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Summary
Dr. John Walker treats colon polyps, diverticular disease, and diverticulosis, and performs colonoscopy, lower GI endoscopy, and upper GI endoscopy. He practices gastroenterology and internal medicine in Biddeford, Maine, with 13 years of experience. Dr. Walker earned his degree from the University of New England College of Osteopathic Medicine and completed his residency at Maine Medical Center.
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 office locations
- Male
Office Locations
Dr. John T Walker has 2 locationsCompare with Similar Doctors
 |  |  | |
| Dr. John T Walker, DO | Theresa Obonyano, APRN | Hilary Mae Boutte | Dr. Russell William Davis III |
| Gastroenterology | Gastroenterology | Nurse Practitioner | Nephrology |
| Accepts New Patients | |||
| 13 Years of Experience | 8 Years of Experience | ||
| No Virtual Visit Option | Virtual Visit Available | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English | |||
| Biddeford , ME | Sacramento , CA | PORTLAND , 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: Liberty University College Of Osteopathic Medicine | |
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
- 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.
- Does Dr. John Walker accept my insurance?
- You can see the insurance plans that Dr. John Walker accepts on their Vitals profile.
- 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.
- Where is Dr. John Walker's office located?
- Dr. John Walker's office is located at 9 Healthcare Dr Ste 202, Biddeford, ME, 04005.
- How can I make an appointment with Dr. John Walker?
- You can find contact information for Dr. John Walker here on Vitals.
Data Sources
This provider profile is built using data from:
- NPPES NPI Registry
- State medical licensing boards
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