0 reviews
Summary
Dr. Garrett Diltz is an internal medicine physician who specializes in oncology, focusing his practice on cancer care and treatment. He earned his medical degree from Ohio State University College of Medicine & Public Health and brings seven years of clinical experience to his patient care. His dual expertise in internal medicine and oncology allows him to provide comprehensive care for patients with complex medical conditions, particularly those facing cancer diagnoses.
Dr. Diltz practices at several respected medical centers, including Beth Israel Deaconess Medical Center, MedStar Georgetown University Hospital, and Holy Cross Germantown Hospital, with locations in Washington, DC, Boston, MA, and Germantown, MD. He treats patients with conditions such as iron deficiency anemia, colorectal cancer, and gastrointestinal cancers. His clinical work includes performing complete blood counts and general blood tests to help diagnose and monitor patient health.
Dr. Diltz practices at several respected medical centers, including Beth Israel Deaconess Medical Center, MedStar Georgetown University Hospital, and Holy Cross Germantown Hospital, with locations in Washington, DC, Boston, MA, and Germantown, MD. He treats patients with conditions such as iron deficiency anemia, colorectal cancer, and gastrointestinal cancers. His clinical work includes performing complete blood counts and general blood tests to help diagnose and monitor patient health.
Overview based on verified provider data
Quick Facts
- accepting new patients
- 7 years of experience
- 5 insurance plans accepted
- Ohio State University College Of Medicine & Public Health
- 2 specialties
- 3 areas of expertise
- 4 hospital affiliations
- 5 office locations
- Male
Office Locations
Dr. Garrett Patrick Diltz has 5 locationsLombardi Comprehensive Cancer Center
3800 Reservoir Rd NwWashington, DC 20007Mon8:30 am - 5:00 pm
Tue8:30 am - 5:00 pm
Wed8:30 am - 5:00 pm
Thu8:30 am - 5:00 pm
Fri8:30 am - 5:00 pm
SatClosed
SunClosed
American Oncology Partners
19735 Germantown Rd Ste 255Germantown, MD 20874Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed
Compare with Similar Doctors
![]() | ![]() | ![]() | ![]() |
| Dr. Garrett Patrick Diltz | Dr. Mamatha Chella, MD | Dr. Carol Jagdeo, MD | Karen Lizarraga, PA-C |
| Internal Medicine | Internal Medicine | Internal Medicine | Internal Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | Accepts New Patients |
| 7 Years of Experience | 45 Years of Experience | ||
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English | Speaks English | Speaks English, Spanish | |
| Washington , DC | Bowie , MD | Washington , DC | Gaithersburg , MD |
| Med School: Ohio State University College Of Medicine & Public Health | Med School: Government Medical college | Med School: Perelman School Of Medicine At University Of Pennsylvania | Med School: Shenandoah University |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Garrett Patrick Diltz
Medical Specialties
Dr. Garrett Patrick Diltz has the following 2 specialties
Specialty Expertise
Dr. Garrett Patrick Diltz has the following 3 areas of expertise
Certifications, License, & Education
7 Years Experience
Dr. Garrett Patrick Diltz holds active and expired medical licenses in the states of Maryland and District Of Columbia.
Medical License
Medical Doctor with an active medical license in the state of Maryland that expires in 2026 and an expired medical license in the state of District Of Columbia that expired in 2026.
Education & Training
Medical School
Graduated from Ohio State University College Of Medicine & Public Health in 2019.
NPI Number
Dr. Diltz's NPI number is 1578120176.
Similar Doctors
Frequently Asked Questions
- Where is Dr. Garrett Diltz's office located?
- Dr. Garrett Diltz's office is located at 3800 Reservoir Rd Nw, Washington, DC, 20007.
- Is Dr. Garrett Diltz accepting new patients?
- Dr. Garrett Diltz is accepting new patients on Vitals. View Dr. Garrett Diltz's profile on Vitals to make an appointment.
- Does Dr. Garrett Diltz accept virtual/telehealth appointments?
- Dr. Garrett Diltz has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- How can I make an appointment with Dr. Garrett Diltz?
- You can find contact information for Dr. Garrett Diltz here on Vitals.
- Does Dr. Garrett Diltz accept my insurance?
- You can see the insurance plans that Dr. Garrett Diltz accepts on their Vitals profile.
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.




