Dr. Thomas Hsia, MD

Dr. Thomas Hsia, MD

Gastroenterology  ·  
Male  ·  
58 y/o

Accepting new patients

Dr. Thomas Hsia, MD is a gastroenterology specialist in Santa Maria, CA and has been practicing for 24 years. He specializes in gastroenterology and internal medicine.

Santa Maria Gastroenterology Group

361 Town Ctr W Ste 101

Santa Maria, CA 93458
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Insurance Accepted

  • Aetna
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of California
  • Cigna
  • First Health (Coventry Health Care)

Learn about Dr. Hsia

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. Hsia performs your care needs compared to other doctors.

Gas-Bloat Syndrome
very high
more than 99% of peers
Abdominal Pain
very high
more than 99% of peers
Noninfectious Gastroenteritis and Colitis
very high
more than 99% of peers

Dr. Hsia'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.

Care Philosophy

This content was provided by Dr. Hsia "We understand that visiting the gastroenterologist may be a new experience for you and that you may be in pain or worried about your health. That?s why all the staff at the Santa Maria Digestive Diagnostic Center and Santa Maria Gastroenterology focus on making you feel comfortable and confident in our care. Our physicians and our medical team take extra care to listen to your concerns, answer all your questions and thoroughly explain your condition and treatment options."

2  Specialties

  • Gastroenterology
  • Internal Medicine

1  Board Certifications

  • Gastroenterology
    Accredited by: American Board of Internal Medicine*

77  Conditions Treated

Read Less

15  Procedures

Background Check

0 Malpractice Claims

No malpractice history found for California.

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.


  • University of California
    Undergraduate School | Graduated 1982
  • University Of California, San Francisco, School Of Medicine
    Medical School | Graduated 1986
  • University Of California Davis
    Internship Hospital | Completed 1987
  • University Of California Davis
    Residency Hospital | Completed 1990
  • University Of California Davis
    Fellowship Hospital | Completed 1994

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Hsia has no media or publications listed.

Languages Spoken

  • English
  • Spanish

Memberships & Professional Affiliations

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

Dr. Hsia's Reviews

Likelihood to recommend Dr. Hsia


Based on 17 reviews

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Average Wait Time
  • 31 – 45 minutes
Dr. Hsia's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
What People Say About Dr. Thomas Hsia, MD
Avoid this doctor! He did not give me my diagnosis at a follow up appointment for an endoscopy. He said he couldn't find anything wrong and was sorry. A week later I found out I had a stomach infection. I went to my pharmacy to pick up a different prescription for someone else and found out I had...Read More
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Jun 26, 2018
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My experience with Dr. Hsia was beyond excellence. He saved my life when i was at Marian Hospital after Gallbladder surgery. He was called in because the bile duck had ruptured and he went in through the mouth to insert a stint and saved my life. I can't say enough. He is so dedicated to his...Read More
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Angelina E. Franco in Santa Maria,Ca. – Nov 15, 2017
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Have been to his office for about 3 appointments and always have a long wait to see the doctor. My most recent appointment I waiting 1 1/2 hours past my appointment time before they called me back to the room and then another 30 minutes in the room waiting for the doctor. Dr Hsai is very kind but...Read More
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TJ in Santa Maria, CA – Nov 23, 2016
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Very courteous and knowledgeable to my situation and concerns. Took me in as an emergency patient and saved my life. Answers all questions and explains in a manner that is understandable to me. Will and have recommended his services to my friends and family.
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Lompoc, CA – Dec 20, 2015
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