Dr. Daniel Leonard, DO

Cardiovascular & Pulmonary Diseases •  Male
  
Dr. Leonard
Accepting new patients

Affinity Heart & Lung Center

1506 S Oneida St Appleton, WI 54915

Make an Appointment

(920) 730-6700

Dr. Daniel Leonard, DO is a Cardiovascular & Pulmonary Disease Specialist in Appleton, WI. Dr. Leonard has more experience with Obstructive Lung Disease and Sleep-disordered Breathing than other specialists in his area. He is affiliated with medical facilities Ascension Northeast Wisconsin Mercy and Ascension Northeast Wisconsin Saint Elizabeth. He is accepting new patients. Be sure to call ahead with Dr. Leonard to book an appointment.


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At a Glance

  • Practices at Top Hospital
    Outstanding Patient Experience Award™ See hospitals
  • Hospital Satisfaction
    Patients said they were highly satisfied at this doctor's hospital. See hospitals

Insurance Check

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Dr. Leonard accepts

Accepted insurance can change. Please double-check when making an appointment.

(920) 730-6700

Dr. Leonard accepts the following insurance:

Aetna
Choice Plus POS II
Anthem Blue Cross Blue Shield
Anthem Blue Cross Blue Shield HMO
Blue Preferred Plus POS
Cigna
Cigna PPO
Open Access Plus
First Health (Coventry Health Care)
First Health (Coventry Health Care) PPO
Humana
Choice Care PPO
MultiPlan
MultiPlan PPO
PHCS Network PPO

Background Check

Healthgrades does not collect malpractice claims information for Wisconsin
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

Frequently Treated by Dr. Leonard

Based on treatment records, we have identified the following as areas of care that Dr. Leonard treats more often than their peers. If you are unsure whether Dr. Leonard treats other conditions, please contact the office at (920) 730-6700.

Obstructive Lung Disease

Obstructive lung disease specialists diagnose and treat conditions including COPD, emphysema, asthma and cystic fibrosis that cause blockages or narrowing in the airways of the lungs, making breathing difficult.Compare with other Obstructive Lung Disease specialists.

Typically treats 92% more than similar doctors

Based on claims data for 4 conditions and procedures

TreatmentsTreatment Frequency
COPD (Chronic Obstructive Pulmonary Disease)
very high
very high

Treatment Frequency

Dr. Leonard treats COPD (Chronic Obstructive Pulmonary Disease) more than 97% of their peers

Dr. Leonard treats this condition more than 97% of their peers

Asthma
very high
very high

Treatment Frequency

Dr. Leonard treats Asthma more than 92% of their peers

Dr. Leonard treats this condition more than 92% of their peers

Emphysema
very high
very high

Treatment Frequency

Dr. Leonard treats Emphysema more than 90% of their peers

Dr. Leonard treats this condition more than 90% of their peers

Sleep-disordered Breathing

Sleep-disordered breathing specialists diagnose and treat conditions, such as snoring or obstructive sleep apnea, in which breathing is interrupted during sleep, resulting in symptoms of fatigue, irritability and high blood pressure.Compare with other Sleep-disordered Breathing specialists.

Typically treats 93% more than similar doctors

Based on claims data for 1 condition or procedure

TreatmentsTreatment Frequency
Sleep Apnea
very high
very high

Treatment Frequency

Dr. Leonard treats Sleep Apnea more than 93% of their peers

Dr. Leonard treats this condition more than 93% of their peers

Sleep Disorders
very high
very high

Treatment Frequency

Dr. Leonard treats Sleep Disorders more than 93% of their peers

Dr. Leonard treats this condition more than 93% of their peers

Interstitial Lung Disease

Interstitial lung disease specialists diagnose and treat a range of conditions that cause scarring of lung tissue due to autoimmune disease or environment exposure to harmful materials.Compare with other Interstitial Lung Disease specialists.

Typically treats 50% more than similar doctors

Based on claims data for 3 conditions and procedures

TreatmentsTreatment Frequency
COPD (Chronic Obstructive Pulmonary Disease)
very high
very high

Treatment Frequency

Dr. Leonard treats COPD (Chronic Obstructive Pulmonary Disease) more than 97% of their peers

Dr. Leonard treats this condition more than 97% of their peers

Emphysema
very high
very high

Treatment Frequency

Dr. Leonard treats Emphysema more than 90% of their peers

Dr. Leonard treats this condition more than 90% of their peers

Pulmonary Function Test
very high
very high

Treatment Frequency

Dr. Leonard performs Pulmonary Function Test more than 89% of their peers

Dr. Leonard performs this procedure more than 89% of their peers

Hide other practice areas

Check Dr. Leonard's experience treating your condition or procedure

Dr. Leonard's conditions and procedures:

  • Abdominal Disorders
  • Abdominal Pain
  • Acidosis
  • Acute Bronchitis
  • Acute Laryngitis
  • Acute Venous Embolism Thrombosis
  • Alkalosis
  • All Headaches (incl. Migraine)
  • Allergic Reaction
  • Allergic Rhinitis
  • Anal Disorders
  • Anaphylaxis
  • Anemia
  • Anemia and Iron Deficiency Screening
  • Anxiety
  • Arterial Blood Gas Test (ABG)
  • Arthritis
  • Arthritis of the Elbow
  • Asthma
  • Asymptomatic Post-Menopausal Status
  • Atherosclerosis
  • Back Pain
  • Bedsores
  • Benign Chronic Pain Syndrome
  • Bladder Diseases
  • Blood Disorders
  • Bone Disorders
  • Breast Diseases
  • Bronchiectasis
  • Bronchitis
  • Bruise of Face, Scalp, or Neck
  • Calcium Metabolism Disorders
  • Chest Pain
  • Cholesterol Screening
  • Chronic Pain
  • Chronic Sinusitis
  • Confusion
  • Constipation
  • COPD (Chronic Obstructive Pulmonary Disease)
  • Coronary Artery Disease (CAD)
  • Cough
  • Deep Vein Thrombosis (DVT)
  • Dehydration
  • Dermatitis
  • Diabetes Mellitus, Secondary
  • Diabetes Screening
  • Diabetes Type 2
  • Diabetes With Renal Manifestations
  • Diabetic Polyneuropathy
  • Dysphagia
  • Ear Disorders
  • Elbow Injuries
  • Electrocardiogram (EKG)
  • Emphysema
  • Enlarged Prostate (BPH)
  • Esophageal Diseases
  • Essential Tremor
  • Fibromyalgia
  • Foot Conditions
  • Gait Abnormality
  • Gastroesophageal Reflux Disease (GERD)
  • Gastrointestinal Diseases
  • Gout
  • Headache
  • Heart Disease
  • Heart Palpitations
  • Hemorrhoids
  • HIV Screening
  • Hypercalcemia
  • Hyperkalemia
  • Hyperlipidemia
  • Hypertension
  • Hypertensive Chronic Kidney Disease
  • Hypoglycemia
  • Hypokalemia
  • Hypotension
  • Hypotension (Excluding Maternal)
  • Hypothyroidism
  • Immunization Administration
  • Indigestion
  • Insomnia
  • Irritable Bowel Syndrome
  • Knee Disorders
  • Laryngitis
  • Larynx Conditions
  • Leg and Foot Ulcers
  • Limb Pain
  • Limb Swelling
  • Limb Swelling Caused by Fluid Overload
  • Lipid Disorders
  • Liver Damage from Alcohol
  • Liver Function Test
  • Low Back Pain
  • Low Blood Oxygen Level
  • Magnesium Metabolism Disorders
  • Malaise and Fatigue
  • Malnutrition
  • Migraine
  • Mineral Metabolism Disorders
  • Mycobacterial Lung Infection
  • Neurogenic Bladder
  • Non-Alcoholic Fatty Liver Disease
  • Noninfectious Gastroenteritis and Colitis
  • Obesity
  • Osteoarthritis
  • Osteoarthritis of Ankle and Foot
  • Osteoarthritis of Hand or Wrist
  • Osteoarthritis of Hands
  • Osteoarthritis of Knee
  • Osteoarthritis of Shoulder
  • Osteopenia
  • Osteoporosis
  • Partial Lung Collapse
  • Pericardial Disease
  • Peripheral Nerve Disorders
  • Peripheral Vascular Disease (PAD, PVD)
  • Phlebitis and Thrombophlebitis
  • Phosphorus Metabolism Disorders
  • Pneumonia
  • Pollen Allergy
  • Polyneuropathy
  • Postnasal Drip
  • Pulmonary Disease
  • Pulmonary Function Test
  • Radiculopathy (Not Due to Disc Displacement)
  • Restless Leg Syndrome
  • Rosacea
  • Sarcoidosis
  • Sepsis
  • Sexually Transmitted Diseases (STDs)
  • Sexually Transmitted Infections Screening
  • Shortness of Breath
  • Shoulder Disorders
  • Shoulder Tendinitis and Tenosynovitis
  • Sinusitis
  • Sleep Apnea
  • Sleep Disorders
  • Smoking Cessation Counseling
  • Stomach Diseases
  • Thrombosis
  • Thyroid Disease
  • Thyroid Screening
  • Tobacco Use Disorder
  • Ulcer
  • Urinary Disorders
  • Urinary Incontinence
  • Urinary Stones
  • Urinary Tract Infection (UTI)
  • Venous Embolism and Thrombosis
  • Venous Insufficiency
  • Vitamin D Deficiency

Dr. Leonard's Reviews

Likelihood to recommend Dr. Leonard

3.3

Based on 3 ratings

5 Stars
33.333333333333336%
(1)
4 Stars
33.333333333333336%
(1)
3 Stars
0%
(0)
2 Stars
0%
(0)
1 Star
33.333333333333336%
(1)
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How likely are you to recommend
Dr. Leonard?
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RecentHighestLowestMost Helpful
Reply Flag
I was in the hospital when Dr Leonard came by my room. Seemed highly intelligent which is all I care about in a physician. And he let me go home! I'd recommend him as long as you don't mind a strictly business Dr. No chit chat.
What went well
No results
What could be improved
No results
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Apr 05, 2019
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Reply Flag
This doctor is a total jerk!
What went well
No results
What could be improved
  • Difficult to schedule appointment
  • Office environment
  • Staff wasn't friendly
  • Appointment was rushed
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Didn't trust the provider's decisions
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Michele J in Appleton, WI – Jun 21, 2018
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Reply Flag
Dr. Leonard is an amazing doctor. He listens to his to his patients, investigates and does testing needed to make right diagnoses. He could have changed my asthma medication like other doctors have done based on results of my breathing test. Instead Dr. Leonard decided to investigate to find out what is going on because breathing tests not consistent with someone with asthma. Dr. Leonard also did not start with expensive testing first, he used the least expensive testing possible to get results.
What went well
No results
What could be improved
No results
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Louise Witthuhn in Appleton, WI – Aug 07, 2017
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About Me

Biography

Dr. Daniel Leonard, DO is a Cardiovascular & Pulmonary Disease Specialist in Appleton, WI. Dr. Leonard has more experience with Obstructive Lung Disease...Read more

Specialties

  • Cardiovascular & Pulmonary Diseases
  • Pulmonary Disease

Frequently Asked Questions

Is Dr. Daniel Leonard, DO accepting new patients?

Does Dr. Daniel Leonard, DO accept my insurance?

What are Dr. Daniel Leonard, DO's top areas of care?

Locations

Affinity Heart & Lung Center

Affinity Heart & Lung Center1506 S Oneida St Appleton, WI 54915
1

Affiliated Hospitals

Check the quality of care at hospitals where Dr. Leonard treats patients.

Learn more

Ascension Northeast Wisconsin Mercy

Oshkosh, WI
  • Outstanding Patient Experience Award™ (2019)

Ascension Northeast Wisconsin Saint Elizabeth

Appleton, WI

76% Patient experience rating, 7% higher than the national average

  • Outstanding Patient Experience Award™ (2018)
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