About Us

Our Physicians

Rami Arfoosh, M.D. FCCP, FAASM

  • ABIM – Internal Medicine Board Certified
  • ABIM – Pulmonary Medicine Board Certified
  • ABIM – Sleep Medicine Board Certified
  • ABIM – Critical Care Medicine Board Certified

Rachel Nisbet, M.D.

  • ABIM – Internal Medicine Board Certified
  • ABIM – Pulmonary Medicine Board Certified
  • ABIM – Critical Care Medicine Board Certified

Kimtuyen Nguyen, M.D.

  • ABIM – Internal Medicine Board Certified
  • ABIM – Pulmonary Medicine Board Certified
  • ABIM – Critical Care Medicine Board Certified

Malik Malik, M.D.

  • ABIM – Internal Medicine Board Certified
  • ABIM – Pulmonary Medicine Board Certified
  • ABIM – Sleep Medicine Board Certified
  • ABIM – Critical Care Medicine Board Eligible

Nadia Yimer. M.D.

  • ABIM – Internal Medicine Board Certified
  • ABIM – Pulmonary Medicine (Board Eligible)
  • ABIM – Critical Care Medicine (Board Eligible)

Our Advanced Practice Providers

Jami Jefferson, FNP-C

Jami received an Associate’s Degree of Science from Gainesville College in 2001. She then went to Brenau University where she obtained her Bachelor’s of Science in Nursing in 2003. She began her nursing career at Gwinnett Medical Center in the Emergency Department as an adult and pediatric nurse, becoming trauma specialized with TNCC and CEN certifications. While working at Gwinnett Medical, Jami completed her Master’s Degree as a Family Nurse Practitioner from Brenau University in 2015.

Jami is from Winder and is proud to work in her hometown. She has one daughter and being a mother is what she loves most. She loves spending time with her family. She is a member of First United Methodist Church of Winder.

Mary Owens, PA-C

Mary Owens is a certified Physician Assistant that joined Pulmonary and Sleep Specialists of Northeast Georgia in 2021. She completed her undergraduate studies at Florida State University, where she earned a Bachelor of Science degree in Biology. She then went on to attend Florida State University’s School of Physician Assistant Practice, where she graduated with her Master of Science degree in Physician Assistant Practice.

Mary is a board-certified Physician Assistant that is dedicated to improving the lives of her patients.

Varin Sachhathep, PA-C

Varin Sachhathep is a certified physician assistant who joined Pulmonary and Sleep Specialists of Northeast Georgia in September 2021. He completed his undergraduate studies at the University of Georgia where he earned a Bachelor of Science degree in Biology. He then went on to attend South University’s Physician Assistant Program, where he graduated with a Master of Science in Physician Assistant Studies in 2020.

In his spare time, Varin loves to cook, garden, travel and spend time with his friends and family. He is excited for the opportunity to make a positive impact in the lives of his patients.

Samiha “Mia” Ahsan, PA-C

Mia was born and raised in Oak Ridge, TN. After getting her Bachelor of Science degree in Biochemistry and Cellular Molecular Biology from the University of Tennessee, she graduated with a Master of Health Sciences from the Physician Assistant program at South College in Knoxville. In her free time, she likes baking, knitting, crocheting, hiking, and spending time with her family and cat. She looks forward to helping patients progress and reach their goals!

Cedricka Thomas, FNP-BC

Cedricka earned her BSN from Valdosta State University and dedicated 7 years to her role as a Registered Nurse. She later achieved her MSN, specializing as a Family Nurse Practitioner from Kennesaw State University. She joined Pulmonary and Sleep Specialists of Northeast Georgia in early 2023.

With Georgia as her lifelong home, she treasures moments spent with her family and has a genuine passion for cooking. Her vibrant son ensures that every day is an active one, keeping her constantly on her toes. Guided by the principle of treating others with the same care she’d want for herself, Cedricka remains resolute in her mission to create a positive and transformative impact on her patients’ lives.

Carlyn Hamilton, FNP-C

Carlyn was born and raised in NY. She received her bachelor’s degree in nursing in 2006 from Lehman College in NY. She began her nursing career at Northshore-LIJ on the orthopedic/surgical unit. In 2015, Carlyn relocated to Georgia, where she dedicated her skills to home health, serving various communities. While working for Piedmont home health, she completed her master’s degree as a Family Nurse Practitioner from Walden University in 2022. She joined Pulmonary and Sleep Specialists of Northeast Georgia in early 2023.

Carlyn is married with two daughters and is an active member of New Bethel AME church, serving on the liturgical dance ministry team. She cherishes moments spent with her family, enjoys cooking, and has a passion for travel.

Carlyn is eager and dedicated to making a positive impact in her patients’ lives.

Justin Mukhalian PA-C

Justin is a Florida native who grew up in Lakeland, where he developed a passion for helping others and an interest in the medical field. He began his medical career as a combat medic in the US Army. After completing his military service, Justin pursued higher education, earning a Bachelor of Science in Biology from Florida Southern University. His academic journey continued with a Master’s program at Georgia Southern University.

Driven by a commitment to provide excellent patient care, Justin graduated from St. Bonaventure University’s Physician Assistant (PA) program in 2024 and joined our practice shortly thereafter. His diverse experiences and rigorous training have equipped him with a unique perspective and a strong foundation in patient care.

Outside of his professional life, Justin is an outdoor enthusiast. He enjoys spending quality time with his fiancée and their dog, exploring nature trails, and embarking on camping adventures. His love for travel has taken him to various parts of the world, where he delights in immersing himself in new cultures and savoring different cuisines. Justin’s well-rounded background and his dedication to both his profession and personal interests make him a valued member of our team.

Our Medical Services

Pulmonary & Sleep Specialists of Northeast Georgia treat all kinds of breathing and sleep problems. We provides and arranges for a wide range of diagnostic and therapeutic options for pulmonary diseases and sleep disorders in both out-patient and in-patient settings including the following:

  • Flexible Bronchoscopy
  • Pulmonary Function Tests
  • X-Ray Services
  • Allergy Testing
  • Sleep Studies
  • Thoracentesis (Pleural fluid aspiration)
  • Chest Tube Insertion
  • PleurX Catheter Placement
  • Endobronchial Ultrasound (EBUS)
  • Navigational Bronchoscopy
  • Chest Ultrasound
  • Respiratory Biological Medications