Meet Our Providers

Meet our experienced primary care providers Dr. Siri and Dr. Marella. Assisted by PA, Paige.
They are knowledgeable in the medical field and care about their patients.
They take the time to answer your questions and make sure that you receive the treatment you need.

Dr. Shantipriya Siripurapu, MD

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Dr. Shantipriya Siripurapu is an attentive internist serving the community of Phoenix since 2007. Dr. Siripurapu obtained her medical degree from Government Medical College Nagpur, India. She completed her residency in internal medicine at Hurley Medical Center in Michigan.

Dr. Siripurapu is the co-founder of Phoenix Internal Medicine. She is board certified by the American Board of Internal Medicine. Dr. Siripurapu is trilingual in English, Hindi, and Telugu.

Dr. Siripurapu is sensitive to the uniqueness of each patient’s situation and adapts her consultations and treatment options appropriately to accommodate individual needs and concerns. She is deeply committed to the well-being of her patients. She takes a thorough and precise approach to her consultations to ensure that she is consistently giving accurate diagnoses

Dr. Punnaiah Marella, MD

Dr. Punnaiah Marella attended Osmania Medical College in India where he completed his medical degree as well as an internship. He further completed his internal medicine residency in internal medicine at Michigan State University, Hurley Medical Center. His sound medical knowledge and passion towards his work are commendable and makes him a valued asset at the practice.

Fluent in English and Telugu, Dr. Marella looks after the diverse population of Phoenix, AZ. He brings extensive experience to his role at Phoenix Internal Medicine, where he always provides comprehensive care to his patients and emphasizes preventative care for all.

In addition to pursuing his clinical career, Dr. Marella has published articles and book chapters that focus on various topics in medicine. He also holds certification from the American Board of Internal Medicine. A dedicated provider, he invests in educating visiting individuals about their health and how they can make changes in their daily life to ensure healthy living.

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Paige, Physician Assistant

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Paige is an Arizona transplant who moved from Utah to complete her education to become a Physician Assistant and decided to stick around and enjoy all the great things Arizona has to offer. She is certified by the National Commission on Certification of Physician Assistants and holds a license to practice as a Physician Assistant in Arizona. Paige is a member of the American Association of Physician Assistants and Arizona State Association of Physician Assistants.

She attained her Associates of Science degree from Southern Utah University and Bachelors of Science degree in Health Information Management from Weber State University in Utah. She finished out her education at Midwestern University in Glendale, AZ where she obtained a Masters of Medical Science in Physician Assistant Studies. She previously worked in Internal Medicine in Yuma, AZ prior to joining Phoenix Internal Medicine.

Paige strives to deliver high quality, empathetic care to all of her patients. She focuses on educating patients so they are equipped with the understanding needed to make the best decisions and necessary changes for their health.

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