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Dr. John Asheld, DO
Cardiology* Age 44
Dr. John Asheld, DO
5.0 (1 Ratings)

Offers telehealth
Map Pin Small West Islip, NY
Dr. John Asheld, DO is a Cardiologist in West Islip, NY.
Dr. John Asheld, DO
5.0 (1 Ratings)

Dr. John Asheld, DO

Cardiology* Age 44
West Islip, NY
Accepting new patients
18 years of experience

Offers telehealth

Dr. John Asheld, DO is a Cardiologist in West Islip, NY.

About Dr. John Asheld, DO

Dr. Asheld graduated from NY College Osteo Med in 2008 and completed a residency at Stony Brook University Hospital SUNY Health Sciences Center. Dr. John Asheld, DO is a Cardiologist in West Islip, NY and has 18 years experience. Dr. Asheld currently practices at Southbay Cardiovascular Assoc PC and is affiliated with St. Francis Hospital & Heart Center and Good Samaritan Hospital Medical Center. Dr. Asheld has experience treating conditions like Shortness of Breath, Syncope and Hypertension among other conditions at varying frequencies. Dr. Asheld's office accepts new patients and telehealth appointments. Dr. Asheld is board certified in Cardiovascular Disease and accepts multiple insurance plans.

Offers Telehealth

This provider offers telehealth appointments. Call the office to schedule.

Explains Conditions Well

Patients said this doctor explains conditions well.

Trustworthy

Patients said this doctor is trustworthy.

Low Wait Times

Patients are usually seen in 10 minutes or less.

Friendly Staff

Patients said the staff was friendly.

Easy Scheduling

Patients said scheduling was easy.

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Experience Check

Enter a condition or procedure
Shortness of Breath
Syncope
Hypertension
Shortness of Breath
Syncope
Hypertension
Shortness of Breath
Syncope
  • View other providers who treat Syncope
Hypertension
Chest Pain
Heart Palpitations
Hyperlipidemia
Unstable Angina
Heart Attack (Acute Myocardial Infarction)
Heart Attack (NSTEMI)
Lipid Disorders
Vascular Duplex Ultrasonography and Plethysmography
Electrocardiogram (EKG)
Tilt_Testing
Peripheral Vascular Disease (PAD, PVD)
Acute Coronary Syndrome
Supraventricular Tachycardia
Sick Sinus Syndrome
Ventricular Tachycardia (VT)
Paroxysmal Atrial Fibrillation
Nonrheumatic Tricuspid Disease
Cardiac Ultrasound
Coronary Artery Disease (CAD)
Atrial Fibrillation
Arrhythmias
Atherosclerosis
Heart Murmur
Pulmonary Valve Disease
Carotid Artery Disease
Cardiac MRI (Magnetic Resonance Imaging) of Heart or Chest
Angina
  • View other providers who treat Angina
Heart Disease
Tricuspid Valve Disease
Acute Venous Embolism Thrombosis
Mitral Valve Regurgitation
Deep Vein Thrombosis (DVT)
Tobacco Use Disorder
Mitral Valve Disease
Aortic Aneurysm
Aortic Valve Disease
Chest CT (incl. Heart and Lungs)
Heart Valve Disorders
Cardiomyopathy
Atrial Flutter
Heart Attack (STEMI)
Congestive Heart Failure
Sinus Bradycardia
Acute Congestive Heart Failure
Aortic Stenosis
Atherosclerosis of Aorta
Systolic Heart Failure
Peripheral Edema
Aortic Valve Regurgitation
Acute Deep Vein Thrombosis (DVT)
Congenital Heart Defects
Mitral Valve Prolapse
Chronic Congestive Heart Failure
Rheumatic Tricuspid Disease
Third Degree Heart Block
Cardiac Myocardial Perfusion Imaging
Typical Atrial Flutter
Hypotension (Excluding Maternal)
Hypotension
Sinus Tachycardia
Acute Upper Respiratory Infection
Aortic Ectasia
Hypertensive Heart Disease
Hypertensive Heart with Failure
Limb Pain
Vitamin D Deficiency
Atrial Septal Defect
Chronic Pulmonary Heart Diseases (incl. Pulmonary Hypertension)
Joint Pain
Mitral and Aortic Valve Disorder
Cardioversion, Elective
All Headaches (incl. Migraine)
Pulmonary Hypertension
Cardiomegaly
Abdominal Aortic Aneurysm (AAA)
Abdominal Pain
Abnormal Thyroid
Acidosis
  • View other providers who treat Acidosis
Actinic Keratosis
Acute Bronchitis
Acute Endocarditis
Acute Pharyngitis
Acute Sinusitis
ADHD and-or ADD
Allergic Conjunctivitis
Allergic Rhinitis
Anemia
  • View other providers who treat Anemia
Aneurysm
  • View other providers who treat Aneurysm
Aneurysm of Heart
Animal Allergies
Anxiety
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Aortic Dissection
Aortic Embolism and Thrombosis
Arteriovenous Fistula
Arthritis
Arthritis of the Elbow
Asthma
  • View other providers who treat Asthma
Ataxia
  • View other providers who treat Ataxia
Atypical Atrial Flutter
Back Pain
Balanoposthitis
Benign Chronic Pain Syndrome
Bladder Infection
Blood in Urine (Hematuria)
Bronchiectasis
Bronchitis
Bronchospasm
Bursitis
  • View other providers who treat Bursitis
Calcium Metabolism Disorders
Candidiasis of Skin and Nails
Cardiac Sarcoidosis
Cardiac Tamponade
Cardiomyopathy, Dilated
Cardiomyopathy, Hypertrophic
Cardiomyopathy, Restrictive
Carpal Tunnel Syndrome
Celiac Disease
Cellulitis
Chest Wall Pain Syndrome
Chronic Deep Vein Thrombosis (DVT)
Chronic Fatigue Syndrome
Chronic Neck Pain
Chronic Pain
Chronic Sinusitis
Chronic Venous Embolism Thrombosis
Confusion
Congenital Aortic Valve Disorders
Congenital Heart Disease
Constipation
Contact Dermatitis
COPD (Chronic Obstructive Pulmonary Disease)
Cor Pulmonale
Coronary Vessel Malformation
Cough
  • View other providers who treat Cough
Dehydration
Diabetes Type 1
Diabetes Type 2
Diabetes With Renal Manifestations
Diabetic Polyneuropathy
Diarrhea
  • View other providers who treat Diarrhea
Difficulty With Walking
Dizziness
Dry Eyes
  • View other providers who treat Dry Eyes
Dyslipidemia
Dysphagia
Eczema and Contact Dermatitis
Emphysema
Endocarditis
Enlarged Prostate (BPH)
Enteritis
Esophagitis
Essential Tremor
Familial Hypercholesterolemia
Fever
  • View other providers who treat Fever
Fibromyalgia
First Degree Heart Block
Foot Infection
Gait Abnormality
Gastritis
Gastroesophageal Reflux Disease (GERD)
Gastroparesis
Gout
  • View other providers who treat Gout
Hammer Toe
Headache
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Hemorrhoids
Hernia
  • View other providers who treat Hernia
Herpes Simplex Infection
Hidradenitis Suppurativa
High Cholesterol
Human Immunodeficiency Virus (HIV)
Hydrocele
Hypercalcemia
Hyperkalemia
Hypertensive Chronic Kidney Disease
Hypertensive Encephalopathy
Hypertensive Heart and Chronic Kidney Disease
Hypertensive Heart without Failure
Hypoglycemia
Hypogonadism
Hypokalemia
Hypothyroidism
Hypoxemia
Idiopathic Hypotension
Infective Endocarditis
Influenza (Flu)
Insomnia
  • View other providers who treat Insomnia
Intestinal Diverticulitis
Intestinal Diverticulosis
Iodine Deficiency
Iron Metabolism Disorders
Irritable Bowel Syndrome
Kidney Stone Pain (Renal Colic)
Leg and Foot Ulcers
Limb Swelling
Limb Swelling Caused by Fluid Overload
Liver Damage from Alcohol
Low Back Pain
Lyme Disease
Magnesium Metabolism Disorders
Malaise and Fatigue
Malnutrition
Mastodynia
Menopausal and Postmenopausal Disorders
Menstrual Disorders
Migraine
  • View other providers who treat Migraine
Mineral Metabolism Disorders
Mitral Valve Stenosis
Muscle Cramping
Muscle Spasm
Muscle Weakness
Nausea
  • View other providers who treat Nausea
Nighttime Urination (Nocturia)
Noninfectious Gastroenteritis and Colitis
Noninfective Endocarditis
Nonrheumatic Mitral Stenosis
Obesity
  • View other providers who treat Obesity
Orthostatic Hypotension
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
Osteopenia
Osteoporosis
Otitis Media
Overactive Bladder
Overweight
Patellofemoral Pain Syndrome (PFPS)
Patent Foramen Ovale (PFO)
Peptic Ulcer
Pericardial Disease
Pericarditis
Peripheral Arterial Disease of Extremities
Peripheral Nerve Disorders
Pharyngitis
Phlebitis and Thrombophlebitis
Phosphorus Metabolism Disorders
Pinkeye (Conjunctivitis)
Pneumonia
Pollen Allergy
Polymyalgia Rheumatica (PMR)
Polyneuropathy
Polyuria
  • View other providers who treat Polyuria
Primary Pulmonary Hypertension
Prinzmetal Angina
Proteinuria
Pulmonary Edema
Purpura
  • View other providers who treat Purpura
Radiculopathy
Rash
  • View other providers who treat Rash
Raynaud's Disease
Reflux Esophagitis
Restless Leg Syndrome
Rheumatic Aortic Valve Disorders
Rheumatic Mitral Stenosis
Salivary Gland Stones and Inflammation
Sarcoidosis
Sciatica
  • View other providers who treat Sciatica
Second Degree Heart Block
Secondary Diabetes Mellitus
Secondary Hypertension
Secondary Renovascular Hypertension
Septal Defect
Sexually Transmitted Diseases (STDs)
Sickle Cell Disease
Sinusitis
Sleep Apnea
Sprains and Strains (incl. Muscle Tear)
Subacute Endocarditis
Swine Flu
Testicular Dysfunction
Thoracoabdominal Aortic Aneurysm
Thyroid Goiter
Transient Ischemic Attack (TIA)
Tremor
  • View other providers who treat Tremor
Type 2 Heart Block - Mobitz
Urinary Incontinence
Urinary Stones
Urinary Tract Infection (UTI)
Vaginitis or Vaginosis
Varicose Eczema
Vascular Disease
Venous Compression
Venous Embolism and Thrombosis
Venous Hypertension
Venous Insufficiency
Ventricular Fibrillation
Ventricular Septal Defect
Vertigo
  • View other providers who treat Vertigo
Viral Hepatitis
Vitamin A Deficiency
Vitamin B Deficiency
Vitamin B12 Deficiency
Wheezing
  • View other providers who treat Wheezing
Wolff-Parkinson-White Pattern
Cardiac Catheterization (incl. Coronary Angiography)
Cardiac Imaging
Nuclear Stress Testing
Peripheral Artery Catheterization
Physical Examination
Smoking Cessation Counseling
Structural Heart Disease Evaluations and Treatment
Wellness Examination

Accepted Insurance Plans

* Please verify this information when scheduling an appointment.
  • First Health (Coventry Health Care) PPO
  • Navigate HMO
    Options PPO
    Choice Plus POS
    Navigate Plus POS
  • MagnaCare PPO
  • Cigna PPO
    Open Access Plus
    Cigna HMO
  • Oscar Circle
  • BlueCard PPO
  • Liberty
    Freedom
  • MVP Health Plan EPO
  • Fidelis Care
  • Empire Hospital/Medical (Trad)
    Blue Acess Employer Sponsored
    Empire Blue Cross Blue Shield PPO
    Empire Hospital
  • Aetna HMO
    Select
    Open Choice PPO
    Managed Choice (Open Access) POS
    Choice Plus POS II
    Elect Choice (Open Access) EPO
    Premier Care Network Plus - Innovation Health
  • HealthyBlue Advantage
  • SimplyBlue/Simply Blue Plus PPO
    BluePPO HSA PPO

Where Dr. John Asheld, DO Sees Patients

  1. 1 Southbay Cardiovascular Assoc PC
    540 Union Blvd, West Islip, NY 11795
    Icon Directions Right Arrow Directions Phone Icon (631) 669-2555
  2. 2 Long Island Comprehensive Medical Care PLLC
    1231 Deer Park Ave, North Babylon, NY 11703
    Icon Directions Right Arrow Directions Phone Icon (631) 667-0388

What Patients Say

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

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Patient Reviews
Oct 10, 2025
Absolute one of the best doctors and I see a lot of doctors. He is friendly, courteous, professional, always a gentleman.
— Oct 10, 2025
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Telehealth Options
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(631) 669-2555

Meet Dr. John Asheld, DO

Specialties*
Internal Medicine
Geriatric Medicine
Cardiology
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. Asheld communicate via email?
1 user said yes.
Yes
(1)
No
(0)
Does Dr. Asheld offer telehealth services or virtual visits?
2 users said yes.
Yes
(2)
No
(0)
Does Dr. Asheld offer an online patient portal?
2 users said yes.
Yes
(2)
No
(0)
Does Dr. Asheld have free onsite parking?
2 users said yes.
Yes
(2)
No
(0)
Does Dr. Asheld offer weekend visits?
1 user said yes.
Yes
(1)
No
(0)
Does Dr. Asheld offer evening visits?
2 users said yes.
Yes
(2)
No
(0)
Does Dr. Asheld specialize in working with children or adolescents?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Asheld specialize in working with seniors?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Asheld specialize in couples therapy?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Asheld specialize in working with LGBTQ+ community?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Asheld accept insurance?
No responses yet.
Yes
(0)
No
(0)

FAQs About Dr. Asheld'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 Asheld, DO. To arrange an appointment, call the number on Dr. Asheld's profile.

Dr. Asheld frequently treats the following conditions: Shortness of Breath, Syncope and Hypertension. See more on Sharecare.

Dr. John Asheld, DO is affiliated with St. Francis Hospital & Heart Center and Good Samaritan Hospital Medical Center.

Yes, Dr. John Asheld, DO holds board certification in Cardiovascular Disease, Cardiovascular Disease and Internal Medicine.
Training & Medical Education
Medical Education
  • NY College Osteo Med
    2008
Medical Education
Board Certifications
  • Cardiovascular Disease, Cardiovascular Disease 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.
Internship
  • North Shore University at Plainview
    2009
Internship
Residency Hospital
  • Stony Brook University Hospital SUNY Health Sciences Center
    2013
Residency Hospital
Fellowship Hospital
  • Stony Brook University Renaissance School of Medicine
    2016
Fellowship Hospital

Hospitals Where Dr. John Asheld, DO Practices

  • St. Francis Hospital & Heart Center

    100 Port Washington Blvd, Roslyn, NY

  • Good Samaritan Hospital Medical Center

    1000 Montauk Hwy, West Islip, NY

Explore More Providers

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