Dr. Gregory A. St. John
- Gender: Male
- Experience: 31 years
- Graduated from: University Of Arkansas College Of Medicine
- Graduation year: 1990
- Sole propriator: No
- NPI: 1124023056
Dr. Gregory A. St. John M.D.
Cardiologist
He is located at 130 Medical Park Place in Hot Springs, AR 71901. Can help patients with the following: Aortic Stenosis, Atrial Septal Defect (ASD), Congestive Heart Failure (CHF), Inguinal Hernia, Mitral Valve Prolapse (MVP), Postural Orthostatic Tachycardia Syndrome (POTS). His National Provider Identifier (NPI) number is 1124023056. Appointment can be made via the phone number (501) 625-3400. He is affiliated with 1 practices and 2 hospitals.
Conditions treated
Dr. Gregory Allen St. John, being an cardiologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Gregory A. St. John.
- Abdominal Aortic Aneurysm (AAA)
- Abdominal Pain
- Acute Pain
- Amyloidosis
- Anemia
- Angina
- Aortic Stenosis
- Arrhythmia
- Arthritis
- Asthma
- Atherosclerosis
- Atrial Fibrillation
- Atrial Flutter
- Atrial Septal Defect (ASD)
- Birth Defects
- Bladder Control
- Blood Clots
- Bradycardia
- Cardiomyopathy
- Carotid Artery Disease
- Cerebral Aneurysm
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Chronic Venous Insufficiency
- Common Cold
- Congenital Heart Disease (CHD)
- Congestive Heart Failure (CHF)
- Constipation
- Cystitis
- Diarrhea
- Edema
- Endocarditis
- Fainting
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Headache
- Heart Attack
- Heart Disease
- Heart Murmur
- Heart Valve Disease
- Hiatal Hernia
- High Blood Pressure
- High Cholesterol
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Influenza
- Inguinal Hernia
- May-Thurner Syndrome
- Migraine
- Mitral Insufficiency
- Mitral Valve Prolapse (MVP)
- Mitral Valve Stenosis
- Myocarditis
- Nausea and Vomiting
- Obesity
- Orthostatic Hypotension
- Osteoporosis
- Pacemaker
- Palpitations
- Paroxysmal Supraventricular Tachycardia (PSVT)
- Peptic Ulcer
- Pericardial Tamponade
- Pericarditis
- Postural Orthostatic Tachycardia Syndrome (POTS)
- Premature Ventricular Contraction (PVC)
- Prescription Refill
- Pulmonary Edema
- Pulmonary Embolism (PE)
- Pulmonary Hypertension (PH)
- Renal Vascular Disease
- Rheumatic Fever
- Rheumatic Heart Disease
- Stroke
- Urethritis
- Urinary Tract Infection (UTI)
- Ventricular Fibrillation
- Ventricular Septal Defect (VSD)
- Wolff-Parkinson-White Syndrome (WPW)
Procedures Performed by Dr. Gregory A. St. John
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Gregory A. St. John as in-network for the following 2026 plans.
Health plans
Arkansas Blue Cross and Blue Shield
Network data as of Aug 1, 2006, as reported by the insurer.
Show all 7 plans from Arkansas Blue Cross and Blue Shield
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Bronze Exp Standardized | PPO · Expanded Bronze | True Blue PPO | Accepting new patients |
| Bronze Value | PPO · Expanded Bronze | True Blue PPO | Accepting new patients |
| Catastrophic HSA | PPO · Catastrophic | True Blue PPO | Accepting new patients |
| Gold Standardized | PPO · Gold | True Blue PPO | Accepting new patients |
| Gold Value | PPO · Gold | True Blue PPO | Accepting new patients |
| Silver AH | PPO · Silver | True Blue PPO | Accepting new patients |
| Silver Standardized | PPO · Silver | True Blue PPO | Accepting new patients |
Health Advantage
Network data as of Aug 1, 2006, as reported by the insurer.
Show all 8 plans from Health Advantage
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| HA Bronze Exp Standardized | POS · Expanded Bronze | True Blue PPO | Accepting new patients |
| HA Bronze National | POS · Expanded Bronze | True Blue PPO | Accepting new patients |
| HA Gold Premier National | POS · Gold | True Blue PPO | Accepting new patients |
| HA Gold Standardized | POS · Gold | True Blue PPO | Accepting new patients |
| HA Platinum Premier National | POS · Platinum | True Blue PPO | Accepting new patients |
| HA Platinum Standardized | POS · Platinum | True Blue PPO | Accepting new patients |
| HA Silver AH | POS · Silver | True Blue PPO | Accepting new patients |
| HA Silver Standardized | POS · Silver | True Blue PPO | Accepting new patients |
Octave
Network data as of Aug 1, 2006, as reported by the insurer.
Show all 6 plans from Octave
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Octave Bronze Exp Standardized | POS · Expanded Bronze | Usable Mutual Connect PPO | Accepting new patients |
| Octave Bronze Value | POS · Expanded Bronze | Usable Mutual Connect PPO | Accepting new patients |
| Octave Gold Classic National | POS · Gold | Usable Mutual Connect PPO | Accepting new patients |
| Octave Gold Standardized | POS · Gold | Usable Mutual Connect PPO | Accepting new patients |
| Octave Silver AH | POS · Silver | Usable Mutual Connect PPO | Accepting new patients |
| Octave Silver Standardized | POS · Silver | Usable Mutual Connect PPO | Accepting new patients |
Dental plans
Arkansas Blue Cross and Blue Shield
Network data as of Aug 1, 2006, as reported by the insurer.
Show all 8 plans from Arkansas Blue Cross and Blue Shield
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Dental Gold | PPO · High | True Blue PPO | Accepting new patients |
| Dental Gold Plus Vision | PPO · High | True Blue PPO | Accepting new patients |
| Dental Pediatric | PPO · High | True Blue PPO | Accepting new patients |
| Dental Platinum | PPO · High | True Blue PPO | Accepting new patients |
| Dental Platinum Plus Vision | PPO · High | True Blue PPO | Accepting new patients |
| Dental Platinum Premium | PPO · High | True Blue PPO | Accepting new patients |
| Dental Platinum Premium Plus Vision | PPO · High | True Blue PPO | Accepting new patients |
| Dental Silver | PPO · Low | True Blue PPO | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Gregory A. St. John is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. Gregory A. St. John is enrolled to bill Medicare as a Practitioner - Cardiovascular Disease (cardiology) .
Bills through: National Park Cardiology Services Llc
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Studies
UNIVERSITY OF ARKANSAS COLLEGE OF MEDICINE
Graduated in 1990Additional Specialities
- Internist
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Questions & Answers
Has Dr. Gregory Allen St. John affiliation with hospitals?
Dr. Gregory Allen St. John is affiliated with MENA REGIONAL HEALTH SYSTEM. For the full list of hospitals see this list.
Does Dr. Gregory Allen St. John have affiliation with practices?
Dr. Gregory Allen St. John is affiliated with National Park Cardiology Services.
Where can you meet with Dr. Gregory Allen St. John?
Dr. Gregory Allen St. John's office is located at 130 Medical Park Place in Hot Springs, AR 71901.
What conditions does Dr. Gregory Allen St. John treat?
Dr. Gregory Allen St. John provides treatment for Aortic Stenosis, Atrial Septal Defect (ASD), Congestive Heart Failure (CHF), Inguinal Hernia, Mitral Valve Prolapse (MVP), Postural Orthostatic Tachycardia Syndrome (POTS). For the full list see this list.
Does Dr. Gregory Allen St. John accept patients with Arkansas Blue Cross and Blue Shield?
Yes, Dr. Gregory Allen St. John is listed in-network for Arkansas Blue Cross and Blue Shield through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.