0 reviews
Summary
Dr. Grant Sizemore is a surgeon who earned his medical degree from the University of South Florida Health Morsani College of Medicine. With 11 years of experience in surgical practice, he brings extensive expertise to his patients' care.
Dr. Sizemore practices at Tripler Army Medical Center and Straub Benioff Medical Center in Honolulu, Hawaii. He treats patients with conditions including bowel obstruction, stomach cancer, and drug allergies. His surgical expertise includes procedures such as implanted access port placement and breast cyst removal, along with performing electrocardiograms to evaluate heart function.
Dr. Sizemore practices at Tripler Army Medical Center and Straub Benioff Medical Center in Honolulu, Hawaii. He treats patients with conditions including bowel obstruction, stomach cancer, and drug allergies. His surgical expertise includes procedures such as implanted access port placement and breast cyst removal, along with performing electrocardiograms to evaluate heart function.
Overview based on verified provider data
Quick Facts
- 11 years of experience
- University Of South Florida Health Morsani College Of Medicine
- 1 specialty
- 5 areas of expertise
- 2 hospital affiliations
- 2 office locations
- Male
Office Locations
Dr. Grant Christopher Sizemore has 2 locationsCompare with Similar Doctors
![]() | ![]() | ![]() | ![]() |
| Dr. Grant Christopher Sizemore, MD | Dr. Andrew Robert Medendorp, MD | Dr. Andrew L Findley JR., MD | Dr. Ryan Kiyoshi Takamori, MD |
| Surgery | Urology | Surgery | Surgical Oncology |
| 11 Years of Experience | 21 Years of Experience | 41 Years of Experience | 37 Years of Experience |
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Honolulu , HI | Tripler Amc , HI | Tripler Amc , HI | Honolulu , HI |
| Med School: University Of South Florida Health Morsani College Of Medicine | Med School: Northwestern University Feinberg School Of Medicine | Med School: University Of South Alabama College Of Medicine | Med School: University Of Hawaii At Manoa |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Grant Christopher Sizemore
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Grant Christopher Sizemore has the following specialty
Specialty Expertise
Dr. Grant Christopher Sizemore has the following 5 areas of expertise
Certifications, License, & Education
11 Years Experience
Dr. Grant Christopher Sizemore holds an expired medical license in the state of Hawaii.
Medical License
Medical Doctor with an expired medical license in the state of Hawaii that expired in 2026.
Education & Training
Medical School
Graduated from University Of South Florida Health Morsani College Of Medicine in 2015.
NPI Number
Dr. Sizemore's NPI number is 1942682281.
Similar doctors

Dr. Jennifer Marie Espiritu, MDPublic Health & General Preventive Medicine28 Years Exp | Tripler Amc, HI







Frequently Asked Questions
- Is Dr. Grant Sizemore accepting new patients?
- Dr. Grant Sizemore has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- How can I make an appointment with Dr. Grant Sizemore?
- You can find contact information for Dr. Grant Sizemore here on Vitals.
- Does Dr. Grant Sizemore accept virtual/telehealth appointments?
- Dr. Grant Sizemore has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Does Dr. Grant Sizemore accept my insurance?
- You can see the insurance plans that Dr. Grant Sizemore accepts on their Vitals profile.
- Where is Dr. Grant Sizemore's office located?
- Dr. Grant Sizemore's office is located at 888 S King St, Honolulu, HI, 96813.
Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews
Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.
Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.
Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.