919 12th Place, Suite 12, Prescott, AZ 86305
(480)591-8225
prescott@nimbushealth.com
M - F 8.30 am - 5.00 pm
We are located approximately half a mile from Dignity Yavapai Hospital. From Willow Creek Rd, you will turn onto 12th Place and go slightly uphill, then turn left at Twelfth Place Medical Center. We are the first building straight ahead next to Recovery in the Pines.
We accept all major insurers to ensure that quality healthcare is accessible and affordable for everyone. Contact us to verify your coverage and learn how we can support your health needs.
Shannon Valenzuela MD is a board-certified pulmonologist. She received her undergraduate degree at Arizona State University. She completed medical school at University of Arizona. She has over 25 years of experience. She loves caring for her patients and remains dedicated to her practice. An Arizona native, she was born and raised in Prescott. She is married for 30 years and blessed with 2 amazing daughters. She loves traveling, reading, and the outdoors!
Dr. Jonathan Eytan Marcus is a board-certified Pulmonary and Critical Care Physician based in Boca Raton, Florida. He graduated from Yeshiva University and Rutgers Robert Wood Johnson Medical School and joined ICC Healthcare in 2008, where he rapidly advanced to Chief Medical Officer. As CMO, he led the development of clinical programs, standardized protocols, and a quality-focused intensivist program, ultimately growing ICC to be the largest Intensivist Group in the U.S., with over 500 providers.
Following ICC's acquisition by HCA Healthcare, Dr. Marcus played a key role in integrating ICC’s protocols into HCA’s national critical care platform. He contributed to numerous quality initiatives, created a national ICU dashboard for real-time outcomes monitoring, and established a fellowship program training over 2,200 critical care physicians. From 2011 to 2015, he also led Nuview Healthcare's Tele-Intensivist Group and developed the model for HCA’s Tele-ICU Network.
In 2018, he founded Optimum ICU Solutions, consulting on critical care program development for hospitals. During the COVID-19 pandemic, Dr. Marcus served as a Critical Care Specialist at Delray Medical Center and was appointed Director of Clinical Operations for The Genesis Group. He also joined Robotic Critical Care Services as a tele-intensivist and tele-pulmonologist.
Dr. Marcus, a recognized leader in Clinical Informatics, has developed critical care decision-making algorithms and served on multiple HCA leadership committees. He lives in Boca Raton with his wife and five children and enjoys competitive basketball, painting, landscape design, cooking, and reading.
Dr. Andrew Freedman is board-certified in Pulmonary Medicine, Sleep Medicine, Critical Care Medicine, and Internal Medicine, and has been in practice for over 35 years.
- MD degree Rutgers-New Jersey Medical School in 1979
- Medicine Residency-University Hospital affiliated program, Newark, NJ
- Chief Resident, Medicine-Newark Beth Israel Medical Center.
- Pulmonary Fellowship-Temple University Hospital, Philadelphia, Pennsylvania
- Pulmonary Research Fellowship-Robert Wood Johnson University Hospital, New Brunswick, NJ
After completion of his training in 1985 Dr. Freedman entered private practice in New Jersey, with a primary hospital affiliation with Robert Wood Johnson University Hospital, New Brunswick, NJ. Since 2014, anticipating the future transformation of the health care landscape, he has been actively involved in the delivery of health care through telemedicine. Licensed now in many states and internationally, Dr Freedman is looking to explore and expand the reaches of telemedicine. Presently he is affiliated with Pulmonary and Sleep Medicine Group LLC and Robotic Critical Care Services.
Vanessa Frazier, FNP-C, is a board-certified Family Nurse Practitioner with a robust foundation in critical care nursing. She obtained her Bachelor of Science degree from Ashland University and advanced her studies at The University of Phoenix, where she received a Master of Science degree. Certified by the American Academy of Nurse Practitioners, she possesses significant expertise in surgical intensive care nursing, which enhances her comprehension of pathophysiology. In 2021, Vanessa moved to Arizona with her husband, and she enjoys traveling, outdoor activities, and the performing arts.
Our pulmonologists expertly manage a wide range of chronic respiratory diseases, with a focus on improving long-term outcomes for our patients.
When acute symptoms arise, we prioritize same-day clinic visits, as we believe early intervention leads to the best outcomes.
Our comprehensive pulmonary function tests assess lung capacity and function, helping to diagnose and monitor a range of respiratory conditions. This testing is conveniently performed during your office visit.
We offer convenient at-home sleep studies to diagnose sleep-related breathing disorders, including sleep apnea.
Our comprehensive program offers personalized support, proven strategies, and expert guidance to help individuals quit smoking for good and improve their long-term health.
A minimally invasive procedure that allows our pulmonologists to diagnose and treat a variety of lung conditions with precision.
Pulmonary rehabilitation combines exercise training, education, and support to strengthen lungs, reduce symptoms like breathlessness, and increase stamina. This program is ideal for those with COPD, asthma, or other chronic lung diseases, and can mitigate lung function decline.
