Dr. John G. Mellas
- Gender: Male
- Experience: 44 years
- Graduated from: University Of Illinois College Of Med (chi/peor/rock/chm-urb)
- Graduation year: 1977
- Sole propriator: No
- NPI: 1497712079
Dr. John G. Mellas MD
Nephrologist
He is located at 1011 Bowles Avenue Suite 220 in Fenton, MO 63026. Can help patients with the following: Atherosclerosis, Chest Pain, Cystitis, Inguinal Hernia, Low Potassium, Nausea and Vomiting. His National Provider Identifier (NPI) number is 1497712079. Appointment can be made via the phone number (636) 681-3030. He is affiliated with 2 practices and 5 hospitals.
Conditions treated
Dr. John Mellas, being an nephrologist, 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. John G. Mellas.
- Abdominal Pain
- Acute Pain
- Anemia
- Arthritis
- Asthma
- Atherosclerosis
- Bladder Control
- Blood in Urine
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Constipation
- Cystitis
- Diarrhea
- Edema
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Gout
- Headache
- Heart Disease
- Hemolytic Uremic Syndrome (HUS)
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hydronephrosis
- Hypercalcemia
- Hyperkalemia
- Hyperlipidemia
- Hyperparathyroidism
- Hyponatremia
- Influenza
- Inguinal Hernia
- Kidney Cancer
- Kidney Failure
- Kidney Infection
- Kidney Stones
- Low Blood Pressure
- Low Potassium
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Peptic Ulcer
- Polycystic Kidney Disease (PKD)
- Prescription Refill
- Rhabdomyolysis
- Urethritis
- Urinary Tract Infection (UTI)
- Vitamin D Deficiency
Procedures Performed by Dr. John G. Mellas
Insurances Accepted by Dr. John G. Mellas
- Medicare
Medicare Enrollment
Dr. John G. Mellas is enrolled to bill Medicare as a Practitioner - Nephrology (also registered under: Practitioner - Internal Medicine) .
Bills through: Nephrology And Hypertension Specialists Llc
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and is not a comment on insurance accepted, quality, outcomes, or board certification.
Payments received
Drug payment
| Mallinckrodt | $315 |
| Questcor Pharmaceuticals | $74 |
| Bard Peripheral Vascular | $70 |
Other
| Food and Beverage | $592 |
Studies
UNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated in 1977Additional Specialities
- Internist
Affiliated hospitals
Questions & Answers
Where can you meet with Dr. John Mellas?
Dr. John Mellas's office is located at 1011 Bowles Avenue Suite 220 in Fenton, MO 63026.
Does Dr. John Mellas accept patients with Medicare?
Yes, Dr. John Mellas accepts patients with Medicare.
What conditions does Dr. John Mellas treat?
Dr. John Mellas provides treatment for Atherosclerosis, Chest Pain, Cystitis, Inguinal Hernia, Low Potassium, Nausea and Vomiting. For the full list see this list.
Has Dr. John Mellas affiliation with hospitals?
Dr. John Mellas is affiliated with CENTRAL DUPAGE HOSPITAL. For the full list of hospitals see this list.
Does Dr. John Mellas have affiliation with practices?
Dr. John Mellas is affiliated with SSM Health St. Mary's Hospital of St. Louis. For the full list of practices see this list.