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Andrea received BA degree at Doane college with honors. Worked in lab for cytogenetics while studying at University of Colorado Child Health Associate/physician assistant program. Graduated with master’s degree. She has been blessed with opportunity in primary care and specialty allowing continued growth. Inspired by patients’ and colleagues with their insight and enjoy educating patients to allow active involvement in their health care. Andrea is an advanced practitioner who feels passionate to keep updated on new medical advances, provide great care along with respect and dignity to the individual patient. Received the Distinguished Fellowship Award from American Academy of Physician Assistant. Appointed in Empire's Who's Who Among Executive and Professional Women in Healthcare. Andrea treasures moments with her adult sons, family and friends. Traveling and cruising are some activities she finds relaxing. Enjoys quilting and trying to give back to the community, when possible.

Douglas Hallmark, MD, is an experienced and highly respected family medicine practitioner at Douglas Family Medicine who is delighted to be serving the population of Castle Rock, Colorado, and the surrounding areas.

Dr. Hallmark grew up in Colorado, graduating from Arapahoe High School in Centennial in 1970. He graduated magna cum laude with a degree in Chemistry from Baylor University in Waco, Texas, then pursued his medical degree at the University of Texas Medical Branch (UTMB) in Galveston. Dr. Hallmark graduated from UTMB in 1979 and practiced in East Texas for the next 10 years.

Dr. Hallmark’s life-long desire was to be a small-town family doctor who not only served his patients but developed close relationships with them. He has achieved this goal in his practice of medicine in Castle Rock for the past 20 years, providing exceptional medical care that recognizes the importance of treating every patient as a unique individual. By combining his considerable experience of primary care with the latest advancements in medicine, Dr. Hallmark is able to offer residents of Castle Rock the most up-to-date treatments available with the personal touch of hometown care.

Dr. Hallmark and his wife, Marie, have been married for over 30 years and have six children and one grandson.

Jodie Gahn-Stahley began her health-care career in 1990 as a US Fleet Marine Force Corpsman where she treated Navy and Marine Corps personnel and their families at Camp Pendleton, CA and Naval Medical Center San Diego, CA. After four years, she separated from active duty and continued her military career in the US Naval Reserves supporting Fleet Hospital 23, Field Medical Unit as a combat medical technician. 

Jodie grew up in southeastern Wisconsin and attended the University of Wisconsin- Madison for undergraduate training in 1995. While pursuing her degree, she worked as a multi-specialty medical assistant at Dean Medical Center in Madison, Wisconsin. Her physician assistant training was completed at College of Osteopathic Medicine - Des Moines University. Since then, she has been dedicated to providing quality and cost- effective health care in the South Denver Metro area. Her outpatient medical practice spans the pediatric through geriatric 

population with a focus on preventative medicine, disease management and urgent care. 

In her personal time, she and her husband, John, enjoy a multitude of outdoor adventures whether hiking in the forest or boating and fishing in Colorado's mountain lakes and streams with their two dogs Max and Elke. An aspiring home chef and foodie, Jodie is known to whip up a tasty meal for her family and friends. 

Sarah Sato, NP, is a board-certified nurse practitioner and one of the co-founders of The Alpine Center for Diabetes, Endocrinology, and Metabolism, PC located in Superior, Colorado. Sarah completed a Bachelor of Arts in Communications at The George Washington University in Washington, DC. She went on to earn both her Bachelor of Science and Masters of Science in Nursing at Columbia University in New York City, where she was part of the Sigma Theta Tau Honors Society. As part of her training, Sarah worked as a registered nurse at the Manhattan Children's Center and student nurse practitioner at the Neighborhood Family and Health Center in the Bronx.

After completing her training, Sarah worked as a nurse practitioner at several facilities in Colorado, before starting The Alpine Center for Diabetes, Endocrinology, and Metabolism, PC in 2019. Sarah is board certified and holds both a Registered Nurse and Nurse Practitioner license in the state of Colorado and is a Certified Diabetes Educator. She has independent prescriptive authority and holds a Drug Enforcement Administration certificate, which allows her to prescribe medication for patient treatment.

David R Zimmermann, is Colorado Recovery Solutions Chief Operating Officer (COO). He leads the Operations Team at Colorado Recovery Solutions in Colorado Springs, Colorado, to assist patients improve their mental health, provide alternatives to treatment resistant conditions, and give patients a different and more holistic pathway to life-changing treatments.

David graduated from the University of Colorado - Colorado Springs with a Bachelor of Science in Biology. He also has two Associates Degrees in General Studies from Pikes Peak State College and in Applied Science for Allied Health / Practical Nursing from the Community College of the Air Force.  He is also a Veteran that served as an active-duty Air Force Medic in several different assignments. His specialties were Family Health as an Aerospace Medical Technician and Flight Medicine as a Flight and Operational Medical Technician. He worked closely in face-to-face patient care, clinical operations, headquarters medical management working groups and as a proficient first-responder out-in-the-field. He has also worked as an Emergency Medical Technician, Fire Fighter, Security and Parking Operations for different companies. His next goal is to get his Masters in Nursing with a specialty focus in Psychiatry.

His love for family, friends, nature, faith, science and his subjective life experiences have also inspired him to pursue a career in Advanced Clinical Psychiatry. He deeply relates to those suffering from all forms of mental health conditions and portrays a compassionate and empathetic care to finding a long-lasting or permanent healing.

He is a fluent Bilingual Spanish speaker, who is very proud to come from Central America. His other passion in the medical realm is to assist those that only speak Spanish or that speak very little English, to understand the full scope of their conditions and plan of care. As an immigrant himself, he personally witnessed the lack of resources and dire need in our immigrant communities, and wants to make an impact in where those services and resources are needed the most.

He loves caring for others and treating everyone with respect, dignity, humility and confidence. He is very happy to be leading the Operations Team at CRS and to harvest a community of empathetic professionals that are spearheading the way in our modern Mental Health Crisis with edge-cutting treatments and techniques.

Anjmun Sharma, MD, is a highly experienced physician at Venus Medi Spa in Colorado Springs, Colorado, bringing over 20 years of specialized patient care to the practice. His extensive medical background includes expertise in family practice, occupational medicine, urgent care, plasma medicine, administrative medicine, and aesthetic medicine.

Dr. Sharma began his academic journey at SUNY College at Geneseo, where he earned his Bachelor of Science in Biochemistry in 1992. He furthered his education by earning a Master of Science in Pharmacology from SUNY Buffalo School of Medicine and Biomedical Sciences in 1995. He went on to earn his Doctorate of Medicine from Ross University School of Medicine in 2002.

Following his medical degree, Dr. Sharma completed a general surgery residency at St. Vincent’s Manhattan, Howard University Hospital in Washington, DC, and a practice in Greenville, South Carolina, before completing a family medicine residency at Grant Medical Center in Columbus, Ohio. His dedication to advancing his medical knowledge and skills is reflected in his broad expertise and diverse clinical experience.

Dr. Sharma is a member of the American Board of Family Medicine and is committed to providing personalized, high-quality care to his patients. He is dedicated to helping patients manage and improve their health using the latest diagnostic and treatment options available.