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Dr. John Walker, DO
Internal Medicine* Age 40
Dr. John Walker, DO
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Dr. John Walker, DO is an Internist in Biddeford, ME.
Dr. John Walker, DO
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Dr. John Walker, DO

Internal Medicine* Age 40
Biddeford, ME
Accepting new patients
Dr. John Walker, DO is an Internist in Biddeford, ME.
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About Dr. John Walker, DO

Dr. John Walker, DO is an Internist in Biddeford, ME. Dr. Walker has experience treating conditions like Anal or Rectal Pain among other conditions at varying frequencies. Dr. Walker's office accepts new patients. Dr. Walker is board certified in Gastroenterology and accepts multiple insurance plans.

Experience Check

Enter a condition or procedure
Anal or Rectal Pain
Constipation
Tobacco Use Disorder
Anal or Rectal Pain
Constipation
Tobacco Use Disorder
Arterial Blood Gas Test (ABG)
Electrocardiogram (EKG)
Nausea
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Gastroptosis
Mild Asthma
Immunization Administration
Abdominal Pain
ADHD and-or ADD
Administrative Physical
Adult Failure to Thrive
All Headaches (incl. Migraine)
Anemia
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Anxiety
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Arthritis
Arthritis of the Elbow
Asphyxia and Hypoxemia
Asthma
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Atherosclerosis
Bronchiectasis
Cachexia
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Celiac Disease
Chest Pain
Chronic Depression (Dysthymia)
Chronic Pain
COPD (Chronic Obstructive Pulmonary Disease)
Cough
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Dehydration
Diabetes Type 1
Diabetes Type 2
Diabetes With Renal Manifestations
Diarrhea
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Dyslipidemia
Dysphagia
Enteritis
Esophagitis
Fever
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Foot Infection
Gas-Bloat Syndrome
Gastritis
Gastroesophageal Reflux Disease (GERD)
Heart Disease
Heartburn
Hemorrhoids
Hernia
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Hyperlipidemia
Hypertension
Hypothyroidism
Insomnia
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Intestinal Diverticulitis
Intestinal Diverticulosis
Iron Metabolism Disorders
Itchy Skin
Joint Pain
Leukocytopenia
Lichen Simplex Chronicus
Limb Swelling Caused by Fluid Overload
Lipid Disorders
Liver Damage from Alcohol
Malnutrition
Mineral Metabolism Disorders
Mood Disorders (Dysthymia and Cyclothymia)
Muscle Cramping
Muscle Spasm
Noninfectious Gastroenteritis and Colitis
Obesity
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Onychogryphosis
Osteoarthritis
Osteoarthritis of Foot
Osteoarthritis of Shoulder
Osteoarthritis of Spine
Overweight
Reflux Esophagitis
Secondary Hypertension
Secondary Renovascular Hypertension
Shortness of Breath
Sleep Apnea
Thrush
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Trigeminal Neuralgia
Urinary Incontinence
Urinary Tract Infection (UTI)
Venous Embolism and Thrombosis
Viral Hepatitis
Wheezing
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Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
Endoscopy
Liver Biopsy

Accepted Insurance Plans

* Please verify this information when scheduling an appointment.
  • Preferred Blue PPO
    Blue Cross Blue Shield of Massachusetts PPO
  • Open Access Plus
    Cigna PPO
  • Curative PPO
    Curative PPO Plus
    Curative EPO
  • Nexus Open Access
    Medica Choice
    Options PPO
    Choice Plus POS
    Navigate HMO
    Navigate POS
  • Pathway Enhanced-ME POS
    Maine HMO
    Pathway-ME HMO
    Blue Choice-ME PPO
  • Blue Card PPO
  • Select
    Managed Choice (Open Access) POS
    Elect Choice (Open Access) EPO
    Aetna
    Choice Plus POS II
    Premier Care Network Plus - Innovation Health
    Open Choice PPO
  • Tufts PPO
  • First Health (Coventry Health Care) PPO

Where Dr. John Walker, DO Sees Patients

  1. 1 Mainehealth Gastroenterology-Biddeford
    9 Healthcare Dr Ste 202, Biddeford, ME 04005
  2. 2 Office
    8000 Research Forest Dr, Spring, TX 77382
  3. 3 Mainehealth Maine Medical Center Portland
    22 Bramhall St, Portland, ME 04102
  4. 4 Nordx
    1 Medical Center Dr, Biddeford, ME 04005

What Patients Say

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Meet Dr. John Walker, DO

Specialties*
Internal Medicine
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Common Questions and Answers
Responses are sourced directly from patients.
Does Dr. Walker communicate via email?
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Does Dr. Walker offer telehealth services or virtual visits?
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Does Dr. Walker offer an online patient portal?
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Does Dr. Walker have free onsite parking?
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Does Dr. Walker offer weekend visits?
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Does Dr. Walker offer evening visits?
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Does Dr. Walker specialize in working with children or adolescents?
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Does Dr. Walker specialize in working with seniors?
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Does Dr. Walker specialize in couples therapy?
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Does Dr. Walker specialize in working with LGBTQ+ community?
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Does Dr. Walker accept insurance?
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FAQs About Dr. Walker's Practice

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. John Walker, DO. To arrange an appointment, call the number on Dr. Walker's profile.

Dr. John Walker, DO is affiliated with Maine Medical Center.

Yes, Dr. John Walker, DO holds board certification in Gastroenterology and Internal Medicine.

Training & Medical Education
Board Certifications
  • Gastroenterology and Internal Medicine
Board Certifications
What’s a board certification and why is it important that my provider has one?

A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.

Hospitals Where Dr. John Walker, DO Practices

  • Maine Medical Center

    22 Bramhall St, Portland, ME

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