Our Providers

Robert J Bloomberg, MD PhD

Born in Montreal, Quebec, Canada, Dr. Bloomberg completed his undergraduate education in Montreal. Dr. Bloomberg earned his Doctorate in Biochemistry at University of Wyoming and completed his fellowship at Purdue University. He earned his Medical Doctorate degree from McMaster University in Hamilton, Ontario. Dr. Bloomberg completed his residency training at Georgetown University Hospital in Washington, DC.

Dr. Bloomberg served as Chief Medical Resident in the McMaster University Hospital System in Hamilton, Ontario from 1979-80. He opened his private practice of Internal Medicine in Tempe, Arizona from 1980 to the present time. Dr. Bloomberg has been elected and appointed for numerous hospital staff positions, including Chief-of-Staff at Desert Samaritan Medical Center, Chairman of the Departments of Medicine, Infection Control and Pharmacy & Therapeutics.

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Joshua Bloomberg, DO

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Dr. Josh Bloomberg has been an internist in the Premier Medical Group since the summer of 2019. Prior to this he served honorably as an internist in the United States Navy from 2012 to 2019, earning the rank of Lieutenant Commander and a Navy Medal of Commendation for outstanding primary care provided to the Joint Task Force at Guantanamo Bay, Cuba. He is a graduate of the internal medicine residency at Naval Medical Center Portsmouth, VA, and is board certified in internal medicine. During his residency, he earned an award for clinical excellence on his Intensive Care Unit Rotation. He scored at the top of his class on all his in-service training medicine exams and well above average on his national board specialty exam. He graduated from Touro University, NV, Medical School and the University of California, Berkeley, where he earned a bachelors in English. His special interest includes intra-articular corticosteroids for joint diseases and botox for migraine headaches.

Samira Zamani, DO

Dr. Zamani has been an internist in the Premier Medical Group since the summer of 2019. Prior to this she served honorably as an internist in the United States Navy from 2012 to 2019, earning the rank of Lieutenant Commander. She graduated from the internal medicine residency at Naval Medical Center Portsmouth and is board certified in internal medicine. She attended Bryn Mawr College as an undergraduate and majored in chemistry. She completed medical school at Touro University, NV. Her special interests include botox for migraine headaches, osteopathic musculoskeletal manipulation, and geriatric medicine. She also offers medical acupuncture and treats a wide range of conditions.

Sue Hsieh, NP

Sue Hsieh left a promising career in mathematics to enter the health field, believing that good health enables us to achieve the best. She has worked as an open heart surgery ICU nurse for almost 15 years and is also a certified critical care nurse. Heart related questions such as how to control blood pressure, cholesterol, or how to prevent heart disease are her expertise. Wanting to expand her scope of work, Sue earned her Masters in Science, with a certificate in Family Nurse Practitioner, from Grand Canyon University. With each patient, Sue’s vision is: Treat everyone with compassion, dignity, and respect. Keep the patient as the highest priority. Strive to provide the highest quality care.

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Brittany West, PA-C

Born and raised in Arizona, Brittany  graduated from Arizona State University with a Bachelors in Kinesiology.  She then went on to Mississippi College in Clinton, Mississippi where she obtained a Masters in the Science of Medicine along with her Physician Assistant certification.  She has been practicing in Family Medicine in Arizona for over 6 years.  She has a special interest in Orthopedic injuries, womens health, and dermatological procedures.  

Killian Norton, PA-C

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Killian was raised in a small community in North Dakota where his father was the county sheriff, and his mother ran the only local café. Being raised in such a rural area, Killian learned the importance of developing close relationships with everyone around him. With a grandfather that served in World War Two, a father that served in Vietnam, and very few options, Killian left North Dakota at age 18 and joined the United States Army. He served as a Special Operations Combat Medic for the 75th Ranger Regiment on two tours in Afghanistan for Operation Enduring Freedom. This military experience is where he developed his passion for medicine and the desire to help others. After his discharge from the military, he returned to North Dakota to attend school to become a physician assistant, and this is where he met his wife. Shortly after graduating, he decided to start his career in family medicine in Southern Oregon for two years and worked in Neurosurgery and Spine for roughly a year. Outside the office, he enjoys spending time with his wife Lacey, son Truett, and two ill-mannered but extremely loved dogs. They frequent local restaurants and trails regularly (without the dogs).