Summary

Dr. John Walker has practiced gastroenterology for 53 years and is affiliated with Mercy Medical Center, Saint Charles Bend, and Providence Medford Medical Center. He treats colon polyps, diarrhea, and acid reflux, and performs pathology tests, kidney transplant biopsy, and nerve biopsy.

Dr. Walker is board-certified in internal medicine by the American Board of Internal Medicine. He earned his medical degree from the University of Texas Southwestern Medical School and completed residency training at Jackson Memorial Hospital/Jackson Health and the Medical College of Wisconsin Affiliated Hospitals Program. He sees patients in Roseburg, Oregon.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 2.3
  • 53 years of experience
  • speaks English
  • Jackson Mem Hosp/Jackson Hlth, Internal Medicine
  • 2 written reviews
  • 1 specialty
  • 10 areas of expertise
  • 1 board certification
  • 3 hospital affiliations
  • 1 office location
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis

Office Location

Centennial Gastroenterology Associates

2510 NW Edenbower Blvd Suite 112Roseburg, OR 97471
Mon8:00 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

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John Walker, MD
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John Walker, MDSurinder Vasdev, MDSorin Petre, MDShaun Mcgowan, PA
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients
2.3 
5 
5 
0 
53 Years of Experience 42 Years of Experience 36 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 Speaks English
Roseburg , ORRoseburg , ORRoseburg , ORRoseburg , OR
Med School: University of Texas Southwestern Medical School, Dallas Med School: University of London, The Middlesex Hosp Med Sch Med School: Carol Davila University of Medicine & Pharmacy Med School: Duquesne University
Current Profile
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Insurance Plans Accepted by John Walker

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

John Walker has the following specialty

Specialty Expertise

John Walker has the following 10 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Celiac Disease
  • Colonoscopy
  • Constipation
  • Hemorrhoids
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Certifications, License, & Education

53 Years Experience

John Walker holds an expired medical license in the state of Oregon. They are board certified in Internal medicine by the American Board of Internal Medicine.

Board Certifications

Board certified in Internal medicine by the American Board of Internal Medicine.

Medical License

Medical Doctor with an expired medical license in the state of Oregon that expired in 2025.

Education & Training

Residency

Completed their residency at Jackson Mem Hosp/Jackson Hlth, Internal Medicine, Medical College of Wisconsin Affiliated Hospitals Program, and Miami Affil Hosps in 1974.

Medical School

Graduated from University of Texas Southwestern Medical School, Dallas in 1973.

NPI Number

John Walker's NPI number is 1346210994.

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Frequently Asked Questions

What languages does John Walker speak?
John Walker speaks English.
Does John Walker accept virtual/telehealth appointments?
John Walker has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Does John Walker accept my insurance?
You can see the insurance plans that John Walker accepts on their Vitals profile.
Where is John Walker's office located?
John Walker's office is located at 2510 NW Edenbower Blvd Suite 112, Roseburg, OR, 97471.
Is John Walker accepting new patients?
John Walker is accepting new patients on Vitals. View John Walker's profile on Vitals to make an appointment.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards
  • Board certification bodies (such as ABMS)
  • Healthcare system and provider network data

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