Our Medical Team
Expert pulmonologists and respiratory specialists dedicated to your health
Our Medical Team
Providers
Dr. Douglas Mapel
Board Certifications: Pulmonary Disease (1994), Critical Care Medicine (1995), Internal Medicine (1991)
Research & Publications: Author or co-author of 97 peer-reviewed journal articles and two medical textbook chapters, with over 6,600 citations
Editorial Role: Associate Editor for the scientific journal Respiratory Medicine
Specialties: Critical Care, Advanced Pulmonary Disease Diagnostician and Management, Acute and Chronic Pulmonary Disease Management
Dr. Mapel is the founding partner of NAPA and has been serving the community and patients of Northern Arizona since 2009. In addition to his full-time clinical practice, he is active in clinical research and has made significant contributions to pulmonary medicine literature.
Dr. Elijah Poulos
Board Certifications: Pulmonary Disease, Critical Care Medicine, Internal Medicine
Education: Southeastern Louisiana University, Medical School from Louisiana State University, Residency & Fellowship from Good Samaritan Healthcare
Specialties: Critical Care, Advanced Pulmonary Disease Diagnostician and Management, Acute and Chronic Pulmonary Disease Management, Advanced Bronchoscopist
Dr. Poulos has been serving the community and patients of Northern Arizona since 2015.
Dr. Lisa Graham
Board Certifications: Pulmonary Disease, Critical Care Medicine and Internal Medicine
Education: Undergraduate from UCLA, Medical School from Georgetown University, Internal Medicine Residency at University of Arizona, Fellowship at Maine Medical Center
Specialties: Critical Care, Advanced Pulmonary Disease Diagnostician and Management, Acute and Chronic Pulmonary Disease Management, Advanced Bronchoscopist
Dr. Graham has been serving the community and patients of Northern Arizona since 2016.
Dr. Jennifer Hall
Board Certifications: Pulmonary Disease, Critical Care Medicine, Internal Medicine
Education: Miami University. New York College of Osteopathic Medicine, NOVA Southeastern University College of Osteopathic. Internal Medicine at Tripler Army Medical Center. Pulmonary & Critical Care Fellowship, Banner University Medical Center.
Specialties: Critical Care, Advanced Pulmonary Disease Diagnostician and Management, Acute and Chronic Pulmonary Disease Management, Advanced Bronchoscopist
Along with 7 years U.S. Naval Services and Diving Hyperbarics, Dr. Hall has been serving the community and patients of Northern Arizona since 2017.
Tina Fawcett, DNP, AGACNP-BC
Certifications: Nationally Certified Adult Gerontology Acute Care Nurse Practitioner (AGACNP-BC)
Education: Doctorate of Nursing Practice, University of Utah (2015)
Experience: Over 10 years in pulmonary and sleep medicine, 20+ years nursing career including ICU and emergency department
Originally from Salt Lake City, Tina is passionate about helping patients improve their quality of life. She relocated to Arizona in 2016 and enjoys outdoor activities including hiking, wildlife watching, biking, and kayaking.
Pulmonary Function Testing
Dominic Torres
Certifications: Nationally Certified Respiratory Therapist
Experience: Serving the community and Flagstaff since 1993, Joined NAPA in 2023
Specialties: Pulmonary Function Testing, Patient Education and support
A native of Arizona, Dominic started the Pulmonary Function Lab at NAPA in October of 2023. Bringing his multiple years of experience as a Respiratory Therapist with critically compromised patients, leadership character and educator talents. He will help you get through your diagnostic procedure with compassion while being lighthearted. "Everyone loves Dominic"
Support Staff
Jordyn
Certifications: Certified Nursing Assistant (CNA)
Experience: Serving Flagstaff patients as a CNA since 2022, joined NAPA in 2024
Specialties: Appointment scheduling, referral coordination, medical records, home health care coordination, sleep studies
A native of Flagstaff and Arizona, Jordyn is our friendly telephone receptionist and CNA. If you call or leave a message, most likely you will be speaking with Jordyn. She helps schedule and coordinate appointments while managing referrals and facilitating various patient care services.
Sheila
Certifications: Medical Assistant, Certified Nurse Assistant
Experience: Serving Flagstaff patients since 2007, joined NAPA in 2025
Specialties: Patient preparation, appointment scheduling, referral coordination, home health care, therapeutic biologics delivery, diagnostic coordination
A native of Arizona and Flagstaff, Sheila is our friendly front office receptionist and medical assistant who will greet you and prepare you for your appointment. She handles appointment scheduling, provider referrals, and coordinates various patient services including radiographic images and sleep studies.
Rob
Certifications: Certified Medical Assistant
Experience: Serving NAPA patients since 2018, Flagstaff resident since 2008
Specialties: Appointment coordination, referrals, prior authorizations, home health care, therapeutic biologics delivery, diagnostic coordination, bronchoscopy procedures
A native of Arizona and super friendly, understanding, and compassionate team member, Rob helps coordinate appointments, referrals, and needed approvals. He facilitates various patient services including radiographic images, sleep studies, and physician procedures such as invasive bronchoscopies.
Our Commitment
Excellence in Pulmonary Care
Our team of board-certified pulmonologists and respiratory specialists is committed to providing the highest quality care for patients with lung and breathing disorders. We stay current with the latest advances in pulmonary medicine to ensure our patients receive the most effective treatments available.
Comprehensive Approach
We believe in treating the whole person, not just the condition. Our team works collaboratively to develop personalized treatment plans that address each patient's unique needs and circumstances.
Continuing Education
Our physicians regularly participate in continuing medical education and stay involved in professional organizations to maintain their expertise and provide the most current care to our patients.
Professional Affiliations
Hospital Affiliations
Our physicians maintain privileges at leading hospitals in Northern Arizona, ensuring continuity of care for our patients.
Medical Organizations
Active members of the American Thoracic Society, American College of Chest Physicians, and other professional organizations.
Research & Innovation
Committed to advancing pulmonary medicine through research participation and clinical trials when appropriate.