Dr. John A. Walker
- Gender: Male
- Experience: 48 years
- Graduation year: 1973
- Sole propriator: No
- NPI: 1346210994
Dr. John A. Walker MD
Gastroenterologist
He is located at 1342 Northeast Medical Center Drive Suite 100 in Bend, OR 97701. Can help patients with the following: Celiac Disease, Chest Pain, Crohn's Disease, Gastric Bypass Surgery, Headache, Pancreas Divisum. His National Provider Identifier (NPI) number is 1346210994. Appointment can be made via the phone number (541) 388-2333. He is affiliated with 2 practices and 5 hospitals.
Conditions treated
Dr. John A. Walker, being an gastroenterologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. John A. Walker.
- Abdominal Pain
- Acute Pain
- Anemia
- Arthritis
- Ascites
- Asthma
- Atherosclerosis
- Autoimmune Hepatitis
- Bad Breath
- Barrett's Esophagus
- Bladder Control
- Bleeding Varices
- Blood in Stool
- Botulism
- Cancer
- Carcinoid Tumor
- Celiac Disease
- Chest Pain
- Childhood Obesity
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Cirrhosis
- Clostridium Difficile Colitis
- Colitis
- Colonoscopy
- Common Cold
- Constipation
- Crohn's Disease
- Cystitis
- Diarrhea
- Diverticulosis
- Edema
- Eosinophilic Esophagitis
- Esophagitis
- Fatty Liver Disease
- Feeding and Swallowing
- Fever
- Food Allergies
- Gallbladder Pain
- Gastric Bypass Surgery
- Gastritis
- Gastroesophageal Reflux Disease (GERD)
- Gastroparesis
- General Care
- Headache
- Heart Disease
- Heartburn
- Helicobacter Pylori Infection
- Hemorrhoids
- Hepatitis A (HAV)
- Hepatitis B (HBV)
- Hepatitis C (HCV)
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Indigestion
- Inflammatory Bowel Disease (IBD)
- Influenza
- Inguinal Hernia
- Internal Bleeding
- Intussusception
- Irritable Bowel Syndrome (IBS)
- Lactose Intolerance
- Leaky Gut Syndrome
- Liver Disease
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Pancreas Divisum
- Pancreatic Cancer
- Pancreatic Cysts
- Pancreatitis
- Peptic Ulcer
- Portal Hypertension
- Prescription Refill
- Primary Biliary Cirrhosis (PBC)
- Primary Sclerosing Cholangitis (PSC)
- Stomach Cancer
- Swallowing Disorders
- Ulcerative Colitis
- Urethritis
- Urinary Tract Infection (UTI)
Procedures Performed by Dr. John A. Walker
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. John A. Walker as in-network for the following 2026 plans.
Health plans
Moda Health Plan, Inc.
Network data as of Sep 12, 2026, as reported by the insurer.
Show all 13 plans from Moda Health Plan, Inc.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Moda Health Affinity Bronze 8000 | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Moda Health Affinity Bronze 9000 | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Moda Health Affinity Bronze HDHP 7500 | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Moda Health Affinity Gold 1000 | EPO · Gold | Preferred | Accepting new patients |
| Moda Health Affinity Gold 1500 | EPO · Gold | Preferred | Accepting new patients |
| Moda Health Affinity Gold 250 | EPO · Gold | Preferred | Accepting new patients |
| Moda Health Affinity Silver 3000 | EPO · Silver | Preferred | Accepting new patients |
| Moda Health Affinity Silver 3400 | EPO · Silver | Preferred | Accepting new patients |
| Moda Health Affinity Silver 4500 | EPO · Silver | Preferred | Accepting new patients |
| Moda Health Affinity Silver 6000 | EPO · Silver | Preferred | Accepting new patients |
| Moda Health Oregon Standard Bronze Affinity | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Moda Health Oregon Standard Gold Affinity | EPO · Gold | Preferred | Accepting new patients |
| Moda Health Oregon Standard Silver Affinity | EPO · Silver | Preferred | Accepting new patients |
PacificSource Health Plans
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 9 plans from PacificSource Health Plans
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Core Bronze HSA 7500 | EPO · Expanded Bronze | Tier Two | Accepting new patients |
| Core Bronze HSA 8300 | EPO · Expanded Bronze | Tier One | Accepting new patients |
| Core Gold 1500 | EPO · Gold | Tier Two | Accepting new patients |
| Core Gold 3000 | EPO · Gold | Tier Two | Accepting new patients |
| Core Silver 4500 | EPO · Silver | Tier Two | Accepting new patients |
| Core Silver 7500 | EPO · Silver | Tier Two | Accepting new patients |
| PacificSource Oregon Standard Bronze HSA Plan Core | EPO · Expanded Bronze | Tier Two | Accepting new patients |
| PacificSource Oregon Standard Gold Plan Core | EPO · Gold | Tier Two | Accepting new patients |
| PacificSource Oregon Standard Silver Plan Core | EPO · Silver | Tier Two | Accepting new patients |
Providence Health Plan
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 8 plans from Providence Health Plan
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| HSA Qualified 7500 Bronze - Choice Network | EPO · Expanded Bronze | Choice | Not accepting new patients |
| HSA-E Qualified 7500 Bronze - Signature Network | EPO · Expanded Bronze | EPO | Not accepting new patients |
| Providence Oregon Standard Bronze Plan - Choice Network | EPO · Expanded Bronze | Choice | Not accepting new patients |
| Providence Oregon Standard Bronze Plan - Signature Network | EPO · Expanded Bronze | EPO | Not accepting new patients |
| Providence Oregon Standard Gold Plan - Choice Network | EPO · Gold | Choice | Not accepting new patients |
| Providence Oregon Standard Gold Plan - Signature Network | EPO · Gold | EPO | Not accepting new patients |
| Providence Oregon Standard Silver Plan - Choice Network | EPO · Silver | Choice | Not accepting new patients |
| Providence Oregon Standard Silver Plan - Signature Network | EPO · Silver | EPO | Not accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. John A. Walker is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. John A. Walker is enrolled to bill Medicare as a Practitioner - Gastroenterology .
Bills through: Centennial Medical Group Inc
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| AbbVie | $1184 |
| Janssen | $398 |
| Valeant Pharmaceuticals North America | $251 |
Other
| Food and Beverage | $3623 |
Studies
Graduated in 1973Additional Specialities
- Internist
Affiliated hospitals
Looking for more Gastroenterologists?
Out of the 10 gastroenterologists in this region, here are 10 randomly selected ones for you to explore.
- Gender: Male
- Address: 2084 Northeast Professional Court Bend, 97701, OR
- Gender: Male
- Address: 1501 Northeast Medical Center Drive Bend, 97701, OR
- Gender: Female
- Address: 1501 Northeast Medical Center Drive Bend, 97701, OR
- Gender: Female
- Address: 3111 Woburn Street Suite 201 Bellingham, 98226, WA
- Gender: Male
- Address: 1501 Northeast Medical Center Drive Bend, 97701, OR
- Gender: Male
- Address: 1501 Northeast Medical Center Drive Bend, 97701, OR
- Gender: Male
- Address: Suite 210 2450 Northeast Mary Rose Place Bend, 97701, OR
- Gender: Female
- Address: Suite 100 1303 Northeast Cushing Drive Bend, 97701, OR
- Gender: Female
- Address: 1501 Northeast Medical Center Drive Bend, 97701, OR
- Gender: Female
- Address: 13808 Professional Center Drive Huntersville, 28078, NC
Questions & Answers
Has Dr. John A. Walker affiliation with hospitals?
Dr. John A. Walker is affiliated with ASANTE ROGUE REGIONAL MEDICAL CENTER. For the full list of hospitals see this list.
Does Dr. John A. Walker accept patients with Moda Health Plan, Inc.?
Yes, Dr. John A. Walker is listed in-network for Moda Health Plan, Inc. through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
What conditions does Dr. John A. Walker treat?
Dr. John A. Walker provides treatment for Celiac Disease, Chest Pain, Crohn's Disease, Gastric Bypass Surgery, Headache, Pancreas Divisum. For the full list see this list.
Does Dr. John A. Walker have affiliation with practices?
Dr. John A. Walker is affiliated with Providence Health & Services - Oregon. For the full list of practices see this list.
Where can you meet with Dr. John A. Walker?
Dr. John A. Walker's office is located at 1342 Northeast Medical Center Drive Suite 100 in Bend, OR 97701.