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Dr. John Hartweger, MD
Internal Medicine* Age 52
Dr. John Hartweger, MD
5.0 (1 Ratings)
Map Pin Small Saint Peters, MO
Dr. John Hartweger, MD is an Internist in Saint Peters, MO.
Dr. John Hartweger, MD
5.0 (1 Ratings)

Dr. John Hartweger, MD

Internal Medicine* Age 52
Saint Peters, MO
Call for new patient details
27 years of experience
Dr. John Hartweger, MD is an Internist in Saint Peters, MO.

About Dr. John Hartweger, MD

Dr. Hartweger graduated from UNIVERSITY OF MISSOURI / KANSAS CITY CAMPUS. Dr. John Hartweger, MD is an Internist in Saint Peters, MO and has 27 years experience. Dr. Hartweger has experience treating conditions like Dehydration, Malnutrition, Tobacco Use Disorder, Hyposmolality and Hyponatremia, Bedsores, Non-Traumatic Brain Injury, Respiratory Failure, Pneumonia, Hypokalemia, Hypertensive Heart and Chronic Kidney Disease, Asphyxia and Hypoxemia, Hypotension, Acidosis, Diabetic Ketoacidosis, Diabetic Polyneuropathy, Hypotension (Excluding Maternal), Pulmonary Edema, Dyslipidemia, Anxiety, Leg and Foot Ulcers, Constipation, Skin Ulcer, Ileus and Hyperkalemia among other conditions at varying frequencies. Dr. Hartweger's office is not accepting new patients. Dr. Hartweger is board certified in Internal Medicine.

Experience Check

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Dehydration
Malnutrition
Tobacco Use Disorder
Dehydration
Malnutrition
Tobacco Use Disorder
Dehydration
Malnutrition
Tobacco Use Disorder
Hyposmolality and Hyponatremia
Bedsores
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Non-Traumatic Brain Injury
Respiratory Failure
Pneumonia
Hypokalemia
Hypertensive Heart and Chronic Kidney Disease
Asphyxia and Hypoxemia
Hypotension
Acidosis
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Diabetic Ketoacidosis
Diabetic Polyneuropathy
Hypotension (Excluding Maternal)
Pulmonary Edema
Dyslipidemia
Anxiety
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Leg and Foot Ulcers
Constipation
Skin Ulcer
Ileus
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Hyperkalemia
Acute Kidney Failure
Hypertensive Chronic Kidney Disease
Hypoxemia
Bladder Infection
Bacterial Sepsis
Stroke
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Adult Failure to Thrive
Hypertensive Heart Disease
Chronic Pulmonary Heart Diseases (incl. Pulmonary Hypertension)
Gout
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Pulmonary Hypertension
Malaise and Fatigue
Intestinal Obstruction
Embolism
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Chronic Pain
Epilepsy
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Cachexia
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COPD (Chronic Obstructive Pulmonary Disease)
Bleeding Disorders
Arterial Blood Gas Test (ABG)
Gastroesophageal Reflux Disease (GERD)
Nephritis and Nephropathy
Congestive Heart Failure
Urinary Tract Infection (UTI)
Heart Attack (Acute Myocardial Infarction)
Cerebrovascular Disease
Pulmonary Embolism
Intestinal Diverticulitis
Diabetes With Renal Manifestations
Acute Venous Embolism Thrombosis
Venous Embolism and Thrombosis
Viral Enteritis
Hyperlipidemia
Emphysema
Acute Deep Vein Thrombosis (DVT)
Acute Lower Respiratory Infection
Enteritis
Hypertension
Arthritis
Influenza (Flu)
Electrocardiogram (EKG)
Back Pain
Atrial Fibrillation
Urinary Incontinence
Transient Ischemic Attack (TIA)
Joint Pain
Fibromyalgia
Deep Vein Thrombosis (DVT)
Cardiomyopathy
All Headaches (incl. Migraine)
Coronary Artery Disease (CAD)
Alcohol Withdrawal
Arrhythmias
Metabolic Dysfunction Associated Steatotic Liver Disease (MASLD)
Migraine
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Asthma
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Acute Coronary Syndrome
Atherosclerosis
Peripheral Vascular Disease (PAD, PVD)
Headache
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Neurogenic Bladder
Cholecystitis and Gallstones
Sick Sinus Syndrome
Osteoarthritis
Gallstones
Adrenal Gland Diseases
Heart Disease
Enlarged Prostate (BPH)
Hypercalcemia
Secondary Renovascular Hypertension
Dysphagia
Pancreatitis
Pelvic Abscess
Aortic Stenosis
Vitamin D Deficiency
Immunization Administration
Ventricular Tachycardia (VT)
Coccyx or Sacrum Fracture
Gastrointestinal Bleeding
Sinus Tachycardia
Fever
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Noninfectious Gastroenteritis and Colitis
Alkalosis
Gastritis
Tremor
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Aortic Valve Disease
Sinus Bradycardia
Irritable Bowel Syndrome
Dizziness
Atrial Flutter
Limb Pain
Chest Pain
Diarrhea
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Acute Bronchitis
Carotid Artery Disease
Nausea
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Intestinal Diverticulosis
Low Back Pain
Difficulty With Walking
Cardiomyopathy, Dilated
Bronchitis
Blood in Urine (Hematuria)
Secondary Hypertension
Thrush
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Hypoglycemia
Hemorrhoids
Mitral Valve Regurgitation
Tricuspid Valve Disease
Bronchiectasis
Acute Upper Respiratory Infection
Essential Tremor
Foot Infection
Leukocytopenia
Urinary Stones
Aortic Aneurysm
Osteopenia
Overactive Bladder
Hepatitis C
Reflux Esophagitis
Sciatica
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Abdominal Pain
Vaginitis or Vaginosis
Liver Damage from Alcohol
Esophagitis
Mild Asthma
Cerebral Edema
Shortness of Breath
Cerebral Embolism
Venous Insufficiency
Collapsed Lung (Pneumothorax)
Endocarditis
Rib Fracture
Rheumatic Aortic Valve Disorders
Fever-Induced Seizure
Tubo-Ovarian Abscess
Actinic Keratosis
Acute Kidney Infection
Acute Pharyngitis
Acute Sinusitis
All Types of Food Poisoning
Allergic Conjunctivitis
Allergic Rhinitis
Anal or Rectal Pain
Anaphylaxis
Anemia
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Angina
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Angioedema
Animal Allergies
Ankle Fracture
Ankle Sprains and Strains
Anorectal Abscess
Aortic Ectasia
Aortic Embolism and Thrombosis
Aortic Valve Regurgitation
Arthritis of the Elbow
Aspergillosis
Ataxia
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Athlete's Foot
Atrial Septal Defect
Atrophic Vaginitis
Autoimmune Thyroid Diseases
Avascular Necrosis
Balanoposthitis
Bell's Palsy
Benign Chronic Pain Syndrome
Biliary Atresia
Bladder Atony
Blepharitis
Boil
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Brain Aneurysm
Broken Neck
Bronchospasm
Bruise of Face, Scalp, or Neck
Bursitis
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Calcium Metabolism Disorders
Candidiasis of Skin and Nails
Cardiomyopathy, Hypertrophic
Celiac Disease
Cellulitis
Cerebral Artery Thrombosis
Chronic Deep Vein Thrombosis (DVT)
Chronic Fatigue Syndrome
Chronic Neck Pain
Chronic Pelvic Pain
Chronic Sinusitis
Chronic Venous Embolism Thrombosis
Clavicle Fracture
Coccygeal Pain
Common Cold
Concussion
Confusion
Congenital Anomalies of Kidney
Contact Dermatitis
Cough
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Cranial Trauma
Cryptococcosis
Cushing's Syndrome
Cystic Fibrosis
Dermatitis Due to Drugs
Dermatitis Due to Substances Taken Internally
Diabetes Type 1
Diabetes Type 2
Down Syndrome
Drug Withdrawal
Duodenal Ulcer
Duodenitis
Dysentery
Earwax Buildup
Eczema and Contact Dermatitis
Elbow Bursitis
Eosinophilia
Erectile Dysfunction
Esophageal Ulcer
Esophageal Varices
Food Poisoning
Foot Sprain
Gait Abnormality
Ganglion Cyst
Gas-Bloat Syndrome
Gastric Ulcer
Gastroparesis
Gastroptosis
Genital Herpes
Goiter
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Hammer Toe
Head or Neck Lump or Swelling
Heart Palpitations
Heartburn
Hemispacial Neglect
Hepatitis A
Hernia
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Herpes Simplex Infection
Herpes Zoster Without Complication
Hip Pointer
Hip Sprain
Hives
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Human Immunodeficiency Virus (HIV)
Humerus Fracture
Hydrocele
Hyperthyroidism
Hypogammaglobulinemia
Hypogonadism
Hypothyroidism
Iliac Aneurysm
Indigestion
Ingrown Nail
Insomnia
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Internal Derangement of Knee
Intertrigo
Intracerebral Hemorrhage
Iron Metabolism Disorders
Ischemic Colitis
Itchy Skin
Kidney Infection
Kidney Stone Pain (Renal Colic)
Lateral and Medial Epicondylitis (Tennis and Golf Elbow)
Limb Swelling Caused by Fluid Overload
Lipid Disorders
Long COVID Disorder
Lymphangitis
Magnesium Metabolism Disorders
Meningitis
Menstrual Disorders
Mesenteric Lymphadenitis
Mineral Metabolism Disorders
Mitral Valve Prolapse
Mitral Valve Stenosis
Muscle Spasm
Muscle Weakness
Mycobacterial Lung Infection
Nail and Nail Bed Infection
Nail Infection
Nasopharyngitis
Neck Strain (incl. Whiplash Injury)
Nephrotic Syndrome
Nerve Root Injury and Plexus Disorders (incl. Pinched Nerve)
Nighttime Urination (Nocturia)
Nosebleed
Obesity
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Onychomycosis
Opioid Withdrawal
Orchitis
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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
Osteoporosis
Otitis Media
Overweight
Painful Urination (Dysuria)
Patellofemoral Pain Syndrome (PFPS)
Pelvic Fracture
Peptic Ulcer
Perforated Eardrum
Pericardial Disease
Pericarditis
Peripheral Arterial Embolism and Thrombosis
Peripheral Nerve Disorders
Peritonsillar Abscess
Pharyngitis
Phimosis
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Phlebitis and Thrombophlebitis
Phosphorus Metabolism Disorders
Pinkeye (Conjunctivitis)
Plantar Fasciitis
Pollen Allergy
Polymyalgia Rheumatica (PMR)
Polymyositis
Polyneuropathy
Polyneuropathy Due to Alcohol and Drugs
Polyuria
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Post-Concussion Syndrome
Post-Vaccination Fever
Postherpetic Neuralgia
Postural Orthostatic Tachycardia Syndrome
Priapism
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Primary Biliary Cholangitis
Primary Pulmonary Hypertension
Prostatitis
Proteinuria
Pulmonary Valve Disease
Radiculopathy
Rash
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Raynaud's Disease
Renal Artery Arteriosclerotic Disease
Restless Leg Syndrome
Rhabdomyolysis
Ringworm
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Rosacea
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Rotator Cuff Tear
Rotator Cuff Tendinosis
Salivary Gland Stones and Inflammation
Sarcoidosis
Scrotal Pain
Sebaceous Cysts
Second Degree Heart Block
Secondary Diabetes Mellitus
Septic Embolism
Sexually Transmitted Diseases (STDs)
Shingles
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Sickle Cell Disease
Sinusitis
Sleep Apnea
Speech, Language and Learning Disorders
Spinal Cord Injury
Sprains and Strains (incl. Muscle Tear)
Strep Throat
Subarachnoid Hemorrhage
Subdural Hemorrhage
Supraventricular Tachycardia
Swine Flu
Tension Headache
Testicular Dysfunction
Third Degree Heart Block
Throat Pain
Thyroid Goiter
Thyroiditis
Tinnitus
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Torticollis
Trigeminal Neuralgia
Type 2 Heart Block - Mobitz
Unstable Angina
Urinary Hesitancy
Venous Compression
Venous Hypertension
Ventricular Fibrillation
Vertigo
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Viral Hepatitis
Viral Infection
Vitamin B Deficiency
Vitamin B12 Deficiency
Vocal Cord Paralysis
Wheezing
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Wrist Sprain or Strain
Yeast Infections
Abscess or Cyst Drainage or Aspiration
Abscess or Fluid Incision and Drainage

Accepted Insurance Plans

* Please verify this information when scheduling an appointment.
  • Cigna HMO
    Open Access Plus
    Cigna PPO
    LocalPlus

Where Dr. John Hartweger, MD Sees Patients

  1. 1 Hospital based practice
    10 Hospital Dr, Saint Peters, MO 63376
    Icon Directions Right Arrow Directions Phone Icon (314) 317-0600

What Patients Say

Likelihood to recommend Dr. Hartweger
5.0
Based on 1 Reviews
5 Stars (1)
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3 Stars (0)
2 Stars (0)
1 Star (0)

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Patient Reviews
Jun 08, 2025
He really cares about his patients and try to find out what the root cause is for the patient. My Dad has him for a doctor in the hospital. One doctor was very pushy about something they wanted taken care of right away. Not Dr Hart, he said we still had time to decide. My dad's primary care doctor said he's anemic. So, how can we solve this. From looking at the Dr Progress Notes, he's trying to figure out what's happening to my Dad. He's taken him off lots of prescription drugs. I seriously think he was being over medicated! Thank you so much Dr Hart!
— Jun 08, 2025
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Meet Dr. John Hartweger, MD

Specialties*
Hospital Medicine
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
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Does Dr. Hartweger communicate via email?
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Does Dr. Hartweger offer telehealth services or virtual visits?
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FAQs About Dr. Hartweger'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 Hartweger, MD. To arrange an appointment, call the number on Dr. Hartweger's profile.

Dr. Hartweger frequently treats the following conditions: Dehydration, Malnutrition, Tobacco Use Disorder, Hyposmolality and Hyponatremia, Bedsores, Non-Traumatic Brain Injury, Respiratory Failure, Pneumonia, Hypokalemia, Hypertensive Heart and Chronic Kidney Disease, Asphyxia and Hypoxemia, Hypotension, Acidosis, Diabetic Ketoacidosis, Diabetic Polyneuropathy, Hypotension (Excluding Maternal), Pulmonary Edema, Dyslipidemia, Anxiety, Leg and Foot Ulcers, Constipation, Skin Ulcer, Ileus and Hyperkalemia. See more on Sharecare.

Dr. John Hartweger, MD is affiliated with Barnes-Jewish St. Peters Hospital.

Yes, Dr. John Hartweger, MD holds board certification in Internal Medicine.
Training & Medical Education
Medical Education
  • UNIVERSITY OF MISSOURI / KANSAS CITY CAMPUS
    1999
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. John Hartweger, MD Practices

  • Barnes-Jewish St. Peters Hospital

    10 Hospital Dr, Saint Peters, MO

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