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Summary
Dr. Dennis Gastineau specializes in oncology and hematology, bringing 48 years of experience to the diagnosis and treatment of cancer and blood disorders. He earned his medical degree from Mayo Clinic Alix School of Medicine, where he received comprehensive training in these complex medical fields. Dr. Gastineau provides care in English for patients facing various forms of cancer and blood-related conditions.
Dr. Gastineau practices at Mayo Clinic Hospital and Honorhealth Scottsdale Shea Medical Center, with locations in Phoenix, Arizona and Rochester, Minnesota. His nearly five decades of practice have established him as an experienced specialist in treating patients with serious hematologic and oncologic conditions. He focuses on delivering comprehensive cancer care and managing complex blood disorders through his work at these respected medical institutions.
Dr. Gastineau practices at Mayo Clinic Hospital and Honorhealth Scottsdale Shea Medical Center, with locations in Phoenix, Arizona and Rochester, Minnesota. His nearly five decades of practice have established him as an experienced specialist in treating patients with serious hematologic and oncologic conditions. He focuses on delivering comprehensive cancer care and managing complex blood disorders through his work at these respected medical institutions.
Overview based on verified provider data
Quick Facts
- 48 years of experience
- speaks English
- Mayo Clinic Alix School Of Medicine
- 2 specialties
- 13 areas of expertise
- 2 board certifications
- 2 hospital affiliations
- 2 office locations
- Male
Office Locations
Dr. Dennis Arthur Gastineau has 2 locationsCompare with Similar Doctors
 |  |  |  |
| Dr. Dennis Arthur Gastineau | Dr. Joel Lee Granick, MD | Cheryl A Wolfe-Ruiz | Dr. Xianfeng Frank Zhao, MD |
| Oncology | Oncology | Oncology | Hematology |
| Accepts New Patients | |||
| 48 Years of Experience | 54 Years of Experience | 41 Years of Experience | |
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English | Speaks English | Speaks Spanish, English | Speaks English |
| Phoenix , AZ | Goodyear , AZ | Glendale , AZ | Phoenix , AZ |
| Med School: Mayo Clinic Alix School Of Medicine | Med School: Suny Downstate Medical Center College Of Medicine | Med School: Shandong Medical University | |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Dennis Arthur Gastineau
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Dennis Arthur Gastineau has the following 2 specialties
Specialty Expertise
Dr. Dennis Arthur Gastineau has the following 13 areas of expertise
Certifications, License, & Education
48 Years Experience
Dr. Dennis Arthur Gastineau holds an active medical license in the state of Arizona.
Medical License
Medical Doctor with an active medical license in the state of Arizona that expired in 2026.
Education & Training
Medical School
Graduated from Mayo Clinic Alix School Of Medicine in 1978.
NPI Number
Dr. Gastineau's NPI number is 1487633988.
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Frequently Asked Questions
- Is Dr. Dennis Gastineau accepting new patients?
- Dr. Dennis Gastineau has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- Does Dr. Dennis Gastineau accept my insurance?
- You can see the insurance plans that Dr. Dennis Gastineau accepts on their Vitals profile.
- Which hospitals is Dr. Dennis Gastineau affiliated with?
- Dr. Dennis Gastineau is affiliated with Mayo Clinic Hospital and Honorhealth Scottsdale Shea Medical Center.
- How can I make an appointment with Dr. Dennis Gastineau?
- You can find contact information for Dr. Dennis Gastineau here on Vitals.
- What languages does Dr. Dennis Gastineau speak?
- Dr. Dennis Gastineau speaks English.
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