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Dr. NellAnn Hennon, DO

Dr. NellAnn Hennon, DO

Family Medicine ·  Female

  

Dr. NellAnn Hennon, DO is a family medicine specialist in O Fallon, IL and has been practicing for 16 years. She specializes in family medicine.


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Dr. Hennon accepts

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(618) 207-4293

Dr. Hennon accepts the following insurance:

Aetna
Aetna HMO
Choice Plus POS II
Anthem Blue Cross Blue Shield
Anthem Blue Cross Blue Shield PPO
Blue Cross Blue Shield
Blue Card PPO
Cigna
Cigna HMO
Cigna PPO
Open Access Plus
Coventry Health Care
Coventry Health America PPO
First Health (Coventry Health Care)
First Health (Coventry Health Care) PPO
HAP Insurance
Health Alliance PPO
HealthLink
HealthLink PPO
Humana
Choice Care PPO
MultiPlan
MultiPlan PPO
PHCS Network PPO

Background Check

No malpractice claims found for Illinois
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Experience Check

Check if Dr. Hennon treats your condition or procedure

Dr. Hennon's conditions and procedures:

  • Abdominal Disorders
  • Abdominal Pain
  • Abnormal Thyroid
  • Abscess or Cyst Drainage or Aspiration
  • Abscess or Fluid Incision and Drainage
  • Achilles Tendinitis
  • Acidosis
  • Acne
  • Actinic Keratosis
  • Acute Bronchitis
  • Acute Deep Vein Thrombosis (DVT)
  • Acute Laryngitis
  • Acute Pharyngitis
  • Acute Sinusitis
  • Acute Tonsillitis
  • Acute Upper Respiratory Infection
  • Acute Venous Embolism Thrombosis
  • ADHD and-or ADD
  • Administrative Physical
  • Advance Directive End of Life Planning
  • All Headaches (incl. Migraine)
  • All Types of Food Poisoning
  • Allergic Conjunctivitis
  • Allergic Reaction
  • Allergic Rhinitis
  • Anal Disorders
  • Anal or Rectal Pain
  • Anemia
  • Anemia and Iron Deficiency Screening
  • Ankle Sprain and Achilles Tendon Sprain or Rupture
  • Ankle Sprains and Strains
  • Anxiety
  • Arthritis
  • Arthritis of the Elbow
  • Asthma
  • Asymptomatic Post-Menopausal Status
  • Ataxia
  • Atherosclerosis
  • Athlete's Foot
  • Atopic Dermatitis (Eczema)
  • Atrophic Vaginitis
  • Autonomic Disorders
  • Back Pain
  • Balanoposthitis
  • Bedsores
  • Bedwetting
  • Bell's Palsy
  • Bird Flu
  • Bladder Diseases
  • Bladder Infection
  • Blood Disorders
  • Blood in Urine (Hematuria)
  • Boil
  • Bone Disorders
  • Breast Diseases
  • Breast Pain
  • Bronchitis
  • Bruise of Face, Scalp, or Neck
  • Bunion
  • Burn Injuries
  • Bursitis
  • Calcium Metabolism Disorders
  • Candidiasis of Skin and Nails
  • Canker Sore
  • Care Coordination for Complex Conditions and Procedures
  • Carpal Tunnel Syndrome
  • Celiac Disease
  • Cellulitis
  • Chest Pain
  • Chickenpox
  • Chlamydia Infections
  • Cholesterol Screening
  • Chronic Deep Vein Thrombosis (DVT)
  • Chronic Fatigue Syndrome
  • Chronic Interstitial Cystitis
  • Chronic Neck Pain
  • Chronic Pain
  • Chronic Sinusitis
  • Chronic Tonsillitis
  • Coccygeal Pain
  • Cold Sore
  • Conduct Disorder
  • Confusion
  • Constipation
  • COPD (Chronic Obstructive Pulmonary Disease)
  • Coronary Artery Disease (CAD)
  • Cough
  • Deep Vein Thrombosis (DVT)
  • Dehydration
  • Dementia or Depression Screening
  • Dermatitis
  • Dermatitis Due to Drugs
  • Dermatitis Due to Substances Taken Internally
  • Diabetes Counseling
  • Diabetes Mellitus, Secondary
  • Diabetes Screening
  • Diabetes Type 1
  • Diabetes Type 2
  • Diabetes With Renal Manifestations
  • Diabetic Polyneuropathy
  • Diarrhea
  • Difficulty With Walking
  • Diverticulosis, Intestinal
  • Dizziness
  • Dysentery
  • Dysphagia
  • Dysthymia (Chronic Depression)
  • Dysthymia and Cyclothymia (Mood Disorders)
  • Ear Ache
  • Ear Disorders
  • Earwax Buildup
  • Elbow Injuries
  • Elbow Sprain
  • Electrocardiogram (EKG)
  • Emphysema
  • Encounters for Normal Pregnancies
  • Enlarged Prostate (BPH)
  • Enteritis
  • Erectile Dysfunction
  • Erythema Multiforme
  • Esophageal Diseases
  • Esophagitis
  • Essential Tremor
  • Excessive Sweating
  • Febrile Convulsion
  • Fever
  • Fibromyalgia
  • Folliculitis
  • Food Poisoning
  • Foot Conditions
  • Foot Sprain
  • Fungal Infections
  • Fungal Nail Infection
  • Gait Abnormality
  • Ganglion Cyst
  • Gas-Bloat Syndrome
  • Gastritis
  • Gastroesophageal Reflux Disease (GERD)
  • Gastrointestinal Diseases
  • Gastroparesis
  • Genital Herpes
  • Genital Warts
  • Gestational Diabetes
  • Gonorrhea Screening
  • Gout
  • Hair Loss
  • Hammer Toe
  • Headache
  • Heart Disease
  • Heart Palpitations
  • Heartburn
  • Hemorrhoids
  • Hepatitis A Screening
  • Hepatitis B Virus Screening
  • Hepatitis C Virus Screening
  • Hepatitis Screening
  • Herpes Simplex Infection
  • Herpes Simplex Screening
  • Herpes Zoster Without Complication
  • Hidradenitis
  • Hip Pointer Injuries
  • Hip Sprain
  • HIV Screening
  • Hives
  • Hoarse Voice (Dysphonia)
  • Human Papillomavirus DNA Testing
  • Hypercalcemia
  • Hyperkalemia
  • Hyperlipidemia
  • Hypertension
  • Hypertensive Chronic Kidney Disease
  • Hypoglycemia
  • Hypokalemia
  • Hypotension
  • Hypotension (Excluding Maternal)
  • Hypothyroidism
  • Immunization
  • Impetigo
  • Incision and Removal of Foreign Object
  • Indigestion
  • Influenza (Flu)
  • Insomnia
  • Iron Metabolism Disorders
  • Irritable Bowel Syndrome
  • Itchy Skin
  • Jock Itch
  • Joint Pain
  • Kidney Infection
  • Kidney Infection, Acute
  • Kidney Stone Pain (Renal Colic)
  • Knee Disorders
  • Knee Sprain
  • Lactose Intolerance
  • Laryngitis
  • Larynx Conditions
  • Lateral and Medial Epicondylitis (Tennis and Golf Elbow)
  • Leg and Foot Ulcers
  • Lice
  • Limb Cramp
  • Limb Pain
  • Limb Swelling
  • Limb Swelling Caused by Fluid Overload
  • Lipid Disorders
  • Liver Function Test
  • Low Back Pain
  • Low Blood Oxygen Level
  • Lyme Disease
  • Magnesium Metabolism Disorders
  • Malaise and Fatigue
  • Malnutrition
  • Menopausal and Postmenopausal Disorders
  • Menstrual Disorders (incl. Dysmenorrhea)
  • Migraine
  • Mineral Metabolism Disorders
  • Moles (Benign Skin Lesions)
  • Motion Sickness
  • Muscle Spasm
  • Muscle Weakness
  • Nail and Nail Bed Infection
  • Nausea
  • Neck Muscle Strain
  • Newborn Jaundice
  • Newborn Metabolic Screening
  • Nighttime Urination (Nocturia)
  • Non-Alcoholic Fatty Liver Disease
  • Noninfectious Gastroenteritis and Colitis
  • Nosebleed
  • Obesity
  • Osteoarthritis
  • Osteoarthritis of Ankle and Foot
  • Osteoarthritis of Hand or Wrist
  • Osteoarthritis of Hands
  • Osteoarthritis of Hip
  • Osteoarthritis of Hip and Thigh
  • Osteoarthritis of Knee
  • Osteoarthritis of Shoulder
  • Osteopenia
  • Osteoporosis
  • Osteoporosis Screening
  • Otitis Media
  • Outer Ear Infection
  • Overactive Bladder
  • Overweight
  • Painful Urination (Dysuria)
  • Pap Smear
  • Pap Smear Abnormalities
  • Partial Lung Collapse
  • Patellofemoral Pain Syndrome or Knee Pain
  • Pericardial Disease
  • Perimenopause
  • Peripheral Nerve Disorders
  • Peripheral Vascular Disease (PAD, PVD)
  • Pharyngitis
  • Phlebitis and Thrombophlebitis
  • Phosphorus Metabolism Disorders
  • Pinkeye (Conjunctivitis)
  • Plantar Fasciitis
  • Plantar Wart
  • Pneumonia
  • Poison Ivy, Poison Oak, or Poison Sumac Poisoning
  • Polymyalgia Rheumatica (PMR)
  • Polyneuropathy
  • Polyuria
  • Postpartum Depression
  • Pregnancy Test
  • Pregnancy-Related Disorders
  • Prostate Cancer Screening
  • Prostatitis
  • Pulmonary Disease
  • Pulmonary Function Test
  • Radiculopathy (Not Due to Disc Displacement)
  • Rapid Flu Test
  • Rash
  • Raynaud's Disease
  • Reflux Esophagitis
  • Restless Leg Syndrome
  • Rh Incompatibility Screening
  • Rib Fracture
  • Rickets
  • Ringworm
  • Rosacea
  • Salivary Gland Stones and Inflammation
  • Sarcoidosis
  • Scabies
  • Sciatica (Not Due to Disc Displacement)
  • Seborrheic Dermatitis
  • Second-Degree Burns
  • Sepsis
  • Sexual Dysfunction
  • Sexually Transmitted Diseases (STDs)
  • Sexually Transmitted Infections Screening
  • Shingles
  • Shortness of Breath
  • Shoulder Disorders
  • Sinusitis
  • Skin Infections
  • Sleep Apnea
  • Sleep Disorders
  • Smoking Cessation Counseling
  • Sore Throat
  • Speech, Language and Learning Disorders
  • Spondylosis
  • Sprains and Strains (incl. Muscle Tear)
  • Stomach Diseases
  • Strep Throat
  • Sunburn
  • Swine Flu
  • Symptomatic Menopause
  • Syphilis Infections
  • Tension Headache
  • Testicular Dysfunction
  • Thrombosis
  • Thyroid Disease
  • Thyroid Screening
  • Tinea Versicolor
  • Tinnitus
  • Tobacco Use Disorder
  • Tonsillitis
  • Transient Ischemic Attack (TIA)
  • Tremor
  • Trichomoniasis
  • Trigeminal Neuralgia
  • Ulcer
  • Urinary Disorders
  • Urinary Incontinence
  • Urinary Stones
  • Urinary Tract Infection (UTI)
  • Vaginitis and-or Vaginosis
  • Venous Embolism and Thrombosis
  • Venous Insufficiency
  • Vertigo
  • Viral Enteritis
  • Viral Infection
  • Vitamin D Deficiency
  • Warts
  • Wellness Examination
  • Wheezing
  • Yeast Infections

About Me

Care Philosophy

Inspired by our Franciscan values of Respect, Care, Competence and Joy, HSHS Medical Group providers are devoted to elevating the patient as the focus of our existence. We will prioritize our decision-making to place the needs of our patients first. ...

Specialties

  • Family Medicine

Board Certifications

Education

Forest Park Hospital
Residency Hospital
2003
Des Moines University, College Of Osteopathic Medicine And Surgery
Medical School
Washington University, St Louis
Undergraduate School
2003

Awards

Dr. Hennon's Reviews

Likelihood to recommend Dr. Hennon

4.8

Based on 20 reviews

5 Stars
85%
(17)
4 Stars
15%
(3)
3 Stars
0%
(0)
2 Stars
0%
(0)
1 Star
0%
(0)

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Average Wait Time
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Dr. Hennon's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
What People Say About Dr. NellAnn Hennon, DO
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Dr. Hennon is an awesome Doctor. She has great insight, and is very knowlegable.
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Smart, funny, quick ,compassionate.
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Dr. Hennon demonstrates sincere concern. She is thorough and compassionate. She has been my primary care physician for years. She takes the time to listen and includes me in my healthcare decisions. The only criticism I have is for her assistant, Nicole, lacks attention to detail. Among other things Nicole is responsible for submitting and prescriptions and coordinating refills. She has often failed to process my refills. The office manager has had to intercede to correct the problem.
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I think she's wonderful!!! Excellent bedside manners and explains things well. She takes such great care with my parents. I would recommend her highly.
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Dr Hennon is a great person. Very personable, easy to talk with, and just a warm person overall. She has a great sense of humor as well :-). I'd recommend her anyday.
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