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Summary
Dr. John Walker specializes in gastroenterology and internal medicine, focusing on digestive system disorders and comprehensive adult care. He earned his medical degree from the University of New England College of Osteopathic Medicine and completed his residency training at Maine Medical Center. With 13 years of clinical experience, Dr. Walker brings extensive knowledge to his practice treating complex gastrointestinal conditions.
Dr. Walker practices in Biddeford, Maine, where he provides care through multiple locations including Healthcare Drive and the SMHC Medical Center. His expertise includes treating colon polyps, GERD, and acid reflux, helping patients manage these common digestive concerns. He performs various diagnostic procedures such as pathology tests and surgical pathology, and has experience with specialized procedures including kidney transplant biopsies to support comprehensive patient care.
Dr. Walker practices in Biddeford, Maine, where he provides care through multiple locations including Healthcare Drive and the SMHC Medical Center. His expertise includes treating colon polyps, GERD, and acid reflux, helping patients manage these common digestive concerns. He performs various diagnostic procedures such as pathology tests and surgical pathology, and has experience with specialized procedures including kidney transplant biopsies to support comprehensive patient care.
Overview based on verified provider data
Quick Facts
- 13 years of experience
- 34 insurance plans accepted
- Maine Medical Center
- 2 specialties
- 8 areas of expertise
- 2 board certifications
- 2 office locations
- Male
Office Locations
Dr. John T Walker has 2 locationsCompare with Similar Doctors
 |  |  | |
| Dr. John T Walker, DO | Theresa Obonyano, APRN | Dr. Lisa Beth Gehrie | Dr. Peter Whitcomb Rand |
| Gastroenterology | Gastroenterology | Internal Medicine | Cardiovascular Disease |
| Accepts New Patients | |||
| 13 Years of Experience | 49 Years of Experience | 71 Years of Experience | |
| No Virtual Visit Option | Virtual Visit Available | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English | |||
| Biddeford , ME | SACRAMENTO , CA | Biddeford , ME | Portland , ME |
| Med School: University Of New England College Of Osteopathic Medicine | Med School: The University of Texas Health Science Center at Houston | Med School: Albert Einstein College Of Medicine Of Yeshiva University | Med School: Harvard Medical School |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. John T Walker
Medical Specialties
Dr. John T Walker has the following 2 specialties
Specialty Expertise
Dr. John T Walker has the following 8 areas of expertise
Certifications, License, & Education
13 Years Experience
Dr. John T Walker holds an expired medical license in the state of Maine.
Medical License
Doctor Of Osteopathy with an expired medical license in the state of Maine that expired in 2025.
Education & Training
Residency
Completed their residency at Maine Medical Center.
Medical School
Graduated from University Of New England College Of Osteopathic Medicine in 2013.
NPI Number
Dr. Walker's NPI number is 1851737811.
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Frequently Asked Questions
- Does Dr. John Walker accept my insurance?
- You can see the insurance plans that Dr. John Walker accepts on their Vitals profile.
- Is Dr. John Walker accepting new patients?
- Dr. John Walker 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. John Walker?
- You can find contact information for Dr. John Walker here on Vitals.
- Where is Dr. John Walker's office located?
- Dr. John Walker's office is located at 9 Healthcare Dr Ste 202, Biddeford, ME, 04005.
- Does Dr. John Walker accept virtual/telehealth appointments?
- Dr. John Walker has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
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