Highlights
Age Groups Seen
- Adult 21-65
- Older Adult >65
Languages
- English
Gender
MaleAbout Gregory C Warner
About The Provider
Dr. Warner is a board-certified pulmonologist with over three decades of experience providing comprehensive care for pulmonary conditions.
Dedicated to his field, Dr. Warner has a clinical interest in treating interstitial lung disease and pulmonary hypertension. Additionally, he addresses other pulmonary concerns such as asthma, bronchitis, COPD, endobronchial conditions, lung cancer, and sleep conditions.
In his downtime, Dr. Warner enjoys staying active outdoors by hiking, biking, and motorcycling.
Provider Type
Physician
Expertise
Education
- Fellowship Program: University of Wisconsin - Madison
- Internship Program: University of Wisconsin - Madison
- Medical School: University of Nebraska
- Residency Program: University of Wisconsin - Madison
Board Certifications
- Sleep Medicine: American Board of Internal Medicine, 2009
- Internal Medicine: American Board of Internal Medicine, 1987
Insurance
- Adventist Health Employee Health Plan / Incentive Health
- Aetna
- Blue Cross
- Blue Shield
- Brand New Day
- Cigna
- Foundation for Medical Care- Hanford Counties
- Health Net
- Health Smart
- Key Medical
- Medi-cal ORP1
- Medicare
- MultiPlan
- Networks By Design
- Tricare
- Triwest1
- UHC
- Western Growers
Ratings & Reviews
4.8 out of 5
39 ratings, 5 reviewsOur providers are at the heart of delivering whole-person care. We encourage patients to share their experiences through a patient satisfaction survey they receive following visits. Provider star ratings are calculated using patient responses to provider-focused questions in this survey. Please see the provider’s star rating and patient reviews below. Thank you for giving Adventist Health the opportunity to support your best health.
- 3 out of 5 starsReviewed on 1/16/2026
Waited over a hour to be seen.
- 5 out of 5 starsReviewed on 12/8/2025
I really like Dr Warner he really listens
- 5 out of 5 starsReviewed on 10/2/2025
Always a pleasure meeting with Dr. Warner
- 5 out of 5 starsReviewed on 8/21/2025
Dr Warner is a very caring Doctor
- 5 out of 5 starsReviewed on 5/13/2025
Dr. Warner is always concerned about her COPD and asthma medications being administered as prescribed. Not all medications are dosed as prescribed at her care home.