Summary

Dr. Gregory Mason specializes in pulmonology and internal medicine, bringing more than five decades of medical expertise to his practice. He earned his medical degree from Indiana University School of Medicine and completed his residency at LAC USC Medical Center. With 52 years of clinical experience, Dr. Mason has developed extensive knowledge in respiratory and internal medicine care. He is fluent in both English and Spanish.

Dr. Mason practices at Harbor UCLA Medical Center, Torrance Memorial Medical Center, and Providence Little Company of Mary Medical Center Torrance, all located in Torrance, California. His clinical focus includes treating obesity and sleep disorders, with particular expertise in obstructive sleep apnea management. He also provides specialized care for pediatric obesity, helping young patients and their families address weight-related health concerns. Patients have given Dr. Mason an average rating of 4.0 on Vitals, reflecting their confidence in his comprehensive approach to respiratory and internal medicine care.
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Overview based on verified provider data

Quick Facts

  • 4
  • 52 years of experience
  • speaks English, Spanish
  • Lac Usc Medical Center
  • 2 specialties
  • 8 areas of expertise
  • 2 board certifications
  • 3 hospital affiliations
  • 3 office locations
  • Male

Office Locations

Dr. Gregory R Mason has 3 locations

Harbor Ucla Medical Center

1000 W Carson StTorrance, CA 90502

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Dr. Gregory R Mason, MDDr. Asad Javed, MDDr. John Mina MorkosLynette Smeder Fox
PulmonologyPulmonologyDiagnostic RadiologyNurse Practitioner
Accepts New Patients
52 Years of Experience 16 Years of Experience 4 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English, Hindi, Urdu
Torrance , CAOrange , CALos Angeles , CALong Beach , CA
Med School: Indiana University School Of Medicine Med School: American University Of Antigua College Of Medicine Med School: Johns Hopkins University School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Gregory R Mason

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Gregory R Mason has the following 2 specialties

Specialty Expertise

Dr. Gregory R Mason has the following 8 areas of expertise

  • Angiographic Visualization
  • Asthma
  • Chest Infection
  • Chronic Obstructive Pulmonary Disease (COPD)
  • Emphysema
  • Internal Medicine
  • Pneumonia
  • Tuberculosis (TB)

Certifications, License, & Education

52 Years Experience

Dr. Gregory R Mason holds an expired medical license in the state of California.

Medical License

Medical Doctor with an expired medical license in the state of California that expired in 2025.

Education & Training

Residency

Completed their residency at Lac Usc Medical Center.

Medical School

Graduated from Indiana University School Of Medicine in 1974.

NPI Number

Dr. Mason's NPI number is 1841247145.

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Frequently Asked Questions

Which hospitals is Dr. Gregory Mason affiliated with?
Dr. Gregory Mason is affiliated with Harbor Ucla Medical Center, Torrance Memorial Medical Center, and Providence Little Company Of Mary Medical Center Torrance.
Does Dr. Gregory Mason accept my insurance?
You can see the insurance plans that Dr. Gregory Mason accepts on their Vitals profile.
How can I make an appointment with Dr. Gregory Mason?
You can find contact information for Dr. Gregory Mason here on Vitals.
Does Dr. Gregory Mason accept virtual/telehealth appointments?
Dr. Gregory Mason has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
What languages does Dr. Gregory Mason speak?
Dr. Gregory Mason speaks English and Spanish.

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