and the Founding Dean and Professor of Medicine at Touro University Nevada College of Osteopathic Medicine. During that period of time he also had a busy part-time Rheumatology practice at Touro. He retired as the Dean of Touro’s Medical School in 2016 to practice Rheumatology in the Touro Clinic. He is currently Dean Emeritus and Professor at Touro University Nevada.

Doctor Residents & Fellows

Badrunnisa Hanif, MD
Internal Medicine

Photo: Dr. Hanif

Dr. Badrunnisa Hanif, MD, FACP, Board Certified in Internal Medicine since 2002 is an assistant professor in the UNLV School of Medicine Department of Internal Medicine. She was graduated from Sindh Medical College in Karachi, in 1996, and completed her residency training in 2002 from the University of Nevada, Reno School of Medicine.

Doctor Cardiology & Pulmonology

Angelica E. Honsberg, MD
Internal Medicine, Pulmonology

Dr. Angelica Honsberg, an assistant professor in the UNLV School of Medicine Department of Internal Medicine, graduated from the Sidney Kimmel Medical College in Philadelphia. 

She completed her internal medicine residency at Thomas Jefferson University and a pulmonary fellowship at the University of Arizona. 

Dr. Honsberg is board certified by the American Board of Internal Medicine.

Doctor Diabetes & Endocrinology

Kenneth Izuora, MD, MBA
Internal Medicine, Endocrinology

Photo: Kenneth Izuora, MD

Dr. Kenneth E. Izuora, an associate professor in the UNLV School of Medicine Department of Internal Medicine, believes it is vital that he uses his education to “make an impact on people’s lives.”  

A graduate of the University of Nigeria Faculty of Medicine, he is board certified by the American Board of Internal medicine. Fellowship trained at Emory University in Atlanta, he specializes in endocrinology.

Doctor Gastroenterology & Rheumatology

Mahendran Jayaraj, MD
Internal Medicine, Gastroenterology

Photo: Mahendran Jayaraj, MD

Dr. Jayaraj earned his medical degree from Stanley Medical College, Chennai, Inda. He completed his Internal Medicine Residency training at University of Nevada School of Medicine, Las Vegas. He completed his Gastroenterology Fellowship at University of Nevada, Las Vegas. Dr. Jayaraj’s clinical interest include prevention of colorectal cancer by screening and surveilance colonoscopy, general hepatology and bariatric endoscopy. 

Doctor Residents & Fellows

Nazia Khan, MD
Internal Medicine

Photo: Nazia Khan, MD

Dr. Nazia Khan, an assistant professor in the UNLV School of Medicine Department of Internal Medicine, received her medical degree at Dow Medical College in Pakistan.

Board certified in internal medicine by the American Board of Internal Medicine, she completed a residency at the University of Nevada Reno School of Medicine.

Her research includes work done at the LDS Hospital Cardiovascular Research Division in Salt Lake City, UT. 

Doctor Cardiology & Pulmonology

Kush D. Modi, MD
Internal Medicine, Pulmonology

Photo: Dr. Modi

Dr. Kush Modi, an assistant professor in the UNLV School of Medicine Department of Internal Medicine, received his medical degree Gujarat University in Ahmedabad, India.

He completed his Masters in Public Health at Drexel University. He completed residency in internal medicine at Drexel University and a fellowship in pulmonary and critical care at State University of New York at Buffalo.

Dr. Modi is associate fellowship program director for pulmonary and critical care at the UNLV School of Medicine.

(702) 671-6476 Office
Doctor Cardiology & Pulmonology

Joseph Nagan, DO
Internal Medicine

Photo: Joseph Nagan, DO

Dr. Joseph Nagan, an osteopathic physician who underwent fellowship training in pulmonary and critical care medicine at the UNLV School of Medicine, where he is now an assistant professor of internal medicine in the pulmonary and critical care division, practices his specialty of  high acuity critical care at University Medicine Center. 

Born in San Francisco, he did his undergraduate work at the University of California at San Diego and worked for two years as an EMT after graduation. 

He earned his DO degree at Touro University California.

Doctor Gastroenterology & Rheumatology

Gordon Ohning, MD
Internal Medicine, Gastroenterology

Photo: Gordon Ohning, MD

Dr. Gordon Ohning, a professor in the UNLV School of Medicine Department of Internal Medicine, graduated from the Case Western Reserve University School of Medicine

He completed a residency in internal medicine at the University of Iowa and a fellowship in gastroenterology from UCLA. 

After 30 years as a professor at UCLA — he also was a prolific researcher with the CURE: Digestive Diseases Research Center there — Ohning said the opportunity to help create the new UNLV School of Medicine was too good to pass up. 

Office: 702-671-6471
Doctor Residents & Fellows

Jahan Riaz, MD
Internal Medicine

Photo: Jahan Riaz, M.D.

Dr Jahan Z Riaz is a graduate of Quaid-e-Azam Medical College,Pakistan. He did Internal Medicine Residency Training at St Agnes Hospital, Baltimore, Maryland.

Dr. Riaz has worked as a Hospital Medicine Specialist at Jefferson Regional Medical Center, Pine Bluff, Arkansas and the Veterans Hospital, that is also in Little Rock. He has served as a part-time Clinical Instructor at the University Of Arkansas for Medical Sciences. He is currently working as an Assistant Professor and Attending Physician at the University of Nevada, Las Vegas School of Medicine.

(702) 671-2232 Office
Doctor Cardiology & Pulmonology

Arthur O. Romero, MD
Internal Medicine, Pulmonology

Photo: Arthur O. Romero, M.D.

Dr. Arthur Oliver Romero, an assistant professor in the UNLV School of Medicine Department of Internal Medicine, graduated from the University of Philippines College of Medicine. 

He specializes in pulmonary critical care medicine and internal medicine.

Dr. Romero is board certified by the American Board of Internal Medicine in pulmonary disease, critical care medicine and internal medicine.

(702) 671-2357 Office
Doctor Residents & Fellows

Ashley Sarasan, MD
Internal Medicine

Photo: Ashley Sarasan, MD

Dr. Ashley Sarasan, who completed a fellowship in geriatrics at the Mayo Clinic, is a UNLV School of Medicine Assistant Professor of Internal Medicine with clinical interests that include Parkinson’s disease, end of life care and Alzheimer’s disease.

A graduate of India’s M.S. Ramaiah Medical College, Dr. Sarasan completed her residency in internal medicine at Saint Peter’s University Hospital, a major clinical affiliate of Rutgers  Biomedical and Health Sciences in New Jersey.

Doctor Residents & Fellows

Aditi Singh, MD
Internal Medicine

Photo: Aditi Singh, MD

Dr. Aditi Singh, an associate professor in the UNLV School of Medicine Department of Internal Medicine, is associate medical director of the internal medicine residency program. 

A graduate of the University of Nevada Reno School of Medicine, she cares for patients in the areas of preventative medicine, diabetes, hypertension management and women’s health. 

Director of ambulatory education in the internal medicine program, Dr. Singh is board certified by the American Board of Internal Medicine. 

(702) 671-2325 Office
Doctor Residents & Fellows

Misti Song, MD
Internal Medicine

Photo: Dr. Misti Song

Dr. Misti Song, an assistant professor in the UNLV School of Medicine Department of Internal Medicine, received her medical degree from Loma Linda University. 

She is board certified in internal medicine by the American Board of Internal Medicine. 

Dr. Song completed a residency at the University of Nevada Reno School of Medicine.

She has more than 20 years of diverse experience. 

(702) 671-5060 Office
Doctor Residents & Fellows

John Varras, MD
Internal Medicine, Diabetes and Weight Management

Photo: John Varras, MD

Dr. John Varras, is a professor at UNLV School of Medicine Department of Internal Medicine. He attended medical school at Creighton University in Nebraska, where he also completed his residency. 

He is the former chair for the department of internal medicine at the University of Nevada Reno School of Medicine. Under his leadership, the department of internal medicine expanded the size of the residency training program and started three new fellowships in cardiology, gastroenterology, and pulmonary and critical care.

(702) 671-2345 Office
Doctor Residents & Fellows

Sandhya Wahi-Gururaj, MD
Internal Medicine

Photo: Sandhya Wahi-Gururaj, MD

Dr. Sandhya Wahi-Gururaj, an associate professor in the UNLV School of Medicine Department of Internal Medicine, is a board-certified general internist and currently serves as the internal medicine residency program director. 

A member of the American College of Physicians, Dr. Wahi-Gururaj has helped to shape curricula and training programs for local fellows and residents while maintaining a clinical presence that centers on establishing long-lasting, communicative relationships with her primary care patients.

(702) 671-2284 Office
Doctor

Miracle Wangsuwana, DO, MS
Neurology

Photo: Miracle Wangsuwana, DO, MS

Dr. Miracle Wangsuwana offers a full scope of general adult neurological care, he most often sees patients diagnosed with epilepsy, multiple sclerosis, migraines, headaches and carpal tunnel syndrome.

Office: 702-671-5079  
Assistant: Mandy.Canales@unlv.edu
Doctor Residents & Fellows

Ji Won Yoo, MD, MS
Internal Medicine, Geriatrics

Photo: Ji Won Yoo, MD

Ji Won Yoo, MD, is a Korean-speaking clinician and health service researcher with a long-term goal to improve decision-making processes and clinical outcomes for vulnerable adults who can easily lose their healthy and happy lives. As a primary care physician and geriatrician, he provides both ambulatory and inpatient care services. He also participates in various formal and informal clinical research mentoring activities for medical students, postgraduate trainees, and visiting scholars at University of Nevada Las Vegas School of Medicine and School of Public Health.

(702) 671-6496 Office
Article Cardiology & Pulmonology

Dr. Amber Champion is a Champion for Her Patients

Endocrinologist Dr. Amber Champion

If you ask Dr. Amber Champion why she’s now a UNLV Medicine endocrinologist with an emphasis in diabetes, she begins by telling you a story that’s set in Australia, a story about an abnormally hungry 27-year-old medical student who ended up in the emergency room with blurry vision and an unquenchable thirst — a young woman whose car broke down, whose bicycle burned up.