0 reviews
Summary
Dr. Martens graduated from the Indiana University School of Medicine in 2012. He works in Saint Louis, MO and 1 other location and specializes in Transplant Surgery and Surgery. Dr. Martens is affiliated with Barnes Jewish Hospital.
Quick Facts
- accepting new patients
- 14 years of experience
- Indiana University Hospital
- 2 specialties
- 2 areas of expertise
- 1 hospital affiliation
- 3 office locations
- Male
Office Locations
Dr. Gregory Ryan Martens has 3 locationsMinimally Invasive Surgery
4921 PARKVIEW PL STE 12BSt. LOUIS, MO 63110Mon8:00 am - 4:00 pm
Tue8:00 am - 4:00 pm
Wed8:00 am - 4:00 pm
Thu8:00 am - 4:00 pm
Fri8:00 am - 4:00 pm
SatClosed
SunClosed
Compare with Similar Doctors
![]() | ![]() | ![]() | ![]() |
| Dr. Gregory Ryan Martens, MD | Dr. Bhooma Rajagopalan Aravamuthan | Kathe Ann Russo | Dr. Tiffany Medlin Osborn, MD |
| Transplant Surgery | Neurology | Nurse Practitioner | Emergency Medicine |
| Accepts New Patients | Accepts New Patients | ||
| 14 Years of Experience | 14 Years of Experience | 29 Years of Experience | |
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English, Spanish | Speaks English, Spanish | ||
| Saint Louis , MO | Saint Louis , MO | Bridgeton , MO | Saint Louis , MO |
| Med School: Indiana University School Of Medicine | Med School: Washington University In St Louis School Of Medicine | Med School: Univ Of Tx Hlth Sci Ctr At San Antonio Joe R & Teresa Lozano Long Schof Med | |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Gregory Ryan Martens
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Gregory Ryan Martens has the following 2 specialties
Specialty Expertise
Dr. Gregory Ryan Martens has the following 2 areas of expertise
Certifications, License, & Education
14 Years Experience
Dr. Gregory Ryan Martens holds an expired medical license in the state of Missouri.
Medical License
Medical Doctor with an expired medical license in the state of Missouri that expired in 2026.
Education & Training
Residency
Completed their residency at Indiana University Hospital.
Medical School
Graduated from Indiana University School Of Medicine in 2012.
NPI Number
Dr. Martens' NPI number is 1316201940.
Similar doctors
Frequently Asked Questions
- Is Dr. Gregory Martens accepting new patients?
- Dr. Gregory Martens is accepting new patients on Vitals. View Dr. Gregory Martens's profile on Vitals to make an appointment.
- Does Dr. Gregory Martens accept virtual/telehealth appointments?
- Dr. Gregory Martens has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Does Dr. Gregory Martens accept my insurance?
- You can see the insurance plans that Dr. Gregory Martens accepts on their Vitals profile.
- Which hospitals is Dr. Gregory Martens affiliated with?
- Dr. Gregory Martens is affiliated with Barnes Jewish Hospital.
- Where is Dr. Gregory Martens's office located?
- Dr. Gregory Martens's office is located at 1 Barnes Jewish Hospital Plz, Saint Louis, MO, 63110.
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.



