14300 W. Granite Valley Dr. Ste E-23, Sun City West, Arizona, 85375
623-975-0705
suncitywest@nimbushealth.com
M - F 8.00 am - 5.00 pm
From W Meeker Blvd, turn onto W Granite Valley Dr. Take the next right onto N Datchler Dr, and then an immediate left onto W Shumway Dr. Nimbus Health is located in the second plaza on the left hand side in Suite E23. The buildings have large letter labels; ours is in the back of the plaza, continue until you see “E”.
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!
Board certified in pulmonary disease, sleep medicine, and internal medicine, Dr. Rundbaken is a Fellow of the American College of Osteopathic Internists and the College of Chest Physicians. After earning his doctorate at Des Moines University, he completed his residency in internal medicine at Garden City Community Hospital, in conjunction with Michigan State University, and his Pulmonary Fellowship at Botsford General Hospital in Farmington Hills, Michigan.
Since his move to Arizona in 1997, Dr. Rundbaken has served as a general pulmonologist treating a variety of pulmonary disorders, including COPD, asthma, lung nodules, Valley Fever, and non-tuberculosis mycobacterial (NTM) infections, both of which are more prevalent in our region. When required for diagnoses, bronchoscopies are performed at Banner Health facilities. He is also the author of Valley Fever: The Silent Epidemic, a book that sheds light on this often misdiagnosed and overlooked disease.
Dr. Rundbaken schedules in-office patient visits Monday through Friday.
Melanie Anderson, MSN, AGNP-C, CCRN, CV-BC, is a board-certified nurse practitioner with extensive experience in critical care and sleep medicine. She is currently completing a post-graduate diploma in sleep medicine from the University of Oxford. Melanie holds a Master of Science in Nursing degree from Duke University and she graduated summa cum laude with her Bachelor of Science in Nursing from Arizona State University. Her career has included experiences in cardiac intensive care, trauma, neuro critical care, transplant medicine, and high acuity respiratory failure. Additionally, she has a strong background in sleep wellness, holding a certification in clinical sleep health. A passionate educator, Melanie has taught future nurses and sleep technologists. She holds multiple certifications, including board certifications in cardiac nursing and critical care. She is a founding board member of the Arizona Sleep Society and actively contributes to several professional organizations, including the American Association of Nurse Practitioners and the American Association of Critical Care Nurses.
Diana Puente Head, DNP, AGACNP-BC, CNP, CCRN is a board-certified Nurse Practitioner with a strong nursing background in critical care. She earned her Doctor of Nursing Practice from the University of Arizona and a BSN from Grand Canyon University. With nearly a decade of experience caring for critically ill adults, Diana is known for her compassionate, patient-centered approach and dedication to education and support.
She is a member of The American Association of Critical-Care Nurses and The Association of Pulmonary Advanced Practice Providers. Bilingual in English and Spanish, Diana also mentors future nurses as a clinical faculty member. Outside of work, she enjoys life with her husband and two daughters.
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.
Asthma is a common lung disease that is characterized by inflammation and narrowing of the airways in the lungs. Symptoms of asthma include wheezing, coughing, chest tightness, and shortness of breath.
Bronchiectasis is a chronic lung condition in which the airways become enlarged and prone to infection. Patients with bronchiectasis often present with a chronic productive cough and frequent lung infections.
A chronic cough is a cough that lasts more than 2 months. Chronic cough has a wide variety of causes, but it is often due to lung conditions, such as asthma or COPD.
COPD, or chronic obstructive pulmonary disease, is a broad term used to describe obstructive lung diseases including emphysema and chronic bronchitis. COPD is characterized by shortness of breath, chronic cough, and excessive sputum production. COPD is frequently associated with cigarette smoking.
Hypoxia refers to inadequate delivery of oxygen to the tissues. Hypoxia is frequently caused by chronic lung diseases. Home oxygen is commonly prescribed for this condition.
ILD, or interstitial lung disease, refers to a large group of lung diseases that involve the lung tissue around the alveolar air sacs. ILD often involves pulmonary fibrosis (scarring of the lungs).
Lung Nodules are small rounded growths in the lung. They are frequently benign but may require further testing to exclude malignancy.
Pneumonia is an infection of the lungs. Pneumonia can be caused by a variety of organisms including bacteria, viruses and fungi.
A pulmonary embolism occurs when a blood clot blocks flow through the blood vessels of the lung.
Valley Fever is a lung infection caused by inhaling spores of the Coccidioides fungus, found in dry, dusty areas like the southwestern U.S.
NTM is a group of bacteria found in soil and water that can cause lung infections, especially in people with weakened lungs or immune systems.
