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Pulmonology in Las Vegas, NV - ProviderMatch logo

Pulmonology in Las Vegas, NV - ProviderMatch

PulmonologyLas Vegas, NV

★★★★☆4.2/5226 reviews across 6 platforms

Ratings by platform

  • Healthgrades (Dr. John Collier): 4.7/5 stars (68 reviews)
  • Healthgrades (Dr. Karishma Bhatia Mehta): 4.9/5 stars (26 reviews)
  • Healthgrades (Dr. James Hsu): 4.6/5 stars (47 reviews)
  • Vitals (Dr. Walter J. Willoughby): 3.1/5 stars (26 ratings)
  • WebMD (Dr. Naresh Singh): 4.5/5 stars (15 ratings)
  • U.S. News & World Report (Dr. Anees Arshad): 3/5 stars (44 reviews)

What patients say

Patients praise

  • Knowledgeable and professional care
  • Effective treatment for conditions like sleep apnea and COPD
  • Compassionate and caring bedside manner
  • Clear communication of medical options and explanations
  • Long-term patient loyalty

Common complaints

  • Long wait times
  • Small, difficult-to-access offices
  • Concerns regarding diagnosis communication and professional manner
  • Frustration with office staff responsiveness

In patients' words

"Dr. Collier is been my pulmonologist for 20 years. I would highly recommend him. Not only is he a great doctor but a wonderful human being who truly cares for his patients."

Healthgrades

"Dr. Hsu has been my doctor for over 20 years. He is wonderful! He is very caring, compassionate and explains everything very well."

Healthgrades

"Not Well. He brought a classroom of people without my permission to give bad diagnosis. He never put in my paperwork for biopsy and then just left the clinic."

WebMD

"DO NOT EVER SEE THIS DOCTOR IF YOU WANT TO LIVE!"

Vitals

How these reviews were compiled

Synthesized from public patient-review platforms as of Jul 11, 2026 — sources: [1][2][3][4][5][6][7].

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