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Dr. Mary O'Brien, MD
Internal Medicine* Age 45
Dr. Mary O'Brien, MD
Map Pin Small South Weymouth, MA
Dr. Mary O'Brien, MD is an Internist in South Weymouth, MA.
Dr. Mary O'Brien, MD

Dr. Mary O'Brien, MD

Internal Medicine* Age 45
South Weymouth, MA
Accepting new patients
Dr. Mary O'Brien, MD is an Internist in South Weymouth, MA.
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About Dr. Mary O'Brien, MD

Dr. Mary O'Brien, MD is an Internist in South Weymouth, MA. Dr. O'Brien's office accepts new patients. Dr. O'Brien is board certified in Internal Medicine and accepts multiple insurance plans.

Experience Check

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Arterial Blood Gas Test (ABG)
All Headaches (incl. Migraine)
Electrocardiogram (EKG)
Arterial Blood Gas Test (ABG)
All Headaches (incl. Migraine)
Electrocardiogram (EKG)
Arterial Blood Gas Test (ABG)
All Headaches (incl. Migraine)
Electrocardiogram (EKG)
Constipation
Nausea
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Bruise of Face, Scalp, or Neck
Shortness of Breath
Joint Pain
Limb Pain
Tobacco Use Disorder
Urinary Tract Infection (UTI)
Dehydration
Immunization Administration
Urinary Incontinence
Pharyngitis
Asphyxia and Hypoxemia
Abdominal Pain
Acidosis
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Acute Bronchitis
Acute Coronary Syndrome
Acute Deep Vein Thrombosis (DVT)
Acute Kidney Failure
Acute Lower Respiratory Infection
Acute Postoperative Pain
Acute Sinusitis
Acute Upper Respiratory Infection
Acute Venous Embolism Thrombosis
ADHD and-or ADD
Administrative Physical
Adrenal Gland Diseases
Adult Failure to Thrive
Alcohol Withdrawal
Allergic Rhinitis
Anal or Rectal Pain
Anemia
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Animal Allergies
Anxiety
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Aortic Aneurysm
Aortic Ectasia
Aortic Valve Disease
Arrhythmias
Arthritis
Arthritis of the Elbow
Asthma
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Atherosclerosis
Atrial Fibrillation
Atrial Flutter
Back Pain
Bacterial Sepsis
Balanoposthitis
Bedsores
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Benign Chronic Pain Syndrome
Bladder Infection
Bleeding Disorders
Blood in Urine (Hematuria)
Broken Neck
Bronchitis
Bronchospasm
Cachexia
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Calcium Metabolism Disorders
Cardiomyopathy
Carotid Artery Disease
Cellulitis
Cerebral Artery Thrombosis
Cerebrovascular Disease
Chest Pain
Chest Wall Pain Syndrome
Cholecystitis and Gallstones
Chronic Neck Pain
Chronic Pain
Chronic Pelvic Pain
Chronic Pulmonary Heart Diseases (incl. Pulmonary Hypertension)
Collapsed Lung (Pneumothorax)
Concussion
Congenital Heart Disease
Congestive Heart Failure
COPD (Chronic Obstructive Pulmonary Disease)
Coronary Artery Disease (CAD)
Cough
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Deep Vein Thrombosis (DVT)
Diabetes Type 1
Diabetes Type 2
Diabetes With Renal Manifestations
Diabetic Ketoacidosis
Diabetic Polyneuropathy
Diarrhea
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Difficulty With Walking
Dizziness
Down Syndrome
Dysentery
Dyslipidemia
Dysphagia
Ear Ache
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Embolism
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Emphysema
Enlarged Prostate (BPH)
Epilepsy
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Esophagitis
Essential Tremor
Fever
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Fibromyalgia
Foot Infection
Gait Abnormality
Gallstones
Gastritis
Gastroesophageal Reflux Disease (GERD)
Gastrointestinal Bleeding
Goiter
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Gout
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Head or Neck Lump or Swelling
Headache
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Heart Attack (Acute Myocardial Infarction)
Heart Disease
Hernia
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Herpes Zoster Without Complication
Hiatal Hernia
Humerus Fracture
Hypercalcemia
Hyperkalemia
Hyperlipidemia
Hypertension
Hypertensive Chronic Kidney Disease
Hypertensive Heart and Chronic Kidney Disease
Hypertensive Heart Disease
Hypokalemia
Hyposmolality and Hyponatremia
Hypotension
Hypotension (Excluding Maternal)
Hypothyroidism
Hypoxemia
Influenza (Flu)
Insomnia
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Intestinal Diverticulitis
Intestinal Diverticulosis
Intestinal Obstruction
Irritable Bowel Syndrome
Itchy Skin
Leg and Foot Ulcers
Leukocytopenia
Limb Swelling Caused by Fluid Overload
Lipid Disorders
Liver Damage from Alcohol
Loss of Voice or Hoarse Voice
Low Back Pain
Lyme Disease
Magnesium Metabolism Disorders
Malaise and Fatigue
Malnutrition
Migraine
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Mild Asthma
Mineral Metabolism Disorders
Muscle Cramping
Muscle Spasm
Nail and Nail Bed Infection
Nail Infection
Nephrotic Syndrome
Non-Traumatic Brain Injury
Noninfectious Gastroenteritis and Colitis
Nosebleed
Obesity
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Onychomycosis
Osteoarthritis
Osteoarthritis of Foot
Osteoarthritis of Hand
Osteoarthritis of Hand or Wrist
Osteoarthritis of Hip
Osteoarthritis of Hip and Thigh
Osteoarthritis of Knee
Osteoarthritis of Shoulder
Osteoarthritis of Spine
Osteopenia
Osteoporosis
Overactive Bladder
Overweight
Pancreatitis
Partial Lung Collapse
Patellofemoral Pain Syndrome (PFPS)
Pelvic Fracture
Pericardial Disease
Pericarditis
Peripheral Vascular Disease (PAD, PVD)
Pneumonia
Polymyalgia Rheumatica (PMR)
Polyneuropathy
Polyuria
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Primary Pulmonary Hypertension
Prostatitis
Pulmonary Edema
Pulmonary Embolism
Pulmonary Hypertension
Radiculopathy
Reflux Esophagitis
Renal Artery Arteriosclerotic Disease
Respiratory Failure
Restless Leg Syndrome
Rib Fracture
Ringworm
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Salivary Gland Stones and Inflammation
Secondary Diabetes Mellitus
Secondary Hypertension
Seizure Disorders
Sepsis
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Sick Sinus Syndrome
Sinus Bradycardia
Sinus Tachycardia
Sinusitis
Sleep Apnea
Stroke
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Supraventricular Tachycardia
Swine Flu
Thyroid Goiter
Transient Ischemic Attack (TIA)
Tricuspid Valve Disease
Urinary Stones
Vaginitis or Vaginosis
Venous Embolism and Thrombosis
Venous Insufficiency
Vertigo
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Viral Infection
Vitamin B Deficiency
Vitamin D Deficiency
Wheezing
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Nail Avulsion and Excision

Accepted Insurance Plans

* Please verify this information when scheduling an appointment.
  • Flex Connecticut EPO
  • First Health (Coventry Health Care) PPO
  • Curative EPO
    Curative PPO Plus
    Curative PPO
  • Elect Choice (Open Access) EPO
    Premier Care Network Plus - Innovation Health
    Open Choice PPO
  • MVP Health Plan EPO

Where Dr. Mary O'Brien, MD Sees Patients

  1. 1 Office
    55 Fogg Rd, South Weymouth, MA 02190
    Icon Directions Right Arrow Directions Phone Icon (781) 624-8000
  2. 2 Rhode Island Hospital
    593 Eddy St, Providence, RI 02903
    Icon Directions Right Arrow Directions Phone Icon (401) 444-4083

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Meet Dr. Mary O'Brien, MD

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. O'Brien communicate via email?
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Does Dr. O'Brien offer telehealth services or virtual visits?
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Does Dr. O'Brien offer an online patient portal?
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Does Dr. O'Brien have free onsite parking?
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Does Dr. O'Brien offer weekend visits?
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Does Dr. O'Brien offer evening visits?
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Does Dr. O'Brien specialize in working with children or adolescents?
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Does Dr. O'Brien specialize in working with seniors?
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Does Dr. O'Brien specialize in couples therapy?
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Does Dr. O'Brien specialize in working with LGBTQ+ community?
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FAQs About Dr. O'Brien'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. Mary O'Brien, MD. To arrange an appointment, call the number on Dr. O'Brien's profile.

Dr. Mary O'Brien, MD is affiliated with South Shore Hospital.

Yes, Dr. Mary O'Brien, MD holds board certification in Internal Medicine.
Training & Medical Education
Board Certifications
  • 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. Mary O'Brien, MD Practices

  • South Shore Hospital

    55 Fogg Rd, South Weymouth, MA

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