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Dr. Gregory Warner, MD

Dr. Gregory Warner, MD

Pulmonary Disease*
40+ years of experience

Dr. Gregory Warner, MD is a pulmonologist in Visalia, CA and has over 40 years of experience in the medical field. Dr. Warner has extensive experience in Obstructive Lung Disease. He graduated from University of Nebraska Medical Center College of Medicine in 1980. He is affiliated with medical facilities Kaweah Health Medical Center and Saint Agnes Medical Center. He is accepting new patients.

2.1 Star Rating
Based on 11 reviews 2.1 Star Rating (11 reviews)

Practice

5400 W Hillsdale Ave Visalia, CA 93291

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Hospital Highlight

Dr. Warner is affiliated with Kaweah Health Medical Center Visalia, a highly rated and top awarded hospital for pulmonology.

At a Glance

  • Areas of Expertise
    Dr. Warner specializes in the areas of Critical Care Medicine, Internal Medicine, Pulmonary Disease & Sleep Medicine. See board certifications
  • Practices at Top Hospital
    Patient Safety Excellence Award™ See hospitals
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Dr. Warner's Reviews

Likelihood to recommend Dr. Warner

2.1
11 ratings, 6 with a written review
5 star
18%
18%
4 star
9%
9%
3 star
0%
0%
2 star
9%
9%
1 star
64%
64%

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Canceled my appointment after I waited 4 months to
Had a sleep study done that he read and interpreted. I live 2.5 hours away and he refused to do a telemedicine consult. I have a bunch of questions about the report that could easily be answered remotely. I waited from December 21st, 2024 to be able to see him on April 8th, 2025: over 3.5 months!! Two weeks before my April 8th appointment he canceled it. They wanted to reschedule me for OVER A MONTH LATER- so 4.5 MONTHS after my study was completed- when I would be on a long-ago-scheduled trip. THANKS FOR NOTHING!!! Will seek help elsewhere. I mean, who deosn't do telemedicine visits these days, especially for a sleep study consult?!!??
What went well
No results
What could be improved
  • Long wait times
2 others found this helpful
Helpful
Mar 28, 2025
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Good Doctor
Dr. Warner is easy to talk to and takes interest in his patients health. Some people do not care for his no nonsense approach, it was not a problem for me.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Geneva A Philpot – Jul 07, 2022
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Dr. Warner is an idiot he shouldn’t be working at NO hospital
What went well
No results
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Didn't trust the provider's decisions
  • Long wait times
1 other person found this helpful
Helpful
Darrell Kyle – Jun 09, 2021
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Very rude and unprofessional. Wanted us to keep my dad on a DNR and we didn’t want to. My dad was coding and Dr. Warner said he was on a DNR even though I had asked him to resuscitate if needed and minutes later he called to tell us he had passed. When asked if he attempted to resuscitate he seemed confused. Days later I called to get a letter for my family to be able to come for the funeral and he was very rude about it, told me he wasn’t on duty and that he wouldn’t help since he wasn’t on shift. He then hung up on me. Very rude and unprofessional.
What went well
No results
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Didn't trust the provider's decisions
1 other person found this helpful
Helpful
Jun 03, 2021
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My father was in the hospital for lung cancer. Originally we didn’t even know. Issues began to arise when the doctors performed a biopsy. That’s when they realized it was stage 4 cancer. They had already ran plenty of tests but no one knew about the cancer. Dr Warner eventually came to the icu and all he wanted me to do was to sign a dnr. It felt like he didn’t even care about the patient my father. Every chance he would get, he was trying to strongarm not only me but others in my family at the hospital. I actually told him to leave but he didn’t. The sad thing is I still have to deal with him. He can’t start chemo because his lungs can’t handle it because of the biopsy. He is just stuck in limbo in the icu. Because of this it feels like the they don’t want to be liable. The icu room was the biggest on the floor and it felt like they just wanted to get us out. I have never been so angry with a doctor until I met Greg Warner. He didn’t explain anything and only wanted one thing
What went well
No results
What could be improved
  • Office environment
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Staff wasn't friendly
  • Appointment was rushed
  • Didn't trust the provider's decisions
5 others found this helpful
Helpful
Oct 16, 2019
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I went to Dr. Warner in October 2015 with hoareness, and a history of COPD. His follow ups are few and far in between. I went back to him coughing up blood and it took him over 2 months from that point to diagnose me with Stage 3B non small cell lung cancer... Not resectable! Not a compassionate doctor at all. It wasn't an urgent matter to him and the way he told me was irrorgant at best. He was on vacation and his office wouldn't release the results of my biopsy to speed up the process.
What went well
No results
What could be improved
  • Office environment
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
  • Didn't trust the provider's decisions
15 others found this helpful
Helpful
Viola Walker in Springville, CA – Aug 14, 2016
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About Me

biography

Dr. Gregory Warner, MD is a pulmonologist in Visalia, CA and has over 40 years of experience in the medical field. Dr. Warner has extensive experience in Obstructive Lung Disease. He graduated from University of Nebraska Medical Center College...read more
  • Pulmonary Disease

  • Critical Care Medicine

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • University Of Wisconsin, Madison Wisconsin, Pulmonogy

    Fellowship Hospital
  • University Of Wisconsin School Of Medicine And Public Health

    Residency Hospital
  • University Of Wisconsin, Madison

    Internship Hospital
  • University Of Nebraska Medical Center College Of Medicine

    Medical School, 1980
  • University Of New England College Of Osteopathic Medicine

    Medical School, 1980
American Board of Medical Specialties®
American Board of Internal Medicine®
Critical Care Medicine
Internal Medicine
Pulmonary Disease
Sleep Medicine
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Locations

Practice

Visalia Medical Clinic Inc.5400 W Hillsdale Ave Visalia, CA 93291
1
Saint Agnes Pathology Medical Group1303 E Herndon Ave Fresno, CA 93720
2

Practice

Kaweah Health400 W Mineral King Ave Visalia, CA 93291
3

Affiliated Hospitals

  • Kaweah Health Medical Center

    400 W Mineral King Ave
    Visalia, CA 93291
    Recipient of 7
    hospital awards

    Patient Safety Excellence Award™ (2025)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    America's 100 Best Hospitals Award™ (2023)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    View all awards

    How patients felt about the care they received at this hospital.

    83%
    Patients said they were given information about recovering at home

    1% lower than the national average

    72%
    Patients said that nurses always listened to them and explained things well

    3% lower than the national average

    View all patient feedback
  • Saint Agnes Medical Center

    1303 E Herndon Ave
    Fresno, CA 93720
    Recipient of 8
    hospital awards

    Patient Safety Excellence Award™ (2023)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    View all awards

    How patients felt about the care they received at this hospital.

    80%
    Patients said they were given information about recovering at home

    4% lower than the national average

    68%
    Patients said that doctors always listened to them and explained things well

    8% lower than the national average

    View all patient feedback
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