Dr. Thomas O'Brien, MD

Dr. Thomas O'Brien, MD

Pulmonary Disease  ·  
Male  ·  
Age 64
Dr. Thomas O'Brien, MD is a pulmonologist in Kissimmee, FL and has been practicing for 31 years. He graduated from McP Hahnemann University in 1977 and specializes in pulmonary disease and sleep medicine.

1121 N Central Ave

Kissimmee, FL 34741

Contact Information

(407) 933-1221

Insurance Accepted

  • Aetna
  • Ambetter
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Florida
  • Cigna
  • First Health (Coventry Health Care)
  • Humana
  • MultiPlan

*Please verify this information when scheduling an appointment.

Learn about Dr. O'Brien

Be confident in your decisions by checking out your provider's top areas of care, education, patient reviews and more. Learn about finding the right doctor for you.

Top Care Areas

See how frequently Dr. O'Brien performs your care needs compared to other doctors.

Low Blood Oxygen Level
very high
more than 99% of peers
Shortness of Breath
very high
more than 99% of peers
very high
more than 99% of peers

Dr. O'Brien's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

2  Specialties

  • Pulmonary Disease
  • Sleep Medicine

1  Board Certifications

  • Internal Medicine
    Accredited by: American Board of Internal Medicine*

55  Conditions Treated


Read Less

6  Procedures

Background Check

0 Malpractice Claims

No malpractice history found for Florida.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • McP Hahnemann University
    Medical School | Graduated 1977
  • Portsmouth Naval Hosp
    Internship Hospital | Completed 1982
  • Portsmouth Naval Hosp
    Residency Hospital | Completed 1985
  • Portsmouth Naval Hosp
    Fellowship Hospital | Completed 1987

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. O'Brien has no media or publications listed.

Languages Spoken

  • English
  • Italian
  • Portuguese
  • Spanish

Memberships & Professional Affiliations

Dr. O'Brien does not have any memberships or affiliations listed. If you are Dr. O'Brien and would like to add memberships or affiliations, please update your profile.

Dr. O'Brien's Reviews

Likelihood of recommending Dr. O'Brien to family and friends
11 total reviews (3 have comments)

Likelihood to Recommend (11)

  • 5
  • 4
  • 3
  • 2
  • 1

Dr. O'Brien's Performance

  • Trustworthiness

  • Explains condition(s) well

  • Answers questions

  • Time well spent


Office & Staff Performance

  • Scheduling

  • Office environment

  • Staff friendliness

  • Average wait time

    10 to 15 minutes

Patient Comments (3)

Dr.Obrien came highly recommended for my Sister who was Found to have a huge mass in her left lobe. a very frightening diagnosis. dr. O'Brien ordered A Pet Scan and scheduled Her for biopsy of the mass. He was very professional yet compassionate and attentive.He has practiced for over 40 years...more
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AVOID! AVOID! When you have a cold and need to see a Dr. at the last minute, that is the ONLY time a nurse practitioner is needed. The Pulmonary Disease Specialists PA had me see a nurse practitioner, not a real doctor. A specialist is NOT a nurse practitioner, otherwise they would be a...more
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Dr. O'Brien and his whole staff have always demonstrated what I consider to be the absolute best service of any physician's I have ever been to--anywhere/any time !
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