- Old Town Scottsdale: (480) 949-9333
- Camelback & 101: (623) 777-1720
- Camelback: [Phone Number]
- Scottsdale: [Phone Number]
Call Us
Old Town Scottsdale:
Camelback & 101:
Old Town Scottsdale:
Camelback & 101:
Our providers work together across both offices to ensure consistency and coordinated care. Each member brings clinical expertise and a commitment to long‑term patient relationships.
Punnaiah Marella, MD
Co‑Founder, Internal Medicine Physician
Board Certified, American Board of Internal Medicine
Dr. Marella brings extensive experience in preventive care and chronic disease management. He trained at Osmania Medical College in India and completed his residency at Michigan State University, Hurley Medical Center. He has contributed to medical publications and emphasizes continuity of care for diverse patient populations.
Shantipriya Siripurapu, MD
Co‑Founder, Internal Medicine Physician
Board Certified, American Board of Internal Medicine
Serving Phoenix since 2007, Dr. Siripurapu is recognized for her attentive approach and precise diagnostic evaluation. She trained at Government Medical College, Nagpur, India, and completed her residency at Hurley Medical Center in Michigan.
Samantha Ross, PA‑C
Physician Assistant
Certified by the NCCPA
Ms. Ross provides comprehensive adult primary care, with expertise in preventive medicine, acute care, and chronic condition follow‑up. She is licensed by the Arizona Regulatory Board of Physician Assistants and is committed to structured, evidence‑based patient management.
Hannah Hugo, PA‑C
Physician Assistant
Certified by the NCCPA
Ms. Hugo focuses on preventive medicine and chronic disease management. She trained at Alderson Broaddus University in West Virginia and is licensed by the Arizona Regulatory Board of Physician Assistants. She is dedicated to accurate evaluation and long‑term patient relationships.
Reilly Yeager, PA‑C
Physician Assistant
Certified by the NCCPA
Ms. Yeager provides primary care with emphasis on preventive health and patient education. She trained at Midwestern University in Glendale, AZ, and is licensed by the Arizona Regulatory Board of Physician Assistants. She is committed to accessible and coordinated care.
Juliana Petrovic, PA‑C
Physician Assistant
Certified by the NCCPA
Ms. Petrovic offers adult primary care with a strong focus on preventive health and community wellness. She trained at Chamberlain University and was recognized with the Excellence Award for commitment to patient care. She is licensed by the Arizona Regulatory Board of Physician Assistants.
Kathryn Hamman, PA‑C
Physician Assistant
Certified by the NCCPA
Ms. Hamman provides preventive and primary care with emphasis on long‑term patient relationships. She trained at Northern Arizona University and is licensed by the Arizona Regulatory Board of Physician Assistants. She is dedicated to structured, evidence‑based care.
Isabella Anderson
Physician Assistant
Certified by the NCCPA
Isabella was raised in Kingman, Arizona, and earned her Bachelor of Science in Biomedical Sciences from Northern Arizona University before completing her Master of Physician Assistant Studies at South College. She is certified by the NCCPA and licensed by the Arizona Regulatory Board of Physician Assistants. After her training, she returned to Arizona and is now based in Scottsdale, where she provides compassionate, patient-centered care. Outside of work, she enjoys staying active and spending time with family and friends, with a strong passion for helping patients live healthier lives.
We are committed to clear, evidence‑based care that supports long‑term health. Our goal is to provide preventive guidance, accurate evaluation, and structured management of chronic and acute conditions, ensuring continuity and confidence for every patient.
Scottsdale:
Camelback: