Your Partners in Health

Kristine Pak

Chief Financial Officer
Kristine Pak is a Certified Public Accountant with over 25 years of private and public industry accounting experience. Previously, she was the Controller of P3 Health Partners which focused on delivering patient-centered care in Nevada and Arizona. Kristy is thrilled to be back in Texas to improve the quality of healthcare in the place she calls home. In her spare time, Kristy enjoys playing tennis and golf with family and friends.

Pedro Caretto

Director of Operations

Throughout the last 15+ years as an Executive Operations and Financial Director, Pedro has been integral to strategic operational initiatives that have influenced high-percentage cost-savings in Venezuela and Florida. While developing partnerships and utilizing business development efforts, he has been able to negotiate and manage contracts as well as provide vendor management.

As a leader, it has been critical to track and attain KPIs across multiple locations, while ensuring management-level support. While utilizing strategic and unique leadership techniques, Pedro has been able to achieve high employee retention throughout his career.


After leading a successful business in Florida, he welcomed a new opportunity in Texas, at Pak Medical Group.  When he is not at work, you can find him spending time with his wife and two children, enjoying the beautiful scenery Texas has to offer, while riding his motorcycle.

Rebecca Burnham, MHA

Director of Revenue Cycle Management
Rebecca Burnham has over 25 years of healthcare administration experiences which has included all aspects of revenue cycle management in multi-specialties.   She has a Bachelor of Arts from Otterbein College and a Masters of Healthcare Administration from Texas State University.  Rebecca is passionate about providing patient centered care which includes simplifying the billing process and making it easier for patients to pay.   In her free time, Rebecca enjoys spending time with family and friends, any and all water sports and traveling.

Allison Sonnenburg

Lead Front Desk

Allison has been with Pak Medical Group for a year. She loves being involved in the patient’s care and being able to talk, laugh, and sometimes even cry with them. She has been married for 17 years, and has been an Army wife for the last 15 years. Allison and her husband have a 14 year-old daughter and a 10 year-old son. They have lived in Texas, North Carolina, Colorado, Maryland, and Allison’s all-time favorite, Germany! Her family loves to travel, garden, play board games, but most of all she loves a good book on a rainy day!

Lauren Loftin

Project Coordinator
Lauren spent her early years in Bulverde before moving to East Texas. She earned her Bachelor of Business Administration and Master’s Business Administration at A&M-Texarkana. Lauren is thrilled to be back home in the Hill Country and part of such a fantastic at Pak Medical Group. She has multiple duties at PMG, Project Coordinator, Marketing, and working closely with Dr. Pak to ensure his workflow potential is maximized and efficient. When Lauren is not at work, she enjoys road trips to explore new places, spoiling her dogs, and activities with friends and family.

Veronica Harlan

Credentialing Manager
Veronica is Texan born and raised. She joined the USAF out of High School. Veronica met her husband of 32 years at Hickam AFB, Hawaii. Her husband served in the USAF for 25 years. During their time in the military they lived in Hawaii, Germany, North Dakota, New Mexico, Texas, Oklahoma, eventually retiring in San Antonio, Texas. They have a daughter who lives and works in San Antonio, two sons in the US Army, the oldest is an E-5 and the youngest is a 2nd Lieutenant. Veronica has been in the medical billing field for 16 years. She loves to travel and spend time with family and friends.

Amanda Ward

Practice Administrator

Amanda joined Pak Medical Group almost one year ago bringing with her more than 18 years of experience working in healthcare, a Bachelor’s Degree in Healthcare Administration, and a Master’s Degree in Management & Leadership. With an undeniable passion for PMG’s patients, clinicians, and her team, Amanda pours her heart into the growth and success of PMG every day. She is a triplet and a native Texan. She loves time with her family, traveling, cooking, and spoiling her Shih Tsu, Minnie.